BIS Certification Consultant for Fusion Bonded Epoxy Coated Reinforcing Bars | IS 13620:1993 | Qualitance India

BIS Certification Consultant for Fusion Bonded Epoxy Coated Reinforcing Bars | IS 13620:1993 | Qualitance India

Introduction

Fusion bonded epoxy coated reinforcing bars are steel reinforcement bars protected with an epoxy coating to help reduce corrosion in concrete structures. They are particularly relevant in environments where reinforcement may be exposed to moisture, chlorides, saline conditions or industrial pollution. The Indian Standard IS 13620:1993 – Fusion Bonded Epoxy Coated Reinforcing Bars — Specification establishes requirements for epoxy-coated reinforcing bars, including coating characteristics, surface preparation, adhesion, bond strength, chemical resistance and other performance properties. The reinforcing steel used as the base material is required to conform to IS 1786, as specified by the applicable product requirements. <Cite refs={["turn514563search23","turn514563search24"]}/> For manufacturers, obtaining BIS certification involves more than applying an epoxy coating to steel bars. The manufacturing process, coating materials, inspection facilities, testing arrangements and product traceability must be aligned with the applicable Indian Standard and BIS certification requirements. Qualitance India provides BIS Certification Consultancy for Fusion Bonded Epoxy Coated Reinforcing Bars, supporting manufacturers with documentation, product-scope planning, testing coordination and factory inspection preparation.

What Are Fusion Bonded Epoxy Coated Reinforcing Bars?

Fusion bonded epoxy coated reinforcing bars are deformed steel reinforcement bars on which a protective epoxy powder coating is applied using an electrostatic spray process. The coating is fused to the prepared steel surface to create a protective layer. The objective is to reduce corrosion-related deterioration of reinforcement in concrete structures. Coating quality is important because damage, discontinuities or inadequate adhesion may compromise the intended protective function. These bars may be considered for applications such as:

• Bridges and flyovers
• Marine and coastal structures
• Concrete structures in saline environments
• Industrial facilities exposed to corrosive conditions
• Infrastructure projects where corrosion protection is specified by the designer or purchaser

The suitability of epoxy-coated reinforcement depends on the project specification, exposure conditions and applicable construction requirements.

What Is IS 13620:1993?

IS 13620:1993 is the Indian Standard titled Fusion Bonded Epoxy Coated Reinforcing Bars — Specification. The standard addresses the requirements for applying and assessing the epoxy coating on reinforcing steel bars. The BIS Product Manual published for this standard identifies the following important areas:

• Requirements for reinforcing steel and coating material
• Surface preparation before coating
• Application of the epoxy coating
• Coating thickness and uniformity
• Continuity of coating
• Adhesion of coating
• Bond strength to concrete
• Chemical resistance
• Resistance to applied voltage
• Impact, hardness and abrasion resistance
• Chemical testing of reinforcing steel
• Product marking and inspection records

<Cite refs={["turn565030view1","turn514563search24"]}/> The current BIS product manual is an important reference for understanding the certification process, product grouping, sample quantities and inspection and testing arrangements.

Is BIS Certification Mandatory for Epoxy Coated Reinforcing Bars?

BIS identifies IS 13620:1993 in its Scheme-I product-certification listing. The product is also covered by the regulatory framework for steel products, including the Steel and Steel Products (Quality Control) Order. <Cite refs={["turn514563search9","turn358099search8"]}/> The precise legal obligations for a manufacturer, importer or supplier should be confirmed against the latest applicable Quality Control Order, amendments, exemptions and BIS notifications before manufacturing or placing the product on the market. The BIS standards portal also records a first-revision project for IS 13620:1993. The project is shown as under development in the standards-formulation records reviewed for this article. Manufacturers should therefore confirm the current published edition, applicable amendments and transition requirements with BIS before applying. <Cite refs={["turn358099search0","turn358099search26"]}/>

Applicable BIS Certification Scheme

The relevant certification route listed by BIS is Scheme-I, under which the manufacturer applies for a licence to use the BIS Standard Mark on conforming products. <Cite refs={["turn514563search9","turn565030view1"]}/> The certification process generally includes:

1. Identifying the applicable Indian Standard and product requirements.
2. Reviewing the manufacturing process and coating facilities.
3. Defining the proposed bar-size range for the licence.
4. Preparing company, manufacturing and quality-control documents.
5. Arranging sample testing as required by BIS.
6. Submitting the application and applicable fees.
7. Preparing for factory assessment and demonstrating production controls.
8. Responding to any observations raised during the process.
9. Obtaining the BIS licence before applying the Standard Mark to products covered by it.

The exact requirements and processing time depend on the application, the manufacturing unit and BIS's assessment.

Product Scope and Bar Sizes Under IS 13620:1993

The BIS Product Manual identifies fusion bonded epoxy coated reinforcing bars in sizes from 6 mm to 50 mm. It divides the sizes into two groups for licence-scope consideration. <Cite refs={["turn565030view1"]}/>

Group	Size range
Group I	Up to and including 20 mm
Group II	Above 20 mm, up to the covered maximum size

Under the grouping guideline in the referenced product manual, the highest size in each group is tested for the specified requirements to cover sizes within that group. The manufacturer must declare the sizes intended for inclusion in the licence, and BIS may restrict the scope based on the manufacturer's manufacturing and testing capabilities. <Cite refs={["turn565030view1"]}/> The actual licence scope must be confirmed against the current product manual and applicable BIS instructions. Manufacturers should not assume that all sizes are automatically covered merely because one size has been tested.

Raw Materials Required

The quality of the finished epoxy-coated reinforcing bar depends on both the base steel and the coating material.

1. Reinforcing steel

The BIS Product Manual identifies reinforcing steel conforming to IS 1786 as the base material. The manufacturer should maintain appropriate records for incoming steel, including identification and traceability. <Cite refs={["turn565030view1"]}/> The manual also refers to ISI-marked reinforcing bars and segregation of the received steel lot or cast.

2. Epoxy coating material

The coating material must meet the applicable requirements of IS 13620:1993, including the relevant clauses and annexes referenced in the product manual. Manufacturers should maintain records for coating-material specifications, supplier details, incoming inspection and applicable test results.

3. Storage and handling

Steel bars and coating powder should be stored and handled in a manner that prevents contamination, damage and deterioration. The manufacturing process should protect the prepared steel surface and finished coating from avoidable damage.

Manufacturing Process for Fusion Bonded Epoxy Coated Reinforcing Bars

A typical production process involves the following stages, subject to the manufacturer's process and the applicable standard.

Step 1: Inspection of incoming reinforcing steel

Incoming bars are checked against the relevant material requirements. Records should allow the manufacturer to identify the source and production lot of the base steel.

Step 2: Surface preparation

The steel surface is prepared before coating to achieve the required condition for coating application. Surface preparation is a critical control point because contamination or inadequate preparation can affect coating adhesion and performance.

Step 3: Electrostatic application of epoxy powder

Epoxy powder is applied to the prepared steel bars using an electrostatic spray process in accordance with the applicable manufacturing procedure.

Step 4: Fusion and coating formation

The applied powder is fused under controlled process conditions to form the protective coating. The manufacturer should establish and document appropriate process controls.

Step 5: Inspection of the finished coating

The coated bars are inspected for the characteristics required by the standard, including thickness, continuity and adhesion.

Step 6: Testing and release

Required tests are performed according to the applicable inspection and testing plan. Conforming bars are identified and released with the relevant records. The precise process parameters, acceptance criteria and test methods must be taken from the applicable edition of IS 13620 and the manufacturer's approved procedures.

Testing Requirements for IS 13620:1993

Testing verifies that the coated reinforcing bars meet the required material and coating-performance characteristics.

1. Coating thickness and uniformity

The coating is assessed for thickness and uniformity according to the specified method. The BIS Product Manual identifies one full-length coated bar as the sample for coating thickness and uniformity assessment. <Cite refs={["turn565030view1"]}/>

2. Continuity of coating

Continuity testing helps identify discontinuities or uncoated areas in the protective layer. The product manual lists a holiday detector and coating meter among the relevant equipment. <Cite refs={["turn565030view1"]}/>

3. Adhesion of coating

The adhesion test evaluates how well the coating remains attached to the steel under the prescribed test conditions. Surface preparation and coating application are important factors affecting this property.

4. Bond strength to concrete

Bond-strength testing evaluates the interaction between the coated reinforcing bar and concrete. This is important because the reinforcement must perform its intended structural function within the concrete member.

5. Chemical resistance

Chemical-resistance testing assesses the coating's performance under the exposure conditions specified in the standard. The product manual identifies test materials and equipment associated with the relevant chemical-resistance requirements. <Cite refs={["turn565030view1"]}/>

6. Resistance to applied voltage

This test assesses the coating's resistance to the prescribed electrical test conditions. The manual identifies a non-conductive test vessel, electrodes, electrolyte and a suitable power source among the relevant equipment. <Cite refs={["turn565030view1"]}/>

7. Impact test

Impact testing evaluates the coating's resistance to the specified impact conditions.

8. Hardness test

The hardness test checks the relevant coating characteristic using the prescribed test method.

9. Abrasion resistance

Abrasion-resistance testing evaluates the coating's ability to withstand the specified abrasive action.

10. Chemical testing of reinforcing steel

The chemical composition of the reinforcing steel is assessed according to the applicable requirements and test methods. The exact acceptance limits and procedures should be checked in the current standard. A list of test areas alone does not establish conformity; the prescribed methods and acceptance criteria must be followed.

Sample Requirements for BIS Testing

The BIS Product Manual for IS 13620:1993 provides the following sample quantities. <Cite refs={["turn565030view1"]}/>

Test	Sample quantity specified in the manual
Coating thickness and uniformity	1 full-length coated bar
Bond strength	2 coated bars of 1 metre each and 2 uncoated bars of 1 metre each
Chemical resistance, adhesion, impact, hardness, abrasion resistance and resistance to applied voltage	12 pieces, each 1 metre long
Chemical testing	5 bar pieces, each 5 cm long

These quantities are taken from the referenced BIS Product Manual. Before dispatching samples, confirm the current sample instructions, test requirements and any additional directions from BIS or the designated testing laboratory.

Laboratory and Testing Equipment Requirements

The manufacturer should establish suitable testing arrangements and maintain the equipment needed for the tests assigned to the factory laboratory. The BIS Product Manual lists equipment and facilities associated with testing, including:

• Digital coating-thickness meter
• Holiday detector for continuity testing
• Equipment for coating-adhesion testing
• Pull-out testing machine and suitable measuring apparatus for bond strength
• Equipment for abrasion-resistance testing
• Impact-testing apparatus
• Hardness tester
• Equipment and materials for chemical-resistance testing
• Appropriate chemical-testing arrangements for reinforcing steel

<Cite refs={["turn565030view1"]}/> The equipment list in the product manual is indicative and should be read with the applicable standard and testing requirements. The manufacturer should maintain a calibration plan and appropriate test records. Where subcontract testing is proposed, confirm that the test is permitted to be subcontracted and that the laboratory meets the applicable BIS requirements.

Factory Inspection and Quality-Control Requirements

BIS certification involves assessment of whether the manufacturer can consistently produce conforming epoxy-coated reinforcing bars. The referenced Product Manual states that the factory laboratory should be suitably equipped and staffed, that a calibration plan should be prepared, and that test records should be maintained. It also describes a control unit based on bars produced using the same coating material under similar manufacturing conditions within eight hours. <Cite refs={["turn565030view1"]}/> Manufacturers should prepare for inspection by ensuring the following:

• Incoming steel and coating materials are identifiable and traceable.
• Surface preparation and coating application are controlled.
• Coating thickness and continuity checks are performed as required.
• Adhesion and other prescribed tests are documented.
• Testing equipment is maintained and calibrated.
• Production batches and control units are defined and recorded.
• Nonconforming products are identified and controlled.
• Product marking and records comply with the applicable standard and licence requirements.

The actual inspection procedure, test frequency and acceptance requirements are governed by the applicable BIS certification documents.

Documents Required for BIS Certification

The following checklist can help manufacturers prepare for a BIS application. The final document list should be confirmed against the current BIS application requirements.

Company documents

• Business registration or incorporation documents, as applicable
• PAN and GST registration, where applicable
• Manufacturing-unit address and contact details
• Authorisation for the person signing the application
• Details of the authorised signatory

Manufacturing documents

• Manufacturing process flow chart
• Details of surface-preparation facilities
• Details of epoxy powder application and fusion facilities
• Machinery and equipment list
• Details of proposed bar sizes and production capacity
• Raw-material supplier details and specifications

Quality-control documents

• Quality-control procedures and inspection formats
• Incoming steel inspection records
• Coating-material inspection records
• Production and batch records
• Coating thickness and continuity records
• Adhesion and other test records, where available
• Equipment calibration plan and certificates
• Procedures for handling nonconforming products
• Product identification and traceability records

Testing arrangements

• Details of the in-house laboratory
• List of relevant testing equipment
• Details of competent testing personnel
• External laboratory details, where subcontract testing is proposed
• Records demonstrating the manufacturer's current testing capability

Additional documents may be required depending on the application, the manufacturing setup and BIS observations.

Common Challenges in BIS Certification

Manufacturers may face delays if the product scope, manufacturing arrangements or testing documentation is incomplete. Common challenges include:

• Unclear declaration of the intended bar-size range
• Inadequate records for reinforcing steel or coating material
• Inconsistent surface preparation or coating application
• Failure to demonstrate coating thickness and continuity control
• Inadequate testing arrangements for adhesion or bond strength
• Missing calibration records or incomplete test documentation
• Poor traceability between production lots and inspection records
• Failure to confirm the latest edition of the standard and applicable QCO provisions

A pre-application review can help identify gaps before the formal certification process begins.

How Qualitance India Can Help

Qualitance India provides BIS Certification Consultancy for Fusion Bonded Epoxy Coated Reinforcing Bars as per IS 13620:1993. Our consultancy support can include:

• Review of product and standard applicability
• Guidance on proposed bar sizes and licence scope
• Review of manufacturing and coating-process documentation
• Preparation and review of BIS application documents
• Guidance on quality-control and laboratory arrangements
• Sample-testing coordination
• Review of test documentation and traceability records
• Preparation for BIS factory inspection
• Support in addressing observations raised during the application process
• Guidance on applicable marking and ongoing compliance requirements

The consultancy scope is finalised according to the manufacturer's requirements and the services agreed for the project. BIS retains authority over application scrutiny, testing acceptance, factory assessment and licence decisions.

Frequently Asked Questions (FAQs)

1. What is IS 13620:1993?

IS 13620:1993 is the Indian Standard for Fusion Bonded Epoxy Coated Reinforcing Bars. It covers requirements relating to the epoxy coating, reinforcing steel, testing and product conformity.

2. Is BIS certification required for fusion bonded epoxy coated reinforcing bars?

IS 13620:1993 appears in the BIS Scheme-I product list and the steel-product regulatory framework. Manufacturers should verify the latest Quality Control Order, amendments and applicable exemptions before manufacturing or selling covered products. <Cite refs={["turn514563search9","turn358099search8"]}/>

3. What bar sizes are covered by the product manual?

The referenced BIS Product Manual identifies sizes from 6 mm to 50 mm, divided into Group I up to and including 20 mm and Group II above 20 mm. The actual licence scope is subject to BIS assessment. <Cite refs={["turn565030view1"]}/>

4. Which tests are important for IS 13620:1993?

Important test areas include coating thickness, coating continuity, adhesion, bond strength to concrete, chemical resistance, resistance to applied voltage, impact, hardness, abrasion resistance and chemical testing of the reinforcing steel.

5. Can a manufacturer use one tested bar size to cover other sizes?

The referenced product manual provides grouping guidelines under which the highest size in each size group is tested to cover the group, subject to the applicable requirements. BIS may restrict the scope according to manufacturing and testing capabilities. <Cite refs={["turn565030view1"]}/>

6. Is an in-house laboratory required?

The referenced inspection and testing plan states that a suitably equipped and staffed laboratory should be maintained. The exact factory testing and permitted subcontract-testing arrangements should be checked against the current BIS requirements. <Cite refs={["turn565030view1"]}/>

7. Is IS 13620:1993 being revised?

BIS's standards-formulation records show a first-revision project for IS 13620:1993. Applicants should check the official BIS standards portal for publication status, amendments and transition requirements before applying. <Cite refs={["turn358099search0","turn358099search26"]}/>

8. How long does BIS certification take?

The timeline depends on documentation readiness, product testing, factory assessment and closure of observations. A reliable estimate can be made after reviewing the manufacturing unit and proposed product scope.

9. Can Qualitance India help with ISI Mark certification?

Yes. Qualitance India can support manufacturers with product-scope assessment, application documentation, testing coordination and factory inspection preparation for BIS certification.

Official References

1. BIS Product Manual for IS 13620:1993: Fusion Bonded Epoxy Coated Reinforcing Bars
2. BIS Scheme-I Product List: Products Under Compulsory Certification
3. BIS Product-Specific Guidelines: Official BIS Guidelines
4. BIS Standards Portal: Know Your Standard
5. Steel and Steel Products (Quality Control) Order, 2024: Ministry of Steel – Official Order
6. IS 13620 Revision Project: BIS Standards Formulation Record

Always verify the latest applicable Indian Standard, amendments, Quality Control Order provisions and BIS application requirements before proceeding with certification.

Conclusion

Fusion bonded epoxy coated reinforcing bars play an important role in corrosion protection for concrete infrastructure. Compliance with IS 13620:1993 requires appropriate reinforcing steel, controlled surface preparation and coating application, reliable testing arrangements, traceability and documented quality control. Manufacturers planning to obtain BIS certification should confirm the current standard edition, applicable legal requirements and proposed licence scope before starting the application process. Qualitance India supports manufacturers seeking BIS Certification for Fusion Bonded Epoxy Coated Reinforcing Bars as per IS 13620:1993, including documentation, testing coordination and factory inspection preparation. Qualitance India – Improving Quality & Competence Call/WhatsApp: +91 9310615170 Email: info@qualitanceindia.com Website: https://qualitanceindia.com