{"id":3597,"date":"2026-08-31T11:06:18","date_gmt":"2026-08-31T11:06:18","guid":{"rendered":"https:\/\/qualitanceindia.com\/?p=3597"},"modified":"2026-08-31T11:06:18","modified_gmt":"2026-08-31T11:06:18","slug":"bis-certification-consultancy-for-grain-oriented-electrical-steel-sheet-strip-crgo-is-30242015-bis-isi-mark-certification","status":"publish","type":"post","link":"https:\/\/qualitanceindia.com\/bis-certification-consultancy-for-grain-oriented-electrical-steel-sheet-strip-crgo-is-30242015-bis-isi-mark-certification\/","title":{"rendered":"BIS Certification Consultancy for Grain Oriented Electrical Steel Sheet &#038; Strip (CRGO) | IS 3024:2015 | BIS &#038; ISI Mark Certification"},"content":{"rendered":"<h2>Introduction<\/h2>\n<p class=\"isSelectedEnd\">Grain Oriented Electrical Steel, commonly known as <strong>CRGO Steel<\/strong>, is a specialised electrical steel used mainly for manufacturing transformer cores and other magnetic circuits. Its carefully controlled magnetic properties allow electrical equipment manufacturers to achieve lower core losses and high magnetic performance in the rolling direction.<\/p>\n<p class=\"isSelectedEnd\">In India, <strong>IS 3024:2015 \u2013 Cold Rolled Grain Oriented Electrical Steel Strip and Sheet Delivered in Fully Processed State<\/strong> specifies requirements for fully processed grain-oriented electrical steel sheet and strip. The current BIS Product Manual, revised in <strong>March 2025<\/strong>, states that certification is operated under <strong>Scheme-I of the BIS Conformity Assessment Regulations, 2018<\/strong> and records <strong>three amendments<\/strong> to the standard.<\/p>\n<p class=\"isSelectedEnd\">IS 3024:2015 is an important standard for manufacturers supplying CRGO electrical steel for transformer and other magnetic applications. The current BIS compulsory-certification framework lists the standard under the Steel and Steel Products category, while the applicable QCO identifies <strong>ITC (HS) Codes 72251100 and 72261100<\/strong> and provides for implementation with immediate effect.<\/p>\n<p class=\"isSelectedEnd\">The latest BIS implementation guidance also records <strong>Amendment No. 3 to IS 3024:2015<\/strong>, which introduced, among other changes, the <strong>18CG100<\/strong> conventional grade and new <strong>20HP70d and 20HP75d<\/strong> high-permeability grades. BIS specified <strong>13 July 2025<\/strong> as the last date for implementation of this amendment.<\/p>\n<p class=\"isSelectedEnd\"><strong>Qualitance India<\/strong> provides end-to-end BIS Certification Consultancy for Grain Oriented Electrical Steel Sheet and Strip as per <strong>IS 3024:2015<\/strong>, including product assessment, grade and condition review, product grouping, sample preparation, testing coordination, BIS application support and factory inspection preparation.<\/p>\n<h1>What is IS 3024:2015?<\/h1>\n<p class=\"isSelectedEnd\"><strong>IS 3024:2015<\/strong> is titled:<\/p>\n<p class=\"isSelectedEnd\"><strong>\u201cCold Rolled Grain Oriented Electrical Steel Strip and Sheet Delivered in Fully Processed State\u201d<\/strong><\/p>\n<p class=\"isSelectedEnd\">The current BIS Product Manual describes the product as fully processed, cold-rolled grain-oriented electrical steel strip and sheet. The licence scope is defined through parameters including <strong>dimensions, grade and condition<\/strong>.<\/p>\n<p class=\"isSelectedEnd\">The standard covers electrical steel intended primarily for transformer cores and other magnetic circuits where low specific total loss and high permeability in the direction of rolling are important.<\/p>\n<p class=\"isSelectedEnd\">The important characteristics covered under the BIS certification framework include:<\/p>\n<ul data-spread=\"false\">\n<li>Magnetic properties<\/li>\n<li>Specific core loss<\/li>\n<li>Magnetic polarization<\/li>\n<li>Surface insulation resistance<\/li>\n<li>Stacking factor<\/li>\n<li>Ductility<\/li>\n<li>Dimensions and tolerances<\/li>\n<li>Surface condition<\/li>\n<li>Suitability for cutting<\/li>\n<li>Workmanship<\/li>\n<li>Finish and appearance<\/li>\n<li>Delivery condition<\/li>\n<\/ul>\n<h1>What is CRGO Electrical Steel?<\/h1>\n<p class=\"isSelectedEnd\"><strong>CRGO<\/strong> means <strong>Cold Rolled Grain Oriented Electrical Steel<\/strong>.<\/p>\n<p class=\"isSelectedEnd\">It is a specialised silicon-electrical steel in which the crystal grain orientation is controlled during manufacturing so that the steel has excellent magnetic properties in the direction of rolling.<\/p>\n<p class=\"isSelectedEnd\">BIS&#8217;s current product information describes grain-oriented electrical steel as a low-carbon silicon-iron alloy with approximately <strong>3% silicon<\/strong>, where low total specific loss and high permeability in the rolling direction are achieved through appropriate metallurgical processing.<\/p>\n<p class=\"isSelectedEnd\">CRGO steel is manufactured in a fully processed condition with an insulating coating on the surfaces. This makes it suitable for use in laminated magnetic cores.<\/p>\n<h1>Applications of CRGO Steel<\/h1>\n<p class=\"isSelectedEnd\">CRGO electrical steel is primarily used in magnetic circuits where efficient magnetic performance is required.<\/p>\n<p class=\"isSelectedEnd\">Common applications include:<\/p>\n<ul data-spread=\"false\">\n<li>Power transformer cores<\/li>\n<li>Distribution transformer cores<\/li>\n<li>Electrical transformer laminations<\/li>\n<li>Reactor cores<\/li>\n<li>Magnetic circuits<\/li>\n<li>Power equipment<\/li>\n<li>High-efficiency electrical equipment<\/li>\n<\/ul>\n<p class=\"isSelectedEnd\">The current BIS product information specifically states that grain-oriented electrical steels are used primarily in <strong>transformer cores operating at commercial power frequencies and other magnetic circuits<\/strong>.<\/p>\n<h1>Why is CRGO Steel Important for Transformers?<\/h1>\n<p class=\"isSelectedEnd\">Transformer efficiency depends significantly on the magnetic properties of the core material.<\/p>\n<p class=\"isSelectedEnd\">CRGO steel is used because it provides:<\/p>\n<ul data-spread=\"false\">\n<li>Low core loss<\/li>\n<li>High magnetic permeability<\/li>\n<li>Controlled magnetic polarization<\/li>\n<li>Suitable stacking factor<\/li>\n<li>Surface insulation between laminations<\/li>\n<\/ul>\n<p class=\"isSelectedEnd\">These characteristics help transformer manufacturers achieve efficient magnetic performance.<\/p>\n<p class=\"isSelectedEnd\">Because these properties are critical to transformer-core design, proper testing and control of CRGO material are essential.<\/p>\n<h1>Scope of IS 3024:2015<\/h1>\n<p class=\"isSelectedEnd\">The current BIS Product Manual defines the licence scope using parameters such as:<\/p>\n<ul data-spread=\"false\">\n<li>Product name<\/li>\n<li>Width<\/li>\n<li>Length, where applicable for sheets<\/li>\n<li>Grade<\/li>\n<li>Condition<\/li>\n<\/ul>\n<p class=\"isSelectedEnd\">The licence scope is described as:<\/p>\n<p class=\"isSelectedEnd\"><strong>Cold Rolled Grain Oriented Electrical Steel Strip and Sheet Delivered in Fully Processed State<\/strong>.<\/p>\n<p class=\"isSelectedEnd\">The current Product Manual also classifies the material based on:<\/p>\n<ul data-spread=\"false\">\n<li>Conventional grade or high-permeability grade<\/li>\n<li>Nominal thickness<\/li>\n<li>Maximum specific total loss<\/li>\n<li>Domain refinement for high-permeability grades<\/li>\n<li>Delivery condition<\/li>\n<\/ul>\n<h1>Grades Covered Under IS 3024:2015<\/h1>\n<p class=\"isSelectedEnd\">The current framework includes conventional grain-oriented grades and high-permeability grades.<\/p>\n<h3>Conventional Grain Oriented Grades<\/h3>\n<p class=\"isSelectedEnd\">The March 2025 Product Manual includes grades such as:<\/p>\n<ul data-spread=\"false\">\n<li>18CG100<\/li>\n<li>23CG110<\/li>\n<li>23CG120<\/li>\n<li>23CG127<\/li>\n<li>27CG120<\/li>\n<li>27CG130<\/li>\n<li>30CG130<\/li>\n<li>30CG140<\/li>\n<li>30CG150<\/li>\n<li>35CG145<\/li>\n<li>35CG155<\/li>\n<li>35CG165<\/li>\n<\/ul>\n<h3>High Permeability Grain Oriented Grades<\/h3>\n<p class=\"isSelectedEnd\">The Product Manual includes grades such as:<\/p>\n<ul data-spread=\"false\">\n<li>20HP70<\/li>\n<li>20HP75<\/li>\n<li>23HP75<\/li>\n<li>23HP80<\/li>\n<li>23HP85<\/li>\n<li>23HP90<\/li>\n<li>23HP95<\/li>\n<li>23HP100<\/li>\n<li>27HP85<\/li>\n<li>27HP90<\/li>\n<li>27HP95<\/li>\n<li>27HP100<\/li>\n<li>27HP110<\/li>\n<li>30HP95<\/li>\n<li>30HP100<\/li>\n<li>30HP105<\/li>\n<li>30HP110<\/li>\n<li>30HP120<\/li>\n<li>35HP110<\/li>\n<li>35HP115<\/li>\n<li>35HP125<\/li>\n<li>35HP135<\/li>\n<\/ul>\n<h3>New Grades Added Through Amendment No. 3<\/h3>\n<p class=\"isSelectedEnd\">BIS&#8217;s March 2025 implementation guidelines added:<\/p>\n<p class=\"isSelectedEnd\"><strong>18CG100<\/strong><\/p>\n<p class=\"isSelectedEnd\">for the 0.18 mm nominal thickness category and:<\/p>\n<p class=\"isSelectedEnd\"><strong>20HP70d and 20HP75d<\/strong><\/p>\n<p class=\"isSelectedEnd\">for 0.20 mm high-permeability domain-refined grades.<\/p>\n<p class=\"isSelectedEnd\">Manufacturers should ensure that their product specifications and certification scope reflect the latest applicable amendment.<\/p>\n<h1>Domain Refined and Non-Domain Refined CRGO<\/h1>\n<p class=\"isSelectedEnd\">The current BIS Product Manual recognises domain-refined and non-domain-refined conditions for applicable high-permeability grades.<\/p>\n<p class=\"isSelectedEnd\">For grades carrying the suffix <strong>\u201cd\u201d<\/strong>, the Product Manual explains that the suffix indicates the use of the relevant test method associated with domain-refined material.<\/p>\n<p class=\"isSelectedEnd\">The Product Manual also states that grades indicated with suffix \u201cd\u201d may be delivered in domain-refined or non-domain-refined conditions, subject to the provisions of the standard.<\/p>\n<h1>Is BIS Certification Mandatory for CRGO Steel?<\/h1>\n<p class=\"isSelectedEnd\"><strong>Yes. Grain Oriented Electrical Steel Sheet and Strip under IS 3024:2015 is covered under the compulsory BIS certification framework.<\/strong><\/p>\n<p class=\"isSelectedEnd\">The current BIS Scheme-I page includes IS 3024:2015 under Steel and Iron Products and references the applicable Steel and Steel Products Quality Control Orders.<\/p>\n<p class=\"isSelectedEnd\">The <strong>Steel and Steel Products (Quality Control) Order, 2024<\/strong> lists:<\/p>\n<p class=\"isSelectedEnd\"><strong>IS 3024:2015 \u2013 Grain Oriented Electrical Steel Sheet and Strip<\/strong><\/p>\n<p class=\"isSelectedEnd\">with ITC (HS) Codes:<\/p>\n<ul data-spread=\"false\">\n<li><strong>72251100<\/strong><\/li>\n<li><strong>72261100<\/strong><\/li>\n<\/ul>\n<p class=\"isSelectedEnd\">and specifies implementation <strong>with immediate effect<\/strong>.<\/p>\n<p class=\"isSelectedEnd\">For covered products, manufacturers must meet the applicable BIS certification requirements before using the Standard Mark.<\/p>\n<h1>Steel and Steel Products Quality Control Order<\/h1>\n<p class=\"isSelectedEnd\">The current regulatory framework places IS 3024:2015 within the Steel and Steel Products QCO framework.<\/p>\n<p class=\"isSelectedEnd\">The 2024 order superseded the earlier Steel and Steel Products QCO framework, and IS 3024:2015 is listed among the specified steel products.<\/p>\n<p class=\"isSelectedEnd\">The applicable QCO entry identifies CRGO material under ITC (HS) Codes <strong>72251100 and 72261100<\/strong> and specifies immediate implementation.<\/p>\n<p class=\"isSelectedEnd\">Manufacturers and importers should always check the latest QCO amendment, exemption and government notifications before finalising a compliance position.<\/p>\n<h1>BIS Certification for CRGO Electrical Steel<\/h1>\n<p class=\"isSelectedEnd\">BIS Certification for CRGO electrical steel confirms conformity with the applicable requirements of <strong>IS 3024:2015<\/strong>.<\/p>\n<p class=\"isSelectedEnd\">The current BIS Product Manual states that the certification process operates under:<\/p>\n<p class=\"isSelectedEnd\"><strong>Scheme-I of the BIS Conformity Assessment Regulations, 2018.<\/strong><\/p>\n<p class=\"isSelectedEnd\">After successful certification and grant of the BIS licence, the manufacturer can use the <strong>BIS Standard Mark \/ ISI Mark<\/strong> on products covered by the approved licence scope in accordance with BIS requirements.<\/p>\n<h1>Who Needs BIS Certification for CRGO Steel?<\/h1>\n<p class=\"isSelectedEnd\">BIS certification is relevant to manufacturers producing CRGO sheet and strip falling within the scope of IS 3024:2015.<\/p>\n<p class=\"isSelectedEnd\">This can include:<\/p>\n<ul data-spread=\"false\">\n<li>CRGO Steel Manufacturers<\/li>\n<li>Electrical Steel Manufacturers<\/li>\n<li>Grain Oriented Electrical Steel Manufacturers<\/li>\n<li>Electrical Steel Sheet Manufacturers<\/li>\n<li>Electrical Steel Strip Manufacturers<\/li>\n<li>Transformer Core Material Manufacturers<\/li>\n<li>Transformer Material Suppliers<\/li>\n<li>Magnetic Material Manufacturers<\/li>\n<li>Steel Processing Units<\/li>\n<li>OEM Manufacturers<\/li>\n<li>Contract Manufacturers<\/li>\n<\/ul>\n<p class=\"isSelectedEnd\">Businesses importing CRGO material should also verify applicable BIS and QCO requirements.<\/p>\n<h1>BIS Certification Eligibility Requirements<\/h1>\n<p class=\"isSelectedEnd\">A manufacturer seeking BIS certification should have suitable manufacturing, testing and quality-control facilities.<\/p>\n<p class=\"isSelectedEnd\">Depending on the production setup, these may include:<\/p>\n<ul data-spread=\"false\">\n<li>Steelmaking facilities<\/li>\n<li>Rolling facilities<\/li>\n<li>Cold-rolling facilities<\/li>\n<li>Annealing facilities<\/li>\n<li>Domain-refinement facilities, where applicable<\/li>\n<li>Insulation coating facilities<\/li>\n<li>Slitting facilities<\/li>\n<li>Cutting equipment<\/li>\n<li>Magnetic-property testing facilities<\/li>\n<li>Surface-insulation testing facilities<\/li>\n<li>Stacking-factor testing facilities<\/li>\n<li>Ductility-testing facilities<\/li>\n<li>Dimensional inspection equipment<\/li>\n<li>Calibration system<\/li>\n<li>Quality-control personnel<\/li>\n<li>Production records<\/li>\n<li>Test records<\/li>\n<li>Coil and batch traceability<\/li>\n<\/ul>\n<p class=\"isSelectedEnd\">The exact facilities depend on the grade, thickness, condition and proposed product scope.<\/p>\n<h1>BIS Certification Process for CRGO Steel<\/h1>\n<h2>Step 1 \u2013 Product Applicability Assessment<\/h2>\n<p class=\"isSelectedEnd\">The first step is to determine whether the product falls within IS 3024:2015.<\/p>\n<p class=\"isSelectedEnd\">Important parameters include:<\/p>\n<ul data-spread=\"false\">\n<li>Grade<\/li>\n<li>Thickness<\/li>\n<li>Width<\/li>\n<li>Sheet or strip<\/li>\n<li>Delivery condition<\/li>\n<li>Domain-refined or non-domain-refined status, where applicable<\/li>\n<li>Magnetic test method<\/li>\n<li>Proposed licence scope<\/li>\n<\/ul>\n<h2>Step 2 \u2013 Grade and Condition Assessment<\/h2>\n<p class=\"isSelectedEnd\">The manufacturer determines the applicable grade and delivery\/surface condition.<\/p>\n<p class=\"isSelectedEnd\">The current Product Manual specifically requires the following parameters to be declared in the test request:<\/p>\n<ul data-spread=\"false\">\n<li>Grade<\/li>\n<li>Condition \/ surface type<\/li>\n<li>Magnetic-property test method<\/li>\n<li>Ductility test method<\/li>\n<li>Stress-relief annealing requirement for Epstein test specimen<\/li>\n<li>Ageing requirement of test pieces<\/li>\n<\/ul>\n<h2>Step 3 \u2013 Product Grouping<\/h2>\n<p class=\"isSelectedEnd\">Product grouping is assessed according to Annex A of the current Product Manual.<\/p>\n<p class=\"isSelectedEnd\">Grouping is based on:<\/p>\n<ul data-spread=\"false\">\n<li>Conventional or high permeability<\/li>\n<li>Nominal thickness<\/li>\n<li>Maximum specific total loss<\/li>\n<li>Domain refinement<\/li>\n<li>Delivery condition<\/li>\n<\/ul>\n<h2>Step 4 \u2013 Licence Scope Finalisation<\/h2>\n<p class=\"isSelectedEnd\">The proposed width, length where applicable, grade and condition are finalised.<\/p>\n<h2>Step 5 \u2013 Documentation Preparation<\/h2>\n<p class=\"isSelectedEnd\">Technical, production and quality-control documents are prepared.<\/p>\n<h2>Step 6 \u2013 Sample Preparation<\/h2>\n<p class=\"isSelectedEnd\">CRGO samples are prepared according to the grade category and testing method.<\/p>\n<h2>Step 7 \u2013 Laboratory Testing<\/h2>\n<p class=\"isSelectedEnd\">Representative samples are tested for applicable physical, mechanical and magnetic properties.<\/p>\n<h2>Step 8 \u2013 BIS Application<\/h2>\n<p class=\"isSelectedEnd\">The manufacturer submits the BIS application and required documentation.<\/p>\n<h2>Step 9 \u2013 Factory Assessment<\/h2>\n<p class=\"isSelectedEnd\">BIS assesses the manufacturing, testing and quality-control facilities.<\/p>\n<h2>Step 10 \u2013 Observation Closure<\/h2>\n<p class=\"isSelectedEnd\">Any observations are addressed through corrective actions and supporting evidence.<\/p>\n<h2>Step 11 \u2013 BIS Licence Grant<\/h2>\n<p class=\"isSelectedEnd\">After successful conformity assessment, BIS grants the licence for the approved scope.<\/p>\n<h2>Step 12 \u2013 ISI Marking<\/h2>\n<p class=\"isSelectedEnd\">The manufacturer applies the BIS Standard Mark to products covered by the approved licence in accordance with BIS requirements.<\/p>\n<h1>CRGO Testing Requirements<\/h1>\n<p class=\"isSelectedEnd\">Testing is one of the most important parts of BIS certification because magnetic properties determine the performance of electrical steel.<\/p>\n<p class=\"isSelectedEnd\">The current BIS Product Manual includes testing for:<\/p>\n<ul data-spread=\"false\">\n<li>Specific core loss<\/li>\n<li>Magnetic polarization<\/li>\n<li>Surface insulation characteristics<\/li>\n<li>Stacking factor<\/li>\n<li>Ductility<\/li>\n<li>Thickness<\/li>\n<li>Width<\/li>\n<li>Length<\/li>\n<li>Edge camber<\/li>\n<li>Flatness<\/li>\n<li>Burr height<\/li>\n<li>Residual curvature<\/li>\n<li>Surface condition<\/li>\n<li>Suitability for cutting<\/li>\n<li>Workmanship and appearance<\/li>\n<\/ul>\n<h1>Specific Core Loss<\/h1>\n<p class=\"isSelectedEnd\">Specific core loss is one of the most important magnetic characteristics of CRGO steel.<\/p>\n<p class=\"isSelectedEnd\">Lower core loss means that less energy is dissipated in the transformer core during operation.<\/p>\n<p class=\"isSelectedEnd\">The BIS Product Manual identifies <strong>Clause 8.1<\/strong> and the relevant magnetic-property tables for this requirement.<\/p>\n<p class=\"isSelectedEnd\">Current BIS LIMS listings provide specific testing arrangements for:<\/p>\n<ul data-spread=\"false\">\n<li>CRGO strips with annealing<\/li>\n<li>CRGO strips without annealing<\/li>\n<li>CRGO sheets<\/li>\n<li>Aged test pieces, where applicable<\/li>\n<\/ul>\n<h1>Magnetic Polarization<\/h1>\n<p class=\"isSelectedEnd\">Magnetic polarization is another important electrical-steel characteristic.<\/p>\n<p class=\"isSelectedEnd\">It indicates the magnetic response achieved at the specified magnetic field conditions.<\/p>\n<p class=\"isSelectedEnd\">The Product Manual identifies <strong>Clause 8.2<\/strong> for magnetic polarization. Testing can be carried out using the <strong>Epstein method<\/strong> or <strong>Single Sheet Tester<\/strong>, depending on the applicable grade and test arrangement.<\/p>\n<h1>Surface Insulation Resistance<\/h1>\n<p class=\"isSelectedEnd\">The surfaces of CRGO sheets and strips are provided with insulation to electrically separate adjacent laminations in a transformer core.<\/p>\n<p class=\"isSelectedEnd\">The Product Manual identifies <strong>surface insulation characteristics under Clause 9<\/strong>.<\/p>\n<p class=\"isSelectedEnd\">The test equipment list includes a <strong>Franklin tester<\/strong> with appropriate test head, press and pressure gauge.<\/p>\n<h1>Stacking Factor<\/h1>\n<p class=\"isSelectedEnd\">Stacking factor is important in transformer-core construction because it affects the effective magnetic cross-sectional area of the assembled core.<\/p>\n<p class=\"isSelectedEnd\">The Product Manual identifies <strong>Clause 10.1 \u2013 Stacking Factor<\/strong>.<\/p>\n<p class=\"isSelectedEnd\">The test equipment includes:<\/p>\n<ul data-spread=\"false\">\n<li>Compression device or CTM<\/li>\n<li>Pressure gauge<\/li>\n<li>Vernier caliper or dial gauge<\/li>\n<li>Weighing machine<\/li>\n<li>Rigid metal plates<\/li>\n<\/ul>\n<p class=\"isSelectedEnd\">The 2025 amendment also modified the stacking-factor provisions by adding minimum specimen dimensions and tolerances for testing.<\/p>\n<h1>Ductility and Bend Test<\/h1>\n<p class=\"isSelectedEnd\">CRGO sheet and strip must have suitable ductility for transformer-core manufacturing operations.<\/p>\n<p class=\"isSelectedEnd\">The Product Manual identifies <strong>Clause 10.2 \u2013 Ductility<\/strong>, including applicable bend-test procedures.<\/p>\n<p class=\"isSelectedEnd\">The current sample requirements include strips cut along the grain direction for ductility\/bend testing.<\/p>\n<h1>Thickness<\/h1>\n<p class=\"isSelectedEnd\">Thickness is a critical dimensional parameter because transformer-core design depends on precise lamination thickness.<\/p>\n<p class=\"isSelectedEnd\">The current BIS LIMS database lists <strong>Clause 11.1 \u2013 Thickness<\/strong> for IS 3024:2015.<\/p>\n<p class=\"isSelectedEnd\">Thickness is checked against the specified nominal thickness and applicable tolerance.<\/p>\n<h1>Width and Length<\/h1>\n<p class=\"isSelectedEnd\">The current Product Manual identifies:<\/p>\n<ul data-spread=\"false\">\n<li>Width<\/li>\n<li>Length, where applicable for sheets<\/li>\n<\/ul>\n<p class=\"isSelectedEnd\">as part of the product dimensions and licence scope.<\/p>\n<p class=\"isSelectedEnd\">BIS LIMS currently lists separate testing entries for width and length.<\/p>\n<h1>Edge Camber<\/h1>\n<p class=\"isSelectedEnd\">Edge camber is controlled because excessive variation can affect processing, slitting and lamination preparation.<\/p>\n<p class=\"isSelectedEnd\">The BIS testing database lists edge-camber testing for IS 3024:2015.<\/p>\n<h1>Flatness<\/h1>\n<p class=\"isSelectedEnd\">Flatness is important for proper stacking and cutting of electrical-steel laminations.<\/p>\n<p class=\"isSelectedEnd\">The current BIS LIMS database lists <strong>Clause 11.5 \u2013 Flatness<\/strong>.<\/p>\n<h1>Burr Height<\/h1>\n<p class=\"isSelectedEnd\">Burr height is important for transformer-lamination production because excessive burrs can affect insulation and lamination stacking.<\/p>\n<p class=\"isSelectedEnd\">The Product Manual includes burr height within the dimensions and tolerances requirements, and BIS LIMS provides a separate test entry for burr height.<\/p>\n<h1>Residual Curvature<\/h1>\n<p class=\"isSelectedEnd\">Residual curvature is included within the dimensional and tolerance requirements.<\/p>\n<p class=\"isSelectedEnd\">The Product Manual specifically identifies residual curvature as one of the full-width coil tests carried out during factory testing.<\/p>\n<h1>Surface Condition<\/h1>\n<p class=\"isSelectedEnd\">Surface condition is an important characteristic for CRGO because the surface must be suitable for the required insulating coating and subsequent transformer-core manufacturing processes.<\/p>\n<p class=\"isSelectedEnd\">The current BIS Product Manual identifies <strong>Clause 7.4 \u2013 Surface Condition<\/strong>, with factory testing on full-width coils.<\/p>\n<h1>Suitability for Cutting<\/h1>\n<p class=\"isSelectedEnd\">CRGO material must have suitable characteristics for cutting and processing into transformer laminations.<\/p>\n<p class=\"isSelectedEnd\">The Product Manual identifies <strong>Clause 7.5 \u2013 Suitability for Cutting<\/strong> as a factory test requirement.<\/p>\n<h1>Workmanship, Finish and Appearance<\/h1>\n<p class=\"isSelectedEnd\">The product should have suitable workmanship, finish and appearance consistent with the requirements of the standard.<\/p>\n<p class=\"isSelectedEnd\">The current Product Manual specifies that these characteristics are tested on <strong>full-width coils during factory testing<\/strong>.<\/p>\n<h1>Epstein Method and Single Sheet Tester<\/h1>\n<p class=\"isSelectedEnd\">The current Product Manual allows applicable magnetic properties to be tested using:<\/p>\n<ul data-spread=\"false\">\n<li><strong>Epstein Method<\/strong><\/li>\n<li><strong>Single Sheet Tester<\/strong><\/li>\n<\/ul>\n<p class=\"isSelectedEnd\">The selected method is one of the parameters that must be declared in the test request.<\/p>\n<p class=\"isSelectedEnd\">The appropriate method depends on the grade and applicable provisions of the standard.<\/p>\n<h1>Stress Relief Annealing<\/h1>\n<p class=\"isSelectedEnd\">For applicable CRGO grades, the Product Manual requires declaration regarding the <strong>stress-relief annealing of Epstein test specimens<\/strong>.<\/p>\n<p class=\"isSelectedEnd\">This is an important consideration because sample preparation and magnetic testing conditions can influence the results.<\/p>\n<p class=\"isSelectedEnd\">The requirement is specifically identified as one of the parameters to be declared in the test request.<\/p>\n<h1>Ageing Test<\/h1>\n<p class=\"isSelectedEnd\">The current Product Manual also requires declaration regarding the <strong>ageing of test pieces<\/strong> where applicable.<\/p>\n<p class=\"isSelectedEnd\">It separately notes that specific core-loss testing on aged test pieces is not included within the list of all tests that may be completed in one day during factory inspection.<\/p>\n<p class=\"isSelectedEnd\">The ageing requirement should therefore be established before sample preparation and testing.<\/p>\n<h1>CRGO Sample Requirements for BIS Certification<\/h1>\n<p class=\"isSelectedEnd\">The sample quantity depends on the type of CRGO grade.<\/p>\n<h2>Conventional Grades<\/h2>\n<p class=\"isSelectedEnd\">For conventional grades, the current Product Manual specifies approximately:<\/p>\n<p class=\"isSelectedEnd\"><strong>50 strips of 305 mm \u00d7 30 mm<\/strong>, cut along the grain direction, with a minimum weight of <strong>400 grams for magnetic properties<\/strong>.<\/p>\n<p class=\"isSelectedEnd\">It also specifies:<\/p>\n<p class=\"isSelectedEnd\"><strong>10 strips of 280 mm \u00d7 30 mm<\/strong> for ductility\/bend testing.<\/p>\n<p class=\"isSelectedEnd\">Another:<\/p>\n<p class=\"isSelectedEnd\"><strong>10 strips of 280 mm \u00d7 30 mm<\/strong> for surface insulation testing.<\/p>\n<h2>High Permeability Domain Refined Grades Not Amenable to Heat Treatment<\/h2>\n<p class=\"isSelectedEnd\">For these grades, the Product Manual specifies:<\/p>\n<ul data-spread=\"false\">\n<li>One <strong>500 mm \u00d7 500 mm sheet<\/strong> for core loss and polarization<\/li>\n<li>Approximately 50 strips of <strong>305 mm \u00d7 30 mm<\/strong> for stacking factor<\/li>\n<li>10 strips of <strong>280 mm \u00d7 30 mm<\/strong> for ductility\/bend testing<\/li>\n<li>10 strips of <strong>280 mm \u00d7 30 mm<\/strong> for surface insulation testing<\/li>\n<\/ul>\n<h2>High Permeability Domain Refined Grades Amenable to Heat Treatment and Non-Domain Refined Grades<\/h2>\n<p class=\"isSelectedEnd\">The Product Manual specifies approximately:<\/p>\n<ul data-spread=\"false\">\n<li>50 strips of <strong>305 mm \u00d7 30 mm<\/strong>, minimum 400 g for magnetic properties<\/li>\n<li>10 strips of <strong>280 mm \u00d7 30 mm<\/strong> for ductility\/bend testing<\/li>\n<li>10 strips of <strong>280 mm \u00d7 30 mm<\/strong> for surface insulation testing<\/li>\n<\/ul>\n<h1>Factory Testing of CRGO<\/h1>\n<p class=\"isSelectedEnd\">A major feature of the current Product Manual is that many physical, dimensional and appearance characteristics are to be tested on <strong>full-width coils during factory testing<\/strong>.<\/p>\n<p class=\"isSelectedEnd\">These include:<\/p>\n<ul data-spread=\"false\">\n<li>Forms of supply<\/li>\n<li>Surface condition<\/li>\n<li>Suitability for cutting<\/li>\n<li>Thickness<\/li>\n<li>Width<\/li>\n<li>Length<\/li>\n<li>Edge camber<\/li>\n<li>Flatness<\/li>\n<li>Burr height<\/li>\n<li>Residual curvature<\/li>\n<li>Workmanship<\/li>\n<li>Finish<\/li>\n<li>Appearance<\/li>\n<\/ul>\n<p class=\"isSelectedEnd\">This makes suitable in-house testing capability particularly important for CRGO manufacturers.<\/p>\n<h1>Product Grouping for IS 3024:2015<\/h1>\n<p class=\"isSelectedEnd\">Product grouping is a critical part of CRGO BIS certification.<\/p>\n<p class=\"isSelectedEnd\">The current Product Manual classifies CRGO according to:<\/p>\n<ol start=\"1\" data-spread=\"false\">\n<li>Conventional or high-permeability grade<\/li>\n<li>Nominal thickness<\/li>\n<li>Maximum specific total loss<\/li>\n<li>Domain refinement, where applicable<\/li>\n<li>Delivery condition<\/li>\n<\/ol>\n<h2>Conventional Grade Grouping<\/h2>\n<p class=\"isSelectedEnd\">The current grouping table includes groups such as:<\/p>\n<h3>Group 1<\/h3>\n<p class=\"isSelectedEnd\"><strong>18CG100<\/strong><\/p>\n<p class=\"isSelectedEnd\">One sample of the grade is drawn and tested.<\/p>\n<h3>Group 1<\/h3>\n<p class=\"isSelectedEnd\"><strong>23CG110, 23CG120 and 23CG127<\/strong><\/p>\n<p class=\"isSelectedEnd\">The lower maximum-specific-total-loss grade is selected for testing so that other grades within the group having higher maximum specific total loss can also be included, subject to the Product Manual provisions.<\/p>\n<h3>Group 2<\/h3>\n<p class=\"isSelectedEnd\"><strong>27CG120, 27CG130<\/strong><\/p>\n<h3>Group 3<\/h3>\n<p class=\"isSelectedEnd\"><strong>30CG130, 30CG140, 30CG150<\/strong><\/p>\n<h3>Group 4<\/h3>\n<p class=\"isSelectedEnd\"><strong>35CG145, 35CG155, 35CG165<\/strong><\/p>\n<h1>High Permeability Grade Grouping<\/h1>\n<p class=\"isSelectedEnd\">The Product Manual also provides grouping for HPGO grades.<\/p>\n<p class=\"isSelectedEnd\">For example:<\/p>\n<p class=\"isSelectedEnd\"><strong>20HP70 and 20HP75<\/strong> are grouped together.<\/p>\n<p class=\"isSelectedEnd\">Similarly, groups are provided for:<\/p>\n<ul data-spread=\"false\">\n<li>23HP75\u201323HP100<\/li>\n<li>27HP85\u201327HP110<\/li>\n<li>30HP95\u201330HP120<\/li>\n<li>35HP110\u201335HP135<\/li>\n<\/ul>\n<p class=\"isSelectedEnd\">The grouping provisions generally use a grade with lower maximum specific total loss as the representative sample for covering other grades within the group having higher maximum specific total loss.<\/p>\n<h1>Insulation Condition Grouping<\/h1>\n<p class=\"isSelectedEnd\">The Product Manual provides an important grouping provision for insulation characteristics.<\/p>\n<p class=\"isSelectedEnd\">Where a sample with a <strong>higher insulation characteristic<\/strong>, such as F, is tested, lower insulation characteristics such as <strong>NF and PQ<\/strong> may also be included in the licence scope, subject to the provisions of the Product Manual.<\/p>\n<h1>Licence Scope Restriction<\/h1>\n<p class=\"isSelectedEnd\">The Product Manual clearly states:<\/p>\n<p class=\"isSelectedEnd\"><strong>\u201cScope of licence shall be restricted based on the manufacturing and testing facilities available.\u201d<\/strong><\/p>\n<p class=\"isSelectedEnd\">This means a manufacturer should not apply for a larger CRGO grade or dimension range than its actual production and laboratory capabilities can support.<\/p>\n<h1>Testing Equipment for IS 3024:2015<\/h1>\n<p class=\"isSelectedEnd\">The current BIS Product Manual provides an indicative list of testing equipment.<\/p>\n<h2>Magnetic Testing<\/h2>\n<p class=\"isSelectedEnd\">For Epstein-method testing, equipment can include:<\/p>\n<ul data-spread=\"false\">\n<li>Epstein test frame<\/li>\n<li>Tesla meter<\/li>\n<li>Timer<\/li>\n<li>Vernier calipers<\/li>\n<li>Frequency meter<\/li>\n<li>Flux voltmeter<\/li>\n<li>RMS voltmeter<\/li>\n<li>Wattmeter<\/li>\n<li>RMS ammeter<\/li>\n<li>Ageing oven<\/li>\n<li>Micrometer<\/li>\n<li>Thermometer<\/li>\n<li>Air conditioner with heater<\/li>\n<li>Shearing machine<\/li>\n<li>Punching machine<\/li>\n<li>Stress-relieving furnace<\/li>\n<li>Temperature indicator<\/li>\n<li>Weighing balance<\/li>\n<\/ul>\n<h2>Single Sheet Tester<\/h2>\n<p class=\"isSelectedEnd\">For domain-refined grades, the Product Manual identifies:<\/p>\n<ul data-spread=\"false\">\n<li>Single Sheet Tester<\/li>\n<li>Tesla meter<\/li>\n<li>Timer<\/li>\n<li>Frequency meter<\/li>\n<li>Flux voltmeter<\/li>\n<li>RMS voltmeter<\/li>\n<li>Wattmeter<\/li>\n<li>RMS ammeter<\/li>\n<li>Ageing oven<\/li>\n<li>Micrometer<\/li>\n<li>Thermometer<\/li>\n<li>Stress-relieving furnace<\/li>\n<li>Weighing balance<\/li>\n<\/ul>\n<h2>Surface Insulation<\/h2>\n<p class=\"isSelectedEnd\">Equipment includes:<\/p>\n<p class=\"isSelectedEnd\"><strong>Franklin tester with test head, press and pressure gauge<\/strong>, together with current\/voltage measurement equipment.<\/p>\n<h2>Stacking Factor<\/h2>\n<p class=\"isSelectedEnd\">Equipment includes:<\/p>\n<ul data-spread=\"false\">\n<li>Compression device \/ CTM<\/li>\n<li>Pressure gauge<\/li>\n<li>Vernier caliper \/ dial gauge<\/li>\n<li>Weighing machine<\/li>\n<li>Rigid metal plates<\/li>\n<\/ul>\n<h2>Dimensions<\/h2>\n<p class=\"isSelectedEnd\">Equipment includes:<\/p>\n<ul data-spread=\"false\">\n<li>Measuring tape<\/li>\n<li>Measuring scale<\/li>\n<li>Micrometer<\/li>\n<li>Long-arm digital gauge<\/li>\n<li>Straight edge<\/li>\n<li>Depth gauge<\/li>\n<li>Steel scale<\/li>\n<li>Taper gauge<\/li>\n<li>Surface plate<\/li>\n<li>Vernier calipers<\/li>\n<\/ul>\n<h2>Ductility<\/h2>\n<p class=\"isSelectedEnd\">The Product Manual identifies:<\/p>\n<ul data-spread=\"false\">\n<li>Bend tester<\/li>\n<li>Thinner brake with apron brake<\/li>\n<li>Hand folder<\/li>\n<li>Measuring tape<\/li>\n<\/ul>\n<p class=\"isSelectedEnd\">The equipment list is described by BIS as <strong>indicative<\/strong> and for guidance.<\/p>\n<h1>BIS Factory Inspection for CRGO<\/h1>\n<p class=\"isSelectedEnd\">Factory assessment is particularly important for CRGO because many dimensional and physical characteristics are expected to be controlled at the manufacturing site.<\/p>\n<p class=\"isSelectedEnd\">During assessment, BIS may review:<\/p>\n<h3>Rolling and Processing Facilities<\/h3>\n<p class=\"isSelectedEnd\">The manufacturing line used for producing cold-rolled grain-oriented electrical steel.<\/p>\n<h3>Annealing Facilities<\/h3>\n<p class=\"isSelectedEnd\">Applicable heat-treatment and stress-relief arrangements.<\/p>\n<h3>Domain Refinement<\/h3>\n<p class=\"isSelectedEnd\">Facilities and process control for applicable domain-refined grades.<\/p>\n<h3>Insulation Coating<\/h3>\n<p class=\"isSelectedEnd\">Equipment and process controls for surface insulation.<\/p>\n<h3>Cutting and Slitting<\/h3>\n<p class=\"isSelectedEnd\">Facilities used for producing sheet and strip dimensions.<\/p>\n<h3>Magnetic Laboratory<\/h3>\n<p class=\"isSelectedEnd\">Availability of Epstein frame and\/or Single Sheet Tester as applicable.<\/p>\n<h3>Surface Insulation Testing<\/h3>\n<p class=\"isSelectedEnd\">Franklin-testing capability.<\/p>\n<h3>Stacking Factor<\/h3>\n<p class=\"isSelectedEnd\">Appropriate compression and dimensional equipment.<\/p>\n<h3>Dimensional Inspection<\/h3>\n<p class=\"isSelectedEnd\">Suitable equipment for thickness, width, length, flatness, edge camber, burr height and other dimensional parameters.<\/p>\n<h3>Calibration<\/h3>\n<p class=\"isSelectedEnd\">Testing and measuring equipment should be maintained under a suitable calibration system.<\/p>\n<h3>Quality Records<\/h3>\n<p class=\"isSelectedEnd\">Test and production records should be maintained.<\/p>\n<h1>Quality Assurance Plan<\/h1>\n<p class=\"isSelectedEnd\">The current BIS Product Manual requires manufacturers to implement a <strong>Quality Assurance Plan<\/strong> consisting of regular testing and in-process controls to ensure that products bearing the Standard Mark conform to IS 3024:2015.<\/p>\n<p class=\"isSelectedEnd\">The manufacturer is expected to:<\/p>\n<ul data-spread=\"false\">\n<li>Define the control unit<\/li>\n<li>Define testing frequency<\/li>\n<li>Define number of samples<\/li>\n<li>Maintain test records<\/li>\n<li>Submit the Quality Assurance Plan to the BIS Branch Office for information<\/li>\n<li>Follow the approved control programme<\/li>\n<\/ul>\n<h1>Control Unit for CRGO<\/h1>\n<p class=\"isSelectedEnd\">The current Product Manual recommends a control unit as:<\/p>\n<p class=\"isSelectedEnd\"><strong>A single charge of the product of one or more casts heat-treated together with similar quality grading, up to a maximum weight of 5 tonnes or one mother coil, whichever is higher.<\/strong><\/p>\n<p class=\"isSelectedEnd\">This definition is important for planning routine testing and production records.<\/p>\n<h1>Routine Testing Requirements<\/h1>\n<p class=\"isSelectedEnd\">The current BIS Product Manual provides recommended levels of control for CRGO manufacturing.<\/p>\n<p class=\"isSelectedEnd\">Routine controls cover the applicable:<\/p>\n<ul data-spread=\"false\">\n<li>Magnetic properties<\/li>\n<li>Surface insulation<\/li>\n<li>Stacking factor<\/li>\n<li>Ductility<\/li>\n<li>Dimensions<\/li>\n<li>Surface condition<\/li>\n<li>Cutting suitability<\/li>\n<li>Appearance<\/li>\n<li>Other applicable characteristics<\/li>\n<\/ul>\n<p class=\"isSelectedEnd\">The exact frequency depends on the test and the applicable product category under the Scheme of Inspection and Testing.<\/p>\n<h1>Test Certificate for CRGO<\/h1>\n<p class=\"isSelectedEnd\">For each consignment of BIS-certified CRGO material conforming to IS 3024:2015, the BIS inspection framework requires a test certificate.<\/p>\n<p class=\"isSelectedEnd\">The certificate should include information such as:<\/p>\n<ul data-spread=\"false\">\n<li>BIS Standard Mark<\/li>\n<li>Coil\/pallet number<\/li>\n<li>Cast or batch number<\/li>\n<li>Grade designation<\/li>\n<li>Nominal thickness<\/li>\n<li>Size<\/li>\n<li>Delivery condition<\/li>\n<li>Corresponding test results<\/li>\n<\/ul>\n<p class=\"isSelectedEnd\">Maintaining accurate test certificates is important for both customer documentation and product traceability.<\/p>\n<h1>Marking Requirements<\/h1>\n<p class=\"isSelectedEnd\">The BIS inspection framework requires suitable product identification.<\/p>\n<p class=\"isSelectedEnd\">The current BIS scheme identifies marking information including:<\/p>\n<ul data-spread=\"false\">\n<li>Test number or lot identification number<\/li>\n<li>Date of manufacture<\/li>\n<li>Manufacturer&#8217;s name or trademark<\/li>\n<li>Grade<\/li>\n<li>Relevant product identification<\/li>\n<\/ul>\n<p class=\"isSelectedEnd\">The grade designation should also appear in the test certificate.<\/p>\n<p class=\"isSelectedEnd\">The manufacturer must apply the BIS Standard Mark only to products covered by the approved licence and conforming to the standard.<\/p>\n<h1>Raw Material Requirements<\/h1>\n<p class=\"isSelectedEnd\">The current BIS Product Manual states:<\/p>\n<p class=\"isSelectedEnd\"><strong>Raw Material: No specific requirement.<\/strong><\/p>\n<p class=\"isSelectedEnd\">However, manufacturers still need effective control of incoming material and production inputs.<\/p>\n<p class=\"isSelectedEnd\">Important records can include:<\/p>\n<ul data-spread=\"false\">\n<li>Raw-material specification<\/li>\n<li>Supplier details<\/li>\n<li>Material certificates<\/li>\n<li>Heat\/cast records<\/li>\n<li>Incoming inspection<\/li>\n<li>Chemical records<\/li>\n<li>Production traceability<\/li>\n<\/ul>\n<h1>Manufacturing Process for CRGO Steel<\/h1>\n<p class=\"isSelectedEnd\">A CRGO manufacturing route can generally include:<\/p>\n<ol start=\"1\" data-spread=\"false\">\n<li>Raw-material preparation<\/li>\n<li>Steelmaking<\/li>\n<li>Chemical composition control<\/li>\n<li>Casting<\/li>\n<li>Hot rolling<\/li>\n<li>Cold rolling<\/li>\n<li>Intermediate annealing<\/li>\n<li>Decarburization and process treatment<\/li>\n<li>Final cold rolling<\/li>\n<li>Grain-orientation development<\/li>\n<li>Final annealing<\/li>\n<li>Domain refinement, where applicable<\/li>\n<li>Surface insulation coating<\/li>\n<li>Slitting<\/li>\n<li>Cutting<\/li>\n<li>Dimensional inspection<\/li>\n<li>Magnetic testing<\/li>\n<li>Surface insulation testing<\/li>\n<li>Stacking-factor testing<\/li>\n<li>Ductility testing<\/li>\n<li>Final inspection<\/li>\n<li>Packing<\/li>\n<li>Marking<\/li>\n<\/ol>\n<p class=\"isSelectedEnd\">The actual process depends on the manufacturer&#8217;s technology and product grade.<\/p>\n<h1>Documents Required for BIS Certification<\/h1>\n<p class=\"isSelectedEnd\">Typical documents may include:<\/p>\n<ul data-spread=\"false\">\n<li>Company registration documents<\/li>\n<li>Factory address proof<\/li>\n<li>Factory layout<\/li>\n<li>Manufacturing process flow chart<\/li>\n<li>Machinery list<\/li>\n<li>Product specifications<\/li>\n<li>Grade details<\/li>\n<li>Nominal thickness<\/li>\n<li>Width range<\/li>\n<li>Sheet\/strip details<\/li>\n<li>Delivery condition<\/li>\n<li>Domain-refinement details<\/li>\n<li>Raw-material information<\/li>\n<li>Material certificates<\/li>\n<li>Heat\/cast records<\/li>\n<li>Testing equipment list<\/li>\n<li>Calibration certificates<\/li>\n<li>Quality Assurance Plan<\/li>\n<li>Inspection procedures<\/li>\n<li>Production records<\/li>\n<li>Test records<\/li>\n<li>Magnetic-property reports<\/li>\n<li>Surface-insulation reports<\/li>\n<li>Dimensional inspection records<\/li>\n<li>Product photographs<\/li>\n<li>Packing details<\/li>\n<li>Marking details<\/li>\n<li>Test certificate format<\/li>\n<li>Authorised signatory documents<\/li>\n<li>Trademark documents, where applicable<\/li>\n<\/ul>\n<p class=\"isSelectedEnd\">The final documentation depends on the manufacturer&#8217;s production process and proposed BIS licence scope.<\/p>\n<h1>Common Reasons for BIS Certification Delays<\/h1>\n<p class=\"isSelectedEnd\">CRGO manufacturers may face delays because of:<\/p>\n<ul data-spread=\"false\">\n<li>Incorrect grade selection<\/li>\n<li>Wrong nominal thickness<\/li>\n<li>Incorrect maximum core-loss category<\/li>\n<li>Incorrect domain-refinement declaration<\/li>\n<li>Wrong delivery condition<\/li>\n<li>Incorrect magnetic test method<\/li>\n<li>Inadequate sample preparation<\/li>\n<li>Core-loss failure<\/li>\n<li>Magnetic-polarization failure<\/li>\n<li>Surface-insulation failure<\/li>\n<li>Stacking-factor failure<\/li>\n<li>Ductility failure<\/li>\n<li>Thickness non-conformity<\/li>\n<li>Width or length non-conformity<\/li>\n<li>Excessive flatness variation<\/li>\n<li>Edge-camber issues<\/li>\n<li>Excessive burr height<\/li>\n<li>Poor surface condition<\/li>\n<li>Cutting-related problems<\/li>\n<li>Missing calibration records<\/li>\n<li>Inadequate magnetic-testing facilities<\/li>\n<li>Incomplete traceability<\/li>\n<li>Incorrect product grouping<\/li>\n<li>Factory not ready for assessment<\/li>\n<li>Incomplete technical documentation<\/li>\n<li>Incorrect BIS marking<\/li>\n<\/ul>\n<p class=\"isSelectedEnd\">The latest amendment should also be considered, especially where new grades or updated test requirements apply. BIS required implementation of Amendment No. 3 by <strong>13 July 2025<\/strong>.<\/p>\n<h1>BIS Certification Cost for CRGO Electrical Steel<\/h1>\n<p class=\"isSelectedEnd\">There is no single fixed BIS certification cost applicable to every CRGO manufacturer.<\/p>\n<p class=\"isSelectedEnd\">The overall cost can depend on:<\/p>\n<ul data-spread=\"false\">\n<li>BIS application fees<\/li>\n<li>Laboratory testing<\/li>\n<li>Grade<\/li>\n<li>Nominal thickness<\/li>\n<li>Product grouping<\/li>\n<li>Magnetic testing method<\/li>\n<li>Domain-refined or non-domain-refined condition<\/li>\n<li>Sheet or strip production<\/li>\n<li>Number of samples<\/li>\n<li>Factory assessment<\/li>\n<li>Testing equipment<\/li>\n<li>Calibration<\/li>\n<li>Documentation<\/li>\n<li>Retesting, if required<\/li>\n<li>Consultancy charges<\/li>\n<\/ul>\n<p class=\"isSelectedEnd\">Current BIS LIMS entries show laboratory-specific charges for IS 3024:2015.<\/p>\n<p class=\"isSelectedEnd\">For example, one current BIS listing for ERDA shows a total testing charge of <strong>\u20b927,735 excluding taxes<\/strong> for all grades as per IS, with separate charges for magnetic, surface-insulation, stacking-factor and dimensional tests. Another current CPRI Bangalore listing shows <strong>\u20b920,100 excluding taxes<\/strong> for its listed testing scope.<\/p>\n<p class=\"isSelectedEnd\">These are laboratory-specific testing charges and <strong>not the complete BIS certification cost<\/strong>.<\/p>\n<h1>Current BIS CRGO Testing Charges<\/h1>\n<p class=\"isSelectedEnd\">Current BIS LIMS data provides examples of individual test charges.<\/p>\n<p class=\"isSelectedEnd\">At one current laboratory, listed charges include:<\/p>\n<table>\n<tbody>\n<tr>\n<th>Test<\/th>\n<th>Listed Charge<\/th>\n<\/tr>\n<tr>\n<td>Thickness \u2013 Epstein method<\/td>\n<td>\u20b9575<\/td>\n<\/tr>\n<tr>\n<td>Thickness \u2013 SST method<\/td>\n<td>\u20b9575<\/td>\n<\/tr>\n<tr>\n<td>Specific Core Loss \u2013 CRGO strips with annealing<\/td>\n<td>\u20b93,125<\/td>\n<\/tr>\n<tr>\n<td>Magnetic Polarization \u2013 CRGO strips<\/td>\n<td>\u20b91,565<\/td>\n<\/tr>\n<tr>\n<td>Surface Insulation Resistance<\/td>\n<td>\u20b92,230<\/td>\n<\/tr>\n<tr>\n<td>Stacking Factor<\/td>\n<td>\u20b9575<\/td>\n<\/tr>\n<tr>\n<td>Ductility \/ Bend Test<\/td>\n<td>\u20b9575<\/td>\n<\/tr>\n<tr>\n<td>Specific Core Loss \u2013 CRGO Sheet<\/td>\n<td>\u20b95,750<\/td>\n<\/tr>\n<tr>\n<td>Magnetic Polarization \u2013 CRGO Sheet<\/td>\n<td>\u20b95,750<\/td>\n<\/tr>\n<tr>\n<td>Accelerated Ageing Core Loss<\/td>\n<td>\u20b97,590<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p class=\"isSelectedEnd\">At CPRI Bangalore, the current listing shows separate charges of <strong>\u20b91,100 for thickness, width, length, edge camber and flatness<\/strong>, along with \u20b91,500 for bends, \u20b93,500 for core loss and polarization, \u20b92,500 for surface insulation and stacking factor, and \u20b92,500 for surface condition.<\/p>\n<p class=\"isSelectedEnd\">Laboratory charges may change, so manufacturers should confirm the current quotation with the selected BIS laboratory before testing.<\/p>\n<h1>BIS Certification Timeline for CRGO<\/h1>\n<p class=\"isSelectedEnd\">The certification timeline depends on:<\/p>\n<ul data-spread=\"false\">\n<li>Grade and thickness<\/li>\n<li>Product grouping<\/li>\n<li>Magnetic test method<\/li>\n<li>Sample preparation<\/li>\n<li>Laboratory availability<\/li>\n<li>Magnetic test results<\/li>\n<li>Factory testing<\/li>\n<li>BIS application scrutiny<\/li>\n<li>Factory assessment<\/li>\n<li>Observation closure<\/li>\n<\/ul>\n<p class=\"isSelectedEnd\">CRGO certification can require more technical preparation than ordinary steel products because magnetic-property testing is a central part of conformity assessment.<\/p>\n<h1>Benefits of BIS Certification for CRGO Steel<\/h1>\n<h3>Regulatory Compliance<\/h3>\n<p class=\"isSelectedEnd\">Helps manufacturers comply with applicable BIS and Steel QCO requirements.<\/p>\n<h3>ISI Mark<\/h3>\n<p class=\"isSelectedEnd\">Allows eligible manufacturers to use the BIS Standard Mark on approved CRGO products.<\/p>\n<h3>Verified Magnetic Performance<\/h3>\n<p class=\"isSelectedEnd\">Testing provides evidence of conformity for core loss and magnetic polarization.<\/p>\n<h3>Better Transformer Efficiency<\/h3>\n<p class=\"isSelectedEnd\">Controlled magnetic properties support efficient transformer-core design.<\/p>\n<h3>Surface Insulation Quality<\/h3>\n<p class=\"isSelectedEnd\">Surface-insulation testing helps ensure proper electrical separation between laminations.<\/p>\n<h3>Consistent Production<\/h3>\n<p class=\"isSelectedEnd\">Routine testing and control units help maintain consistent material quality.<\/p>\n<h3>Customer Confidence<\/h3>\n<p class=\"isSelectedEnd\">BIS certification can strengthen confidence among transformer manufacturers and electrical-equipment companies.<\/p>\n<h3>Market Acceptance<\/h3>\n<p class=\"isSelectedEnd\">Certification supports legal supply where BIS certification is compulsory.<\/p>\n<h3>Better Traceability<\/h3>\n<p class=\"isSelectedEnd\">Coil, batch and test-certificate information support product traceability.<\/p>\n<h1>Why Choose Qualitance India?<\/h1>\n<p class=\"isSelectedEnd\"><strong>Qualitance India<\/strong> provides professional BIS Certification Consultancy for manufacturers seeking BIS and ISI Mark certification.<\/p>\n<p class=\"isSelectedEnd\">For <strong>Grain Oriented Electrical Steel Sheet and Strip \/ CRGO as per IS 3024:2015<\/strong>, our consultancy support can include:<\/p>\n<ul data-spread=\"false\">\n<li>Product applicability assessment<\/li>\n<li>IS 3024:2015 requirement review<\/li>\n<li>Latest amendment review<\/li>\n<li>Grade assessment<\/li>\n<li>Nominal thickness assessment<\/li>\n<li>Domain-refinement assessment<\/li>\n<li>Delivery-condition assessment<\/li>\n<li>Magnetic test method assessment<\/li>\n<li>Product grouping guidance<\/li>\n<li>Licence-scope planning<\/li>\n<li>Sample selection guidance<\/li>\n<li>Sample preparation guidance<\/li>\n<li>Laboratory testing coordination<\/li>\n<li>Magnetic testing coordination<\/li>\n<li>Surface-insulation testing coordination<\/li>\n<li>Ductility testing coordination<\/li>\n<li>BIS application assistance<\/li>\n<li>Factory inspection preparation<\/li>\n<li>Quality Assurance Plan support<\/li>\n<li>Testing equipment guidance<\/li>\n<li>Observation closure support<\/li>\n<li>BIS licence assistance<\/li>\n<\/ul>\n<p class=\"isSelectedEnd\">Our support is designed to help manufacturers manage the certification process from product assessment and grouping through testing, BIS application, factory inspection and licence approval.<\/p>\n<h3>Contact Qualitance India<\/h3>\n<p class=\"isSelectedEnd\"><strong>Phone:<\/strong> +91 93106 15170<br \/>\n<strong>Email:<\/strong> <a href=\"mailto:info@qualitanceindia.com\">info@qualitanceindia.com<\/a><br \/>\n<strong>Website:<\/strong> qualitanceindia.com<\/p>\n<h1>BIS Certification Process \u2013 Quick Flow<\/h1>\n<p class=\"isSelectedEnd\"><strong>Product Identification<\/strong><br \/>\n\u2193<br \/>\n<strong>IS 3024:2015 Requirement Review<\/strong><br \/>\n\u2193<br \/>\n<strong>Grade &amp; Thickness Assessment<\/strong><br \/>\n\u2193<br \/>\n<strong>Conventional \/ High Permeability Assessment<\/strong><br \/>\n\u2193<br \/>\n<strong>Domain Refinement Assessment<\/strong><br \/>\n\u2193<br \/>\n<strong>Delivery Condition Assessment<\/strong><br \/>\n\u2193<br \/>\n<strong>Product Grouping<\/strong><br \/>\n\u2193<br \/>\n<strong>Licence Scope Finalisation<\/strong><br \/>\n\u2193<br \/>\n<strong>Sample Preparation<\/strong><br \/>\n\u2193<br \/>\n<strong>Magnetic Property Testing<\/strong><br \/>\n\u2193<br \/>\n<strong>Surface Insulation &amp; Stacking Factor Testing<\/strong><br \/>\n\u2193<br \/>\n<strong>Ductility &amp; Dimensional Testing<\/strong><br \/>\n\u2193<br \/>\n<strong>BIS Application<\/strong><br \/>\n\u2193<br \/>\n<strong>Application Scrutiny<\/strong><br \/>\n\u2193<br \/>\n<strong>Factory Assessment<\/strong><br \/>\n\u2193<br \/>\n<strong>Observation Closure<\/strong><br \/>\n\u2193<br \/>\n<strong>BIS Licence Grant<\/strong><br \/>\n\u2193<br \/>\n<strong>ISI Mark on Approved CRGO Steel<\/strong><\/p>\n<h1>Frequently Asked Questions<\/h1>\n<h2>1. What is IS 3024:2015?<\/h2>\n<p class=\"isSelectedEnd\">IS 3024:2015 is the Indian Standard for <strong>Cold Rolled Grain Oriented Electrical Steel Strip and Sheet Delivered in Fully Processed State<\/strong>.<\/p>\n<h2>2. What is CRGO steel?<\/h2>\n<p class=\"isSelectedEnd\">CRGO stands for <strong>Cold Rolled Grain Oriented Electrical Steel<\/strong>. It is specialised electrical steel used mainly for transformer cores and magnetic circuits.<\/p>\n<h2>3. Is BIS certification mandatory for CRGO steel?<\/h2>\n<p class=\"isSelectedEnd\">Yes. IS 3024:2015 is included in the compulsory BIS certification framework for the applicable steel products.<\/p>\n<h2>4. Which ITC HS codes are applicable?<\/h2>\n<p class=\"isSelectedEnd\">The 2024 Steel and Steel Products QCO lists <strong>72251100 and 72261100<\/strong> for IS 3024:2015.<\/p>\n<h2>5. What are the main tests for CRGO?<\/h2>\n<p class=\"isSelectedEnd\">Important tests include specific core loss, magnetic polarization, surface insulation resistance, stacking factor, ductility, thickness, width, length, edge camber, flatness, burr height and surface condition.<\/p>\n<h2>6. Which magnetic testing methods are used?<\/h2>\n<p class=\"isSelectedEnd\">The current Product Manual identifies the <strong>Epstein Method<\/strong> and <strong>Single Sheet Tester<\/strong> as applicable magnetic-property testing methods.<\/p>\n<h2>7. What is specific core loss?<\/h2>\n<p class=\"isSelectedEnd\">Specific core loss measures the energy lost in the electrical steel under specified magnetic operating conditions. It is one of the most important performance characteristics of CRGO.<\/p>\n<h2>8. What is magnetic polarization?<\/h2>\n<p class=\"isSelectedEnd\">Magnetic polarization is a magnetic characteristic measured under the applicable test conditions and specified in the standard&#8217;s magnetic-property requirements.<\/p>\n<h2>9. What is surface insulation resistance?<\/h2>\n<p class=\"isSelectedEnd\">Surface insulation resistance evaluates the electrical insulation provided by the coating on the CRGO sheet or strip.<\/p>\n<h2>10. What is stacking factor?<\/h2>\n<p class=\"isSelectedEnd\">Stacking factor indicates the proportion of effective steel material in a stacked transformer core compared with the total stacked volume.<\/p>\n<h2>11. What sample is required for conventional grades?<\/h2>\n<p class=\"isSelectedEnd\">The March 2025 Product Manual specifies approximately <strong>50 strips of 305 mm \u00d7 30 mm<\/strong> cut along the grain direction, with a minimum 400 g required for magnetic properties, plus separate strips for ductility\/bend and surface-insulation tests.<\/p>\n<h2>12. What sample is required for some high-permeability domain-refined grades?<\/h2>\n<p class=\"isSelectedEnd\">For high-permeability domain-refined grades not amenable to heat treatment, the Product Manual specifies <strong>one 500 mm \u00d7 500 mm sheet<\/strong> for core loss and polarization and additional strips for stacking factor, ductility\/bend and surface insulation.<\/p>\n<h2>13. Is product grouping available?<\/h2>\n<p class=\"isSelectedEnd\">Yes. Grouping is based on conventional\/high-permeability grade, nominal thickness, maximum specific total loss, domain refinement and delivery condition.<\/p>\n<h2>14. Can higher insulation characteristics cover lower characteristics?<\/h2>\n<p class=\"isSelectedEnd\">The Product Manual states that testing a sample with a higher insulation characteristic, such as F, can permit lower characteristics such as NF or PQ to be included in the licence scope, subject to the stated provisions.<\/p>\n<h2>15. What are the new grades added by Amendment No. 3?<\/h2>\n<p class=\"isSelectedEnd\">The 2025 amendment added <strong>18CG100<\/strong>, <strong>20HP70d<\/strong> and <strong>20HP75d<\/strong>, among other changes.<\/p>\n<h2>16. When did Amendment No. 3 have to be implemented?<\/h2>\n<p class=\"isSelectedEnd\">BIS&#8217;s implementation guidance specified <strong>13 July 2025<\/strong> as the last date for implementation.<\/p>\n<h2>17. Is factory testing important for CRGO?<\/h2>\n<p class=\"isSelectedEnd\">Yes. The current Product Manual specifies that several dimensional, surface and workmanship requirements are tested on full-width coils during factory testing.<\/p>\n<h2>18. What is the control unit for CRGO?<\/h2>\n<p class=\"isSelectedEnd\">The recommended control unit is a single charge of product of one or more casts heat-treated together with similar quality grading, up to 5 tonnes or one mother coil, whichever is higher.<\/p>\n<h2>19. What is the current CRGO laboratory testing cost?<\/h2>\n<p class=\"isSelectedEnd\">Current BIS LIMS entries show laboratory-specific charges. Examples include <strong>\u20b927,735<\/strong> at ERDA and <strong>\u20b920,100<\/strong> at CPRI Bangalore for their listed testing scopes.<\/p>\n<h2>20. Is \u20b927,735 the complete BIS certification cost?<\/h2>\n<p class=\"isSelectedEnd\">No. It is a laboratory-specific testing charge. BIS application fees, factory assessment, testing equipment, calibration, documentation, retesting and consultancy expenses can be additional.<\/p>\n<h2>21. What is the BIS certification process for CRGO?<\/h2>\n<p class=\"isSelectedEnd\">It generally includes product assessment, grade and thickness selection, grouping, sample preparation, magnetic and physical testing, BIS application, factory assessment, observation closure and licence grant.<\/p>\n<h2>22. Can Qualitance India help with IS 3024:2015 certification?<\/h2>\n<p class=\"isSelectedEnd\">Yes. Qualitance India provides product assessment, grouping guidance, documentation, sample preparation, laboratory testing coordination, BIS application support and factory inspection preparation.<\/p>\n<h1>People Also Ask<\/h1>\n<h3>What is BIS certification for CRGO steel?<\/h3>\n<p class=\"isSelectedEnd\">BIS certification for CRGO steel is the conformity-assessment process for demonstrating compliance with <strong>IS 3024:2015<\/strong> under the BIS certification framework.<\/p>\n<h3>Is IS 3024:2015 under a QCO?<\/h3>\n<p class=\"isSelectedEnd\">Yes. IS 3024:2015 is included under the <strong>Steel and Steel Products (Quality Control) Order, 2024<\/strong>.<\/p>\n<h3>What is the BIS standard for CRGO electrical steel?<\/h3>\n<p class=\"isSelectedEnd\">The applicable Indian Standard is <strong>IS 3024:2015 \u2013 Cold Rolled Grain Oriented Electrical Steel Strip and Sheet Delivered in Fully Processed State<\/strong>.<\/p>\n<h3>What is CRGO used for?<\/h3>\n<p class=\"isSelectedEnd\">CRGO is mainly used for transformer cores and other magnetic circuits requiring high magnetic performance.<\/p>\n<h3>What tests are required for CRGO steel?<\/h3>\n<p class=\"isSelectedEnd\">The main tests include <strong>specific core loss, magnetic polarization, surface insulation resistance, stacking factor, ductility, thickness, width, length, flatness, edge camber and burr height<\/strong>.<\/p>\n<h3>What is the difference between conventional and high-permeability CRGO?<\/h3>\n<p class=\"isSelectedEnd\">They are different product classifications under the BIS grouping framework, with different specified magnetic-performance characteristics.<\/p>\n<h3>What is domain-refined CRGO?<\/h3>\n<p class=\"isSelectedEnd\">Domain refinement is a process\/condition used for applicable high-permeability electrical-steel grades to improve magnetic performance; the BIS Product Manual recognises domain-refined and non-domain-refined conditions for applicable grades.<\/p>\n<h3>How do I get an ISI Mark for CRGO steel?<\/h3>\n<p class=\"isSelectedEnd\">A manufacturer must obtain the applicable BIS licence for IS 3024:2015 and comply with its testing, factory, marking and continuing-conformity requirements.<\/p>\n<h1>Related BIS Certification Services<\/h1>\n<ul data-spread=\"false\">\n<li>BIS Certification for Cold Rolled Non-Oriented Electrical Steel \u2013 IS 648:2022<\/li>\n<li>BIS Certification for Transformer Core Materials<\/li>\n<li>BIS Certification for Electrical Steel Sheet<\/li>\n<li>BIS Certification for Electrical Steel Strip<\/li>\n<li>BIS Certification for Transformer Laminations<\/li>\n<li>BIS Certification for Steel Products<\/li>\n<li>BIS Certification for Special Steel Products<\/li>\n<li>BIS &amp; ISI Mark Certification<\/li>\n<li>BIS Factory Inspection Assistance<\/li>\n<li>BIS Testing Coordination<\/li>\n<li>BIS Certification Consultancy<\/li>\n<\/ul>\n<h1>Conclusion<\/h1>\n<p class=\"isSelectedEnd\"><strong>IS 3024:2015 \u2013 Cold Rolled Grain Oriented Electrical Steel Strip and Sheet Delivered in Fully Processed State<\/strong> is an important Indian Standard for CRGO electrical steel used in transformer cores and other magnetic circuits.<\/p>\n<p class=\"isSelectedEnd\">The current BIS Product Manual, revised in <strong>March 2025<\/strong>, operates under <strong>Scheme-I<\/strong> and records <strong>three amendments<\/strong> to the standard. It defines certification scope through parameters such as grade, condition, dimensions and applicable product characteristics.<\/p>\n<p class=\"isSelectedEnd\">The latest framework classifies CRGO into <strong>conventional and high-permeability grades<\/strong> and considers nominal thickness, maximum specific total loss, domain refinement and delivery condition for grouping. The current Product Manual provides detailed grouping provisions so that suitable representative grades can cover specified related grades within the same group.<\/p>\n<p class=\"isSelectedEnd\">Testing is a critical part of certification and includes <strong>specific core loss, magnetic polarization, surface insulation resistance, stacking factor, ductility, thickness, width, length, flatness, edge camber, burr height and other dimensional and surface requirements<\/strong>.<\/p>\n<p class=\"isSelectedEnd\">The current BIS requirements also place significant importance on factory testing. Thickness, width, length, edge camber, flatness, burr height, residual curvature, surface condition, suitability for cutting and workmanship are identified for testing on full-width coils during factory testing.<\/p>\n<p class=\"isSelectedEnd\">Amendment No. 3 introduced important changes, including <strong>18CG100, 20HP70d and 20HP75d<\/strong>, and BIS required implementation by <strong>13 July 2025<\/strong>. Manufacturers applying for certification today should therefore ensure that their specifications, testing procedures and licence scope are aligned with the latest applicable version of the standard.<\/p>\n<p class=\"isSelectedEnd\">The <strong>Steel and Steel Products (Quality Control) Order, 2024<\/strong> includes IS 3024:2015 and lists <strong>ITC (HS) Codes 72251100 and 72261100<\/strong>, with implementation specified as <strong>with immediate effect<\/strong>.<\/p>\n<p class=\"isSelectedEnd\">Current BIS LIMS listings show laboratory-specific CRGO testing charges, including examples of <strong>\u20b927,735<\/strong> and <strong>\u20b920,100<\/strong> for different laboratory scopes. These are testing charges only and should not be treated as the complete BIS certification cost.<\/p>\n<p class=\"isSelectedEnd\">For manufacturers, successful CRGO BIS certification requires careful planning of the <strong>grade, nominal thickness, product grouping, delivery condition, magnetic test method, sample preparation, magnetic-property testing, surface insulation, dimensional inspection, quality-control system, calibration and factory-testing facilities<\/strong>.<\/p>\n<p class=\"isSelectedEnd\"><strong>Qualitance India<\/strong> provides end-to-end <strong>BIS Certification Consultancy for Grain Oriented Electrical Steel Sheet and Strip (CRGO) as per IS 3024:2015<\/strong>, including product assessment, grade and grouping review, sample preparation, laboratory testing coordination, BIS application support, factory inspection preparation and BIS licence assistance.<\/p>\n<p class=\"isSelectedEnd\"><strong>For BIS Certification and ISI Mark Consultancy for CRGO Electrical Steel, contact Qualitance India today.<\/strong><\/p>\n<p><strong>Phone:<\/strong> +91 93106 15170<br \/>\n<strong>Email:<\/strong> <a href=\"mailto:info@qualitanceindia.com\">info@qualitanceindia.com<\/a><br \/>\n<strong>Website:<\/strong> qualitanceindia.com<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Introduction Grain Oriented Electrical Steel, commonly known as CRGO Steel, is a specialised electrical steel used mainly for manufacturing transformer cores and other magnetic circuits. Its carefully controlled magnetic properties allow electrical equipment manufacturers to achieve lower core losses and high magnetic performance in the rolling direction. In India, IS 3024:2015 \u2013 Cold Rolled Grain [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":3598,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_forum_subforum_count":0,"inline_featured_image":false,"slim_seo":{"title":"BIS Certification Consultancy for Grain Oriented Electrical Steel Sheet & Strip (CRGO) | IS 3024:2015 | BIS & ISI Mark Certification - Qualitance India","description":"Introduction Grain Oriented Electrical Steel, commonly known as CRGO Steel , is a specialised electrical steel used mainly for manufacturing transformer cores a"},"_slim_seo_primary_term_category":0,"_slim_seo_primary_term_post_tag":0,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-3597","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"_links":{"self":[{"href":"https:\/\/qualitanceindia.com\/wp-json\/wp\/v2\/posts\/3597","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/qualitanceindia.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/qualitanceindia.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/qualitanceindia.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/qualitanceindia.com\/wp-json\/wp\/v2\/comments?post=3597"}],"version-history":[{"count":1,"href":"https:\/\/qualitanceindia.com\/wp-json\/wp\/v2\/posts\/3597\/revisions"}],"predecessor-version":[{"id":3599,"href":"https:\/\/qualitanceindia.com\/wp-json\/wp\/v2\/posts\/3597\/revisions\/3599"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/qualitanceindia.com\/wp-json\/wp\/v2\/media\/3598"}],"wp:attachment":[{"href":"https:\/\/qualitanceindia.com\/wp-json\/wp\/v2\/media?parent=3597"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/qualitanceindia.com\/wp-json\/wp\/v2\/categories?post=3597"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/qualitanceindia.com\/wp-json\/wp\/v2\/tags?post=3597"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}