IS 299:2012 is the Bureau of Indian Standards specification for Alumino-Ferric - a coagulant chemical consisting of a combination of aluminium sulphate and ferric sulphate, used in water treatment for the coagulation and flocculation of suspended impurities, turbidity, and colloidal matter from raw water. This standard defines the mandatory quality requirements for Alumino-Ferric supplied for water purification applications in India - covering chemical composition, purity, and safety parameters essential for producing potable water that meets health standards.
Key requirements under IS 299:2012 include:
1. Aluminium oxide (Al₂O₃) content — minimum percentage by mass defining coagulant strength
2. Iron (Fe₂O₃) content — ferric component within the specified range contributing to coagulation performance
3. Water-insoluble matter — must be below the defined limit to ensure effective dissolution and performance in treatment plant dosing systems
4. Free acid content — within defined limits to prevent corrosion and process interference
5. Arsenic content — controlled to extremely low limits given the drinking water application
6. Heavy metal content — lead and other toxic metals limited to safe levels for potable water use
7. Basicity — within the defined range for effective coagulation
8. Appearance and physical form — defined for lump, granular, or powder grades as applicable
9. Marking and labelling — BIS ISI Mark and batch identification correctly applied to certified packaging
BIS certification under IS 299:2012 is mandatory for Alumino-Ferric manufacturers supplying to government and municipal water treatment projects in India. Municipal corporations, state water boards, public health engineering departments, and large industrial water treatment facilities all require BIS-certified Alumino-Ferric - making IS 299:2012 certification a direct commercial and regulatory requirement for any serious Alumino-Ferric manufacturer in India.