The Bureau of Indian Standards (BIS) initiated a public consultation on draft revisions to the national standards for potassium iodide, a chemical widely used as a reagent in analytical chemistry, photography for precipitating silver and for medicinal purposes. Stakeholders may submit feedback until March 26, 2025.
The updated standards specify quality requirements and testing methods for both pure potassium iodide and analytical reagent-grade potassium iodide, with major changes including:
1.New instrumental testing methods: Introduction of instrumental techniques to measure iron, lead, arsenic, chloride, and sulfate content, replacing traditional methods to enhance efficiency and accuracy.
2. Addition of multiple critical parameter limits for both types of potassium iodide. For example, the maximum permissible loss on drying is reduced from 1.0% (pure grade) to 0.2%.
Packaging and Labelling Requirements
Potassium iodide must be packaged as colorless crystals, granules, or powder. Containers must display the product name, grade, manufacturer details, net weight, and batch number. In the case of analytical reagent grade, the maximum limits for the characteristics given in the table shall also be given on the label.
Compliance Certification
Products meeting the revised standards may apply for BIS certification and carry the Indian Standard (IS) mark, improving market recognition of compliant products.
BIS stated that the revisions aim to align with technological advancements and industry demands while ensuring quality consistency across applications.
