BIS Updates Standards for Water Quality and Food Microbiology

"BIS Updates Standards for Water Quality and Food Microbiology
The changes cover detection, enumeration, and sampling methods for pathogens in water and food, including Clostridium spp., Pseudomonas aeruginosa, Cryptosporidium, Giardia, Campylobacter, and Legionella.
Key Changes in Food Microbiology Standards
IS 18349 (Part 2 & 3):2025 – Horizontal methods for detection and enumeration of Clostridium spp., including Clostridium perfringens.
IS 19353:2025 – Updated sampling techniques for microbiological analysis of food and feed samples.
Key Changes in Water Quality Standards
IS 19200:2025 – Detection of Cryptosporidium and Giardia in water (aligned with ISO 15553:2006).
IS 19333 (Part 1 & 2):2025 – Detection and enumeration of Pseudomonas aeruginosa using membrane filtration and Most Probable Number (MPN) methods.
IS 19338:2025 – Introduced guidelines for variability and uncertainty in microbiological enumeration.
IS 19342:2025 – Detection of thermotolerant Campylobacter spp. in water.
IS 19352:2025 – Detection and quantification of Legionella spp. using qPCR for higher sensitivity."