The BIS ISI mark for cement makers in India assures that their products fulfill the Bureau of Indian criteria' quality and safety criteria. It is a necessary certification that indicates adherence to Indian Standard (IS) standards, such as IS 269 for Ordinary Portland Cement (OPC) and IS 1489 for Portland Pozzolana Cement (PPC). To receive the ISI mark, producers must go through testing, factory inspections, and quality checks. This accreditation confirms that building materials are durable, strong, and reliable. The ISI brand increases customer trust and assures that cement fulfills national regulatory standards for infrastructure and construction projects.
Applicable of Indian Standard For Cement
SNO
PRODUCT
IS NO
1
Sulphate Resisting Portland Cement
12330
2
Low heat Portland Cement
12600
3
Portland Pozzolana Cement-Part1 Fly-ash based
1489 (Part 1)
4
Portland Pozzolana Cement-Part 2 Calcined clay based
1489 (Part 2)
5
Ordinary Portland Cement
269
6
Masonry Cement
3466
7
Portland Slag Cement
455
8
High Alumina Cement for Structural use
6452
9
Super sulphated cement
6909
10
Rapid hardening Portland cement
8041
11
White Portland Cement
8042
12
Hydrophobic Portland Cement
8043
13
Oil well Cement
8229
14
Composite Cement- Specification
16415: 2015
15
Microfine Ordinary Portland Cement- Specification
16993: 2018
16
High Alumina Refractory Cement
15895: 2018
Frequently Asked Questions
Q1. What is the ISI mark on a cement bag?
The ISI mark on a cement bag signifies that the product meets Bureau of Indian Standards (BIS) quality and safety norms, ensuring compliance with the relevant Indian Standard (IS) codes.
Q2. What is ISI 16415 cement grade?
IS 16415 refers to Composite Cement, a blend of Portland Cement, Fly Ash, and Slag, offering improved durability, strength, and sustainability for construction applications, including high-performance concrete structures.
Q3. What is the full form of ISI in the cement industry?
ISI stands for Indian Standards Institute, now known as Bureau of Indian Standards (BIS), which sets quality and safety norms for cement and other industrial products in India.
Q4. Which grade is best for cement?
The best grade depends on the application. OPC 53 Grade is preferred for high-strength structures, while PPC and PSC are better for durability, water resistance, and eco-friendly construction.
Q5. Is 1489 a cement grade?
No, IS 1489 is the standard for Portland Pozzolana Cement (PPC), which includes fly ash or calcined clay, enhancing durability and reducing environmental impact compared to Ordinary Portland Cement (OPC).