IS 6909:1990 pertains to supersulphated Cement. This standard delineates the criteria for the composition, production, and testing of supersulphated cement. Compared to ordinary Portland cement, supersulphated cement offers several benefits, such as reduced hydration heat evolution, superior resistance to sulphates, and a higher proportion of gypsum to clinker.

Supersulphated cement is produced by intergrinding or closely blending a mixture of granulated blast furnace slag, calcium sulphate, and a small quantity of 33-grade ordinary Portland cement, Portland clinker, or another lime source. The dry granulated blast furnace slag component in the mixture must constitute at least 70% by mass. Additionally, the cement must be ground to a finer consistency than 33-grade ordinary Portland cement, and the manufacturing process must ensure thorough blending of its constituents.

Upon testing as per designated methods, supersulphated cement must satisfy the chemical and physical criteria outlined in the standard. It is the responsibility of the manufacturer to ensure compliance with these standards. An appropriately maintained laboratory is necessary to conduct the various tests as per the specified methods.

TESTS

The specified tests must be conducted for supersulphated cement

• Fineness

• Setting time

• Compressive Strength

• Transverse Strength Test

• Soundness

• Chemical requirement

The packing of supersulphated Cement must adhere to IS 6909:1990 guidelines, while labeling and marking should align with the standard specifications. Each bag or drum of supersulphated Cement must display the BIS Standard Mark (ISI Mark) or on its label, provided the material within meets the specified requirements. Manufacturers are required to obtain a BIS license from the Bureau of Indian Standards to utilize the standard mark (ISI Mark), which is granted upon successful evaluation of manufacturing infrastructure, quality control and testing capabilities, and production processes.

INDIAN STANDARD FOR CEMENTS

BIS CERTIFICATION PROCESS

Acquiring a BIS license requires a comprehensive review of manufacturing infrastructure, quality control abilities, testing resources, and production procedures. This thorough assessment guarantees that products not only adhere to regulations but also prioritize consumer safety and reliability.

NOTE:

For comprehensive guidance on the BIS ISI Certification process, please explore:

• Procedure for Domestic Manufacturers

• Procedure for Foreign Manufacturers

WHY USE ABSOLUTE VERITAS?

Absolute Veritas is a prominent organisation from the private sector of India primarily dealing with the Inspection, Testing, Audits, Certification of products& consulting services to various industries in India and worldwide, ensuring compliance with regulatory standards and industry requirements. Offering a comprehensive range of services including product certification, testing, training, auditing, and compliance services, Absolute Veritas helps manufacturers and importers achieve higher production efficiency and quality standards.

Absolute Veritas (AV) will handle end to end pre-registration request, sample preparation, documentation, testing and application process for FMCS Certification

For any questions regarding the most recent update on FMCS registration licenses, please reach out to us via email at cs@absoluteveritas.com