Bureau of Indian Standards Releases Draft Chromite Standard for Chemical Industries
The Bureau of Indian Standards (BIS) has released the Draft Indian Standard for Chromite for Chemical Industries — Specification (Second Revision), which outlines the updated requirements for chromite used in various chemical industries. This revised standard aims to ensure uniformity, quality, and consistency in the use of chromite for chemical processes, in line with the latest industry needs and regulatory frameworks.
Key Features of the Standard:
- Scope:
The standard specifies the detailed requirements and test methods for chromite used in the chemical industry, ensuring that the material meets the essential quality benchmarks for industrial use. - Updated References:
The standard references important established norms such as IS 1070:2023 for reagent-grade water and IS 2109:1982 for sampling methods, ensuring alignment with globally recognized standards.
- Material Specifications:
The chromite material, whether in lump or concentrate form, must be free from dirt and other foreign matter. The standard details specific limits for key components:
- Chromic oxide (Cr2O3): Minimum 44%
- Total iron (FeO): Maximum 20%
- Alumina (Al2O3): Maximum 14%
- Silica (SiO2): Maximum 7%
- Lime (CaO): Maximum 3%
- Magnesia (MgO): Maximum 14%
- Packing and Marking:
The material must be packaged and marked in a manner that ensures clear identification and traceability. Packaging can include open wagons, and labels should feature essential details such as the material’s name, its mass, lot number, and manufacturer’s information.
- BIS Certification:
Products that conform to the standard may be eligible for BIS certification, further assuring consumers and industries of their quality and adherence to the prescribed criteria.
- Sampling and Testing Procedures:
The standard emphasizes rigorous sampling methods and a structured approach to testing, with specific criteria for individual and composite sample testing. For example, the chromic oxide test involves calculating the mean and range of test results to determine conformity.
Call for Public Comments
This Draft Indian Standard is now open for public comments and feedback until 26 March 2025. Stakeholders in the chemical industry are encouraged to review the document and provide suggestions to help refine the specifications.
By establishing clearer guidelines for chromite quality and testing methods, BIS is ensuring that the chemical industry maintains high standards of safety, consistency, and efficiency, ultimately supporting better industrial practices and products.
Industry stakeholders can download the full official Draft Indian Standard Doc. CHD 01 (27436) WC here.
We acknowledge that the above information has been compiled from Bureau of Indian Standards (BIS).
