Introductio
Cement is foundational to India’s infrastructure—serving as the backbone for homes, offices, roads, and critical structures. To safeguard construction quality and public safety, the Bureau of Indian Standards (BIS) mandates ISI certification for cement under Quality Control Orders (QCOs).
If you're producing, importing, or distributing cement like OPC, PPC, PSC, or specialty types—BIS certification is indispensable. Here’s how Diligence Certification streamlines your journey toward compliance.
Why BIS Certification for Cement Matters
Legal Requirement: Cement falls under mandatory BIS certification. Selling non-certified cement is unlawful. Bureau of Indian Standards
Structural Reliability: Certified cement undergoes rigorous testing for strength, chemical properties, consistency, and workability.

Consumer Confidence: The ISI mark assures end-users and construction professionals of quality trustworthiness.

Market Access: Critical for supply to government contracts, commercial builders, and bulk buyers.
Common Indian Standards (IS Codes) for Cement
Different cement types must conform to respective IS codes:
Cement Type
IS Code
Ordinary Portland Cement (OPC)
IS 269, IS 12269
Portland Pozzolana Cement (PPC)
IS 1489 (Parts 1 & 2)
Portland Slag Cement (PSC)
IS 455
Sulfate Resisting Cement (SRC)
IS 12330
White, Rapid Hardening, Masonry Cements
Various IS codes