IS 7129:2021 pertains to Anhydrous Potassium Carbonate. This standard outlines the necessary specifications, as well as the methods for sampling and testing, ensuring compliance with potassium carbonate, anhydrous.

Potassium carbonate serves as a dehydrating agent and is utilized in the production of various potassium salts such as chlorates and chromates. It finds application in ceramics, explosives, tanning, electroplating, fertilizers, mineral water, shampoo production, process engraving, lithography, soft soaps, textile dyeing, oil bleaching and finishing, and photography.

The material should be a white deliquescent crystalline powder. Upon testing following the methods outlined in Annex A of this standard, the substance must conform to the specified requirements within the standard.

TESTS

The subsequent test must be conducted for Potassium Carbonate.

• Description

• Size

• Total Alkalinity

• Potassium bicarbonate or Free Alkali

• Sulphates

• Chlorides

• Matter insoluble in water

• Heavy Metals

• Loss on heating

• Magnesium and Calcium

PACKING AND MARKING

Packing and marking procedures must align with IS 7129:2021. The material should be packed in clean, dry HDPE or PP bags with an HM-HDPE liner. The Standard Mark (ISI Mark) will be imprinted on the container only if the material meets all specification requirements.

Every container must display labels containing the specified information as outlined in the standard. Manufacturers are required to acquire a BIS license from the Bureau of Indian Standards to use a standard mark (ISI Mark). This license is granted following a comprehensive assessment of manufacturing infrastructure, quality control measures, testing capabilities, and production processes.

PROCESS FOR BIS ISI MARK CERTIFICATION