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BIS Certification for Masonry Cement | IS 3466:2026 (Earlier IS 3466:1988) – Qualitance India

BIS Certification for Masonry Cement | IS 3466:2026 (Earlier IS 3466:1988) – Qualitance India

Important Update: IS 3466:1988 Superseded by IS 3466:2026

The earlier standard IS 3466:1988 — Specification for Masonry Cement (Second Revision) was withdrawn on 20 September 2026 and superseded by IS 3466:2026 — Masonry Cement — Specification (Third Revision). BIS lists Masonry Cement under its mandatory Scheme-I certification framework. Manufacturers planning a new application should therefore use the current standard, IS 3466:2026, and obtain the latest product manual and applicable testing instructions from BIS. <Cite refs={["turn557823search0","turn557823search15","turn557823search3","turn557823search1"]}/> The technical test values and sample requirements discussed below from the older 1988 product manual are provided as historical reference only. They must not be assumed to be the complete or current requirements under IS 3466:2026.

1. Introduction

Masonry Cement is a specialised type of cement primarily used for masonry mortar applications, including brickwork, stonework, concrete block masonry, rendering and plastering. Unlike Ordinary Portland Cement (OPC), which is widely used in structural concrete applications, Masonry Cement is formulated to produce mortar with good workability, plasticity, cohesion and water retention. These characteristics make it suitable for masonry and finishing applications. In India, Masonry Cement is covered under the Indian Standard IS 3466 — Masonry Cement — Specification. The earlier edition was IS 3466:1988. BIS published the third revision, IS 3466:2026, which superseded the earlier edition on 20 September 2026. <Cite refs={["turn557823search0","turn557823search15","turn557823search3"]}/> Manufacturers intending to manufacture or sell Masonry Cement in India must comply with the applicable BIS certification requirements and obtain the appropriate licence to use the ISI Standard Mark. This article explains the certification framework, product characteristics, testing considerations, manufacturing controls, documents and BIS application process.

2. What Is Masonry Cement?

Masonry Cement is a blended cement product designed for use in masonry mortar and related construction applications. The BIS cement compendium describes Masonry Cement as a product obtained either by:
  • Intimately intergrinding Portland cement clinker with pozzolanic materials, non-pozzolanic or inert materials, gypsum and an air-entraining plasticizer, if required, in suitable proportions; or
  • Intimately and uniformly blending Ordinary Portland Cement with finely ground materials so that the resulting product conforms to the requirements of the applicable standard.
Materials described in the earlier BIS compendium include fly ash, calcined clay pozzolana, limestone, dolomitic limestone, dolomite, granulated slag and certain waste materials such as carbonated sludge and mine tailings. <Cite refs={["turn557823search16"]}/> The product is designed to provide mortar with:
  • Good workability.
  • Plasticity and cohesion.
  • Adequate water retention.
  • Suitable setting characteristics.
  • Required compressive strength.
  • Consistent performance in masonry applications.
The precise permitted ingredients, proportions and performance requirements must be checked against IS 3466:2026.

3. Is BIS Certification Mandatory for Masonry Cement?

Yes. Masonry Cement is listed by BIS under Scheme-I (ISI Mark Scheme) as a product requiring mandatory certification. The BIS Scheme-I list specifically identifies:
Particular Details
Product Masonry Cement
Indian Standard IS 3466
Certification scheme Scheme-I
Certification mark ISI Standard Mark
Certification authority Bureau of Indian Standards
Licence holder Eligible manufacturing unit
BIS lists Masonry Cement alongside other regulated cement varieties, including OPC, Portland Pozzolana Cement, Portland Slag Cement and White Portland Cement. <Cite refs={["turn557823search1","turn557823search2"]}/>

Regulatory framework

The Cement (Quality Control) Order, 2003 established mandatory quality-control requirements for cement varieties covered by the order. BIS's current Scheme-I listing continues to identify IS 3466 for Masonry Cement under the cement compulsory-certification framework. <Cite refs={["turn557823search1","turn557823search2"]}/>

What does this mean for manufacturers?

Manufacturers must:
  1. Manufacture Masonry Cement in conformity with the current applicable Indian Standard.
  2. Maintain the required manufacturing and laboratory facilities.
  3. Establish quality-control and inspection arrangements.
  4. Obtain the applicable BIS licence.
  5. Use the Standard Mark only in accordance with the valid licence and approved scope.
  6. Maintain production, testing, packing and marking records.
A laboratory test report alone does not authorise a manufacturer to use the ISI Mark.

4. Applications of Masonry Cement

Masonry Cement is primarily intended for general masonry work where mortar is required. Typical applications include:

4.1 Brick masonry

Used for preparing mortar for brickwork in residential, commercial and other building construction.

4.2 Stone masonry

Used in mortar for stonework and related masonry applications.

4.3 Concrete block masonry

Suitable for mortar used in concrete block construction.

4.4 Rendering and plastering

Used for rendering and plastering applications where workable and cohesive mortar is required.

4.5 Repair and restoration work

May be used for suitable masonry repair and restoration applications, subject to project specifications and compatibility requirements.

Important limitation

Masonry Cement is not intended for structural concrete, flooring, foundations, reinforced concrete or prestressed concrete works. Manufacturers and users should not market or use it as a substitute for OPC or other cement specifically intended for structural concrete applications. <Cite refs={["turn557823search17","turn557823search16"]}/>

5. Manufacturing Process of Masonry Cement

The manufacturing route may involve intergrinding or blending, depending on the permitted composition and process requirements. A typical manufacturing sequence includes:

Step 1: Raw material selection

Selection of Portland cement clinker, gypsum, permitted pozzolanic or inert materials and other permitted constituents.

Step 2: Raw material inspection

Verification of incoming materials against the applicable specifications and approved supplier requirements.

Step 3: Proportioning and batching

Materials are proportioned according to the manufacturer's approved formulation and the requirements of the applicable standard.

Step 4: Grinding or blending

The selected materials are interground or uniformly blended to achieve the required fineness and product characteristics.

Step 5: Quality-control testing

The finished cement is tested for the applicable physical and other performance requirements.

Step 6: Storage

The finished product is stored in suitable silos or containers to prevent moisture ingress and contamination.

Step 7: Packing and dispatch

The cement is packed in suitable bags or containers with the prescribed product and BIS marking, where applicable. This is a general manufacturing overview. The exact manufacturing and formulation requirements must be verified against IS 3466:2026.

6. Raw Material Requirements

Raw material conformity is important because the composition of Masonry Cement influences its workability, strength, setting behaviour and other performance characteristics. The older BIS product manual for IS 3466:1988 specifically identifies Portland Cement Clinker conforming to IS 16353 as the raw material reference. <Cite refs={["turn198049search23"]}/> The earlier BIS compendium describes materials that may be used in Masonry Cement, including:
  • Portland cement clinker.
  • Gypsum, natural or chemical.
  • Fly ash.
  • Calcined clay pozzolana.
  • Limestone.
  • Dolomitic limestone.
  • Dolomite.
  • Granulated slag.
  • Other permitted inert or waste materials.
  • Air-entraining plasticizer, where required.
<Cite refs={["turn557823search16"]}/>

Raw material documentation

Manufacturers should maintain:
  • Raw material specifications.
  • Supplier details.
  • Material test certificates.
  • Incoming inspection reports.
  • Batch identification and traceability.
  • Material proportioning records.
  • Approved formulation details.
  • Relevant test reports.
Important: The permissible constituents, percentage limits and conformity requirements must be established from IS 3466:2026. The ingredient list from the earlier edition should not be treated as an automatic approval of every material or proportion under the new edition.

7. Technical and Physical Requirements of Masonry Cement

The earlier IS 3466:1988 standard specified several physical requirements intended to ensure the suitability of Masonry Cement for mortar applications. The BIS cement compendium reproduces the following requirements from the older edition:
Characteristic Requirement under the older edition
Fineness — residue on 45-micron IS sieve, maximum 15%
Initial setting time, minimum 90 minutes
Final setting time, maximum 1440 minutes
Soundness — Le-Chatelier method, maximum 10 mm
Soundness — Autoclave method, maximum 1%
Compressive strength at 7 days, minimum 2.5 MPa
Compressive strength at 28 days, minimum 5 MPa
Air content, minimum 6%
Water retention, minimum 60%
The older strength requirements are based on the average compressive strength of at least three 50 mm mortar cubes prepared using one part Masonry Cement and three parts standard sand by volume. The standard sand was required to conform to IS 650. <Cite refs={["turn557823search16"]}/> Critical: These figures are reproduced from the earlier standard's requirements. Since IS 3466:1988 was withdrawn on 20 September 2026, manufacturers must verify the corresponding limits and any revised test provisions in IS 3466:2026 before using them for certification or product release.

8. Testing Requirements for Masonry Cement

The older BIS product manual for IS 3466:1988 identifies the following tests as possible to complete in one day:
  1. Fineness.
  2. Setting time.
  3. Air content.
  4. Water retention.
<Cite refs={["turn198049search23"]}/> The earlier standard and BIS compendium also identify soundness and compressive strength as important physical requirements. <Cite refs={["turn557823search16"]}/>

8.1 Fineness test

Fineness is assessed by determining the residue on the specified 45-micron IS sieve using the prescribed wet-sieving method under the earlier edition.

8.2 Setting-time test

Setting-time testing determines the initial and final setting characteristics of the cement paste. The earlier product manual identifies setting-time testing as one of the tests possible to complete in one day.

8.3 Soundness test

Soundness testing evaluates the volume stability of cement. The earlier edition identifies:
  • Le-Chatelier method.
  • Autoclave test method.

8.4 Compressive-strength test

Compressive-strength testing evaluates the strength of mortar prepared using Masonry Cement and standard sand. The older edition specifies testing at 7 days and 28 days.

8.5 Air-content test

Air content is an important characteristic of Masonry Cement because air entrainment contributes to mortar workability and other performance characteristics.

8.6 Water-retention test

Water retention measures the ability of mortar to retain water after suction. It is important for mortar workability and application on masonry surfaces.

8.7 False-set requirement

The older standard also contains a provision for cement exhibiting false set. The relevant penetration ratio and subsequent setting-time requirements must be assessed according to the prescribed method. Testing note: The above descriptions explain the earlier standard. The current test methods, acceptance limits, optional requirements and test equipment under IS 3466:2026 must be checked from the revised standard and updated BIS product manual.

9. Sample Requirements for BIS Certification

The BIS product manual issued in January 2019 for IS 3466:1988 specifies the following sample requirement: <badge color="info">Earlier product manual</badge>
Product Sample quantity
Masonry Cement 10 kg
The older manual also states that conformity of raw material to the relevant Indian Standard is to be ensured at the time of Grant of Licence. <Cite refs={["turn198049search23"]}/>

Sample requirements under IS 3466:2026

The 10 kg sample quantity is taken from the earlier product manual. It should not automatically be assumed to be the current sampling requirement under IS 3466:2026. Before dispatching samples, manufacturers should confirm:
  • Current sample quantity.
  • Required packaging and identification.
  • Whether separate samples are required for different product formulations.
  • Applicable chemical and physical testing.
  • Raw material conformity evidence.
  • Laboratory submission requirements.
  • Any additional samples requested by BIS.

Product grouping

The earlier BIS product manual specifies that product grouping guidelines are not applicable under IS 3466:1988. <Cite refs={["turn198049search23"]}/> However, manufacturers must confirm whether the 2026 revision or updated BIS certification instructions introduce any changes in product scope, formulation or sampling.

10. Laboratory Requirements for Masonry Cement

The manufacturer must establish suitable testing arrangements for the tests required by the applicable standard and BIS certification scheme. The earlier BIS product manual identifies test equipment in Annex A and the Scheme of Inspection and Testing in Annex B. <Cite refs={["turn198049search23"]}/> Based on the tests identified in the earlier standard, the laboratory may require equipment such as:

Fineness testing

  • 45-micron IS sieve.
  • Weighing balance.
  • Wet-sieving apparatus and accessories.

Setting-time testing

  • Vicat apparatus.
  • Setting-time needles.
  • Moulds.
  • Stopwatch and accessories.

Soundness testing

  • Le-Chatelier apparatus.
  • Autoclave equipment.
  • Measuring accessories.

Compressive-strength testing

  • 50 mm cube moulds.
  • Mortar mixing equipment.
  • Standard sand conforming to IS 650.
  • Curing arrangements.
  • Compressive-strength testing machine.

Air-content testing

  • Air-content testing apparatus.
  • Mortar preparation and measuring equipment.

Water-retention testing

  • Water-retention testing apparatus.
  • Flow measurement accessories.
  • Mortar preparation equipment.
This is an indicative equipment overview based on the earlier test requirements. The final equipment list, accuracy and calibration requirements must be confirmed against IS 3466:2026 and its current product manual.

11. Scheme of Inspection and Testing

The earlier BIS product manual PM/IS 3466/1/January 2019 contains a Scheme of Inspection and Testing in Annex B. It provides the inspection and test arrangements for Masonry Cement under the earlier edition. <Cite refs={["turn198049search23"]}/> The manufacturer should maintain an appropriate quality-control system covering:
  • Raw material inspection.
  • Material proportioning and batching.
  • Grinding and blending controls.
  • Finished-product sampling.
  • Physical testing.
  • Product identification and traceability.
  • Packing and marking.
  • Calibration and equipment maintenance.
  • Non-conformity management.
  • Test records and production records.
The applicable test frequencies and levels of control must be obtained from the current BIS product manual for IS 3466:2026. Do not use the earlier 2019 manual's inspection frequencies as the current mandatory schedule without confirmation.

12. Documents Required for BIS Certification

The following is a practical document-preparation checklist for a Masonry Cement manufacturing unit.

A. Company and factory documents

  • Company registration or constitution documents.
  • Manufacturing-unit address and contact details.
  • Factory layout.
  • Manufacturing-process flow chart.
  • Details of production machinery.
  • Grinding and blending equipment details.
  • Production capacity.
  • Details of technical and quality-control personnel.

B. Raw material documents

  • Portland cement clinker specifications.
  • Gypsum specifications and test certificates.
  • Details of permitted pozzolanic or inert materials.
  • Performance-improver details, where applicable.
  • Supplier details.
  • Raw material test reports.
  • Incoming inspection records.
  • Material batch identification and traceability.

C. Manufacturing and quality-control documents

  • Manufacturing process description.
  • Material proportioning and batching procedures.
  • Grinding and blending process controls.
  • Finished-product inspection procedures.
  • Test procedures and formats.
  • Production and batch records.
  • Non-conformity and corrective-action procedures.
  • Storage and packing procedures.

D. Laboratory documents

  • List of testing equipment.
  • Calibration certificates.
  • Equipment maintenance records.
  • Laboratory test methods.
  • Test reports and formats.
  • Details of laboratory personnel.
  • Details of any proposed external testing arrangements, where permitted.

E. BIS application documents

  • BIS application and declarations.
  • Product details and proposed scope.
  • Factory and manufacturing information.
  • Relevant test reports and supporting documents.
  • Applicable fee and licence-related documents.
  • Additional documents requested by BIS during scrutiny or factory inspection.
This checklist is intended for preparation. The final application requirements must be confirmed through BIS for the current edition and manufacturing unit.

13. BIS Certification Process for Masonry Cement

The following steps provide a practical overview of the BIS certification process.

Step 1: Confirm the applicable standard

Confirm that the product is covered under IS 3466:2026 and obtain the latest standard and product manual.

Step 2: Review the product formulation

Identify the raw materials, cement constituents and any additives used in manufacturing. Confirm that the proposed formulation meets the current standard.

Step 3: Assess manufacturing readiness

Review the grinding, blending, storage and packing facilities.

Step 4: Assess laboratory readiness

Verify the testing equipment, calibration arrangements, technical personnel and laboratory records required for the current standard.

Step 5: Prepare the BIS application

Compile the company, factory, product, process and quality-control documentation.

Step 6: Confirm sample requirements

Confirm the applicable sample quantity and test programme with BIS and the designated laboratory.

Step 7: Complete product testing

Arrange the required physical and other tests and address any test failures or observations.

Step 8: Factory inspection

BIS may assess the manufacturing facilities, laboratory arrangements, quality-control system and production records.

Step 9: Resolve observations

Submit corrective actions, supporting records or additional test evidence where requested.

Step 10: Grant of licence and ISI Mark

Once BIS confirms compliance with the applicable requirements and grants the licence, the manufacturer may use the Standard Mark in accordance with the approved scope and licence conditions.

14. BIS Certification Fees and Testing Costs

The total cost of BIS certification for Masonry Cement depends on the applicable BIS fee schedule, testing requirements, manufacturing-unit readiness and certification scope. The main cost components may include:
  • BIS application and processing charges.
  • Factory inspection charges.
  • Applicable licence and marking fees.
  • Product testing charges.
  • Sample preparation and transportation.
  • Laboratory setup and calibration expenses.
  • Quality-control documentation.
  • Consultancy charges, if professional support is engaged.

Testing charges

The older BIS product manual does not provide a universal testing price. Laboratory charges should be confirmed directly with the selected laboratory through the BIS Laboratory Information Management System. Official resource: BIS LIMS. Important: Do not rely on an old laboratory quotation or historical test charge as the current certification cost. A proper estimate requires confirmation of the current IS 3466:2026 test programme and applicable BIS charges.

15. How Long Does BIS Certification Take?

The duration depends on the manufacturer's readiness, application completeness, sample testing, laboratory availability, factory assessment and resolution of observations. Factors that may affect the timeline include:
  • Transition to IS 3466:2026.
  • Availability of the latest product manual.
  • Completeness of raw material and formulation records.
  • Testing and calibration facilities.
  • Sample preparation and laboratory availability.
  • Non-conformities requiring corrective action.
  • Factory inspection observations.
Manufacturers should prepare a project schedule after reviewing the current standard and their manufacturing and laboratory readiness.

16. Marking and Packaging Requirements

Masonry Cement supplied under a BIS licence must comply with the applicable marking and packaging requirements of the current standard and BIS licence. The earlier standard and BIS product manual contain provisions concerning identification and marking of cement packages. The BIS compendium also describes the importance of properly labelled bags for product identification and compliance with applicable weight requirements. <Cite refs={["turn198049search25","turn198049search23"]}/> Manufacturers should verify the current requirements for:
  • BIS Standard Mark.
  • BIS licence number (CM/L).
  • Manufacturer's name and address.
  • Product designation.
  • Net quantity.
  • Batch or lot identification.
  • Date or other prescribed production information.
  • Applicable Legal Metrology declarations.
  • Any additional information required by the current standard.
The final bag artwork should be reviewed against the current standard, applicable marking provisions and BIS licence conditions before commercial production.

17. Difference Between Masonry Cement and Ordinary Portland Cement

Masonry Cement and Ordinary Portland Cement are different cement products and should not be treated as interchangeable.
Parameter Masonry Cement Ordinary Portland Cement
Standard IS 3466 IS 269
Primary application Masonry mortar, rendering and plastering General construction and structural concrete applications
Main performance focus Workability, plasticity, cohesion and water retention Strength and performance requirements for concrete and other applications
Typical use Brickwork, stonework and block masonry Concrete, reinforced concrete and general construction
BIS certification Mandatory under Scheme-I Mandatory under Scheme-I
Masonry Cement is intended for masonry applications and is not intended for structural concrete, flooring, foundations or reinforced and prestressed concrete works. <Cite refs={["turn557823search16","turn557823search1"]}/>

18. Common Mistakes Manufacturers Should Avoid

Manufacturers should pay attention to the following issues:
  1. Applying under IS 3466:1988 without checking the revised IS 3466:2026.
  2. Using the old product manual as the sole basis for a new application.
  3. Assuming the earlier 10 kg sample quantity remains valid.
  4. Using raw materials without confirming their conformity under the current standard.
  5. Failing to maintain material proportioning and blending records.
  6. Not maintaining suitable laboratory and calibration facilities.
  7. Treating Masonry Cement as suitable for structural concrete applications.
  8. Using incorrect product descriptions or marking on cement bags.
  9. Treating laboratory test reports as equivalent to a BIS licence.
  10. Using the ISI Mark before the licence is granted.

19. Frequently Asked Questions (FAQs)

Q1. What is the applicable Indian Standard for Masonry Cement?

The current standard is IS 3466:2026 — Masonry Cement — Specification (Third Revision). It superseded IS 3466:1988 on 20 September 2026. <Cite refs={["turn557823search0","turn557823search15"]}/>

Q2. Is BIS certification mandatory for Masonry Cement?

Yes. BIS lists Masonry Cement under Scheme-I compulsory certification. Manufacturers must obtain the applicable BIS licence and comply with the relevant standard. <Cite refs={["turn557823search1","turn557823search2"]}/>

Q3. What is the sample quantity for BIS testing?

The older BIS product manual for IS 3466:1988 specifies 10 kg of Masonry Cement. Confirm the current sample requirement under IS 3466:2026 before submitting samples. <Cite refs={["turn198049search23"]}/>

Q4. Which tests were specified under the earlier IS 3466 edition?

The earlier standard addressed fineness, setting time, soundness, compressive strength, air content and water retention. Verify the current test requirements and acceptance limits under IS 3466:2026. <Cite refs={["turn557823search16"]}/>

Q5. What is the main use of Masonry Cement?

It is chiefly intended for masonry mortar used in brickwork, stonework, concrete block masonry, rendering and plastering. <Cite refs={["turn557823search16"]}/>

Q6. Can Masonry Cement be used for structural concrete?

No. Masonry Cement is not intended for structural concrete, flooring, foundations, reinforced concrete or prestressed concrete works. <Cite refs={["turn557823search17"]}/>

Q7. Which raw materials are used in Masonry Cement?

The earlier BIS compendium describes clinker, gypsum, pozzolanic materials, inert materials and an air-entraining plasticizer where required. The permissible materials and proportions must be checked against IS 3466:2026. <Cite refs={["turn557823search16"]}/>

Q8. Is an in-house laboratory required?

The manufacturer must meet the laboratory and testing arrangements specified in the current BIS product manual and Scheme of Inspection and Testing. Confirm the precise equipment and testing provisions for IS 3466:2026.

Q9. How much does BIS certification cost?

The cost depends on applicable BIS charges, laboratory testing, sample requirements, factory readiness and any consultancy support. There is no single universal certification cost.

Q10. Can a manufacturer use the ISI Mark after submitting an application?

No. The Standard Mark may be used only after BIS grants the applicable licence and in accordance with its approved scope and conditions.

Q11. Has the older IS 3466:1988 standard been withdrawn?

Yes. BIS records show that IS 3466:1988 was withdrawn on 20 September 2026 and superseded by IS 3466:2026. <Cite refs={["turn557823search0","turn557823search15"]}/>

Q12. Can Qualitance India help with BIS certification for Masonry Cement?

Qualitance India can assist manufacturers with preliminary product-scope review, documentation preparation, laboratory coordination, manufacturing-readiness assessment and BIS application support.

20. BIS Certification Consultancy for Masonry Cement

BIS certification for Masonry Cement requires careful assessment of raw materials, product formulation, grinding and blending operations, laboratory testing, quality-control arrangements and marking requirements. With the introduction of IS 3466:2026, manufacturers should review their existing compliance arrangements and ensure that new applications and production controls follow the revised standard. Qualitance India provides BIS product certification consultancy and regulatory compliance support to cement manufacturers. Our assistance may include:
  • Preliminary review of IS 3466:2026 and applicable certification requirements.
  • Raw material and formulation compliance review.
  • Product-scope and manufacturing-process assessment.
  • Laboratory and testing readiness review.
  • Quality-control documentation preparation.
  • Sample planning and laboratory coordination.
  • Factory inspection preparation.
  • Application coordination and support in responding to BIS observations.
The final standard requirements, testing programme, fee schedule and approval timeline should be confirmed against the current BIS documents for the specific manufacturing unit.

Contact Qualitance India

Qualitance India — Improving Quality & Competence Contact us to discuss BIS certification requirements for your Masonry Cement manufacturing unit.

Official References

  1. BIS Standard Details — IS 3466:2026
  2. Government Gazette — IS 3466:2026 and withdrawal of IS 3466:1988
  3. BIS Scheme-I — Products Under Compulsory Certification
  4. BIS Product Manual — Masonry Cement, IS 3466:1988 (January 2019)
  5. BIS Compendium of Cement Standards
  6. BIS Product-Specific Guidelines
  7. BIS Laboratory Information Management System
Disclaimer: This article is for general information and preliminary compliance planning. IS 3466:1988 was withdrawn on 20 September 2026 and superseded by IS 3466:2026. The older product manual and technical values are included only as historical reference. Before applying, obtain and verify the current standard, BIS product manual, Quality Control Order provisions, test requirements, sample quantity, marking requirements and fee schedule.

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