BIS CERTIFICATION FOR SULPHATE RESISTING PORTLAND CEMENT
IS 12330

Sulphate-resistant Portland cement shall be produced by grinding and intimately mixing calcareous and argillaceous and other silica, alumina, and iron oxide bearing materials burning them at clinkering temperatures and grinding the resulting clinker to produce cement capable of meeting this specification. After burning, no material other than gypsum, water or both, and not more than one percent of air-entraining agents shall be added.

Sulphate Resisting Portland cement (SRPC) is a type of Portland cement in which the amount of Tricalcium Aluminate (C3A) is less than 5%, and the combined amount of C3A and calcium aluminoferrite (C4AF) is less than 25%, which reduces the formation of sulphate salt. The probability of sulphate attack on concrete is reduced when sulphate salts are reduced.

When tested in accordance with the methods specified, sulphate-resistant Portland cement must meet the chemical and physical requirements specified in the standard.

Tests

The following test shall be carried out for Sulphate resisting Portland cement.

• Insoluble Residue
• Loss of ignition
• Fineness
• Setting time
• Soundness
• Compressive Strength
• Transverse Strength Test

A laboratory shall be adequately maintained, in which the various tests shall be carried out according to the methods specified in the standard.

Packing and Marking shall be done as per the requirements of IS 12330. The BIS Standard Mark (ISI Mark) shall be printed on each bag or drum of Sulphate resisting Portland cement on the label applied to it, provided that the material in each bag or package to which the mark is thus applied meets the specification. The Manufacturer must obtain a BIS license from the Bureau of Indian Standards to use a standard mark (ISI Mark). The BIS grants a license based on a successful assessment of manufacturing infrastructure, quality control and testing capabilities, and production process.

Indian Stantdard for Cements

IS Number	Product Name
IS 1489 (PART 2)	PORTLAND POZZOLANA CEMENT
IS 16415:2015	COMPOSITE CEMENT
IS 455:2015	PORTLAND SLAG CEMENT
IS 12600	LOW HEAT PORTLAND CEMENT
IS 1489 (PART 1): 2015	PORTLAND POZZOLANA CEMENT
IS 269:2015	ORDINARY PORTLAND CEMENT
IS 3466:1988	MASONRY CEMENT
IS 6909:1990	SUPERSULPHATED CEMENT
IS 8042:2015	WHITE PORTLAND CEMENT
IS 6452:1989	HIGH ALUMINA CEMENT
IS 8043:1991	HYDROPHOBIC PORTLAND CEMENT
IS 8229:1986	OIL WELL CEMENT
IS 15895:2011	HIGH ALUMINA REFRACTORY CEMENT
IS 16993:2018	MICROFINE ORDINARY PORTLAND CEMENT

NOTE:

For Detailed Information about the Procedure for BIS ISI Certification

Conclusion:

If a product falls under the scope of the BIS Conformity Assessment Scheme, All the manufacturers, importers, and foreign entities must obtain BIS ISI Certification. The Bureau may cancel the License if the product fails to meet certification requirements.

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