The Bureau of Indian Standards (BIS), under the Department of Consumer Affairs, has released an official notification announcing the establishment of several new Indian Standards related to textiles, water quality, and microbiology of the food chain.
The new standards come into effect starting 26th August 2025, with select older versions to be withdrawn by 26th February 2026.
✅ Key Highlights:
🧵 Textile Standards (Revised):
| Sl. No | New Standard | Title | Replaces | Withdrawal Date |
| 1 | IS 1531:2025 | Textiles — Blanketing Cloth (3rd Rev.) | IS 1531:1993 | 26 Feb 2026 |
| 2 | IS 1670:2025 | Yarn — Breaking Force & Elongation (3rd Rev.) | IS 1670:1991 | 26 Feb 2026 |
These updates modernize testing methods and align with current international practices.
💧 Water Quality Standards (New Additions):
| Standard | Based on ISO | Subject |
| IS 19200:2025 | ISO 15553:2006 | Detection of Cryptosporidium & Giardia |
| IS 19333 (Part 1):2025 | ISO 16266:2006 | Detection of Pseudomonas aeruginosa (Membrane Method) |
| IS 19333 (Part 2):2025 | ISO 16266-2:2018 | Detection of Pseudomonas aeruginosa (MPN Method) |
| IS 19338:2025 | ISO 29201:2012 | Variability & Uncertainty in Microbiological Methods |
| IS 19342:2025 | ISO 17995:2019 | Detection of Thermotolerant Campylobacter spp. |
| IS 19352:2025 | ISO/TS 12869:2019 | Legionella detection via qPCR |
These standards are expected to enhance the reliability of water testing in India, especially relevant for public health and industrial use.
🧪 Food Chain Microbiology Standards:
| Standard | Based on ISO | Subject |
| IS 18349 (Part 2):2025 | ISO 15213-2:2023 | Enumeration of Clostridium perfringens |
| IS 18349 (Part 3):2025 | ISO/TS 15213-3:2024 | Detection of Clostridium perfringens |
| IS 19353:2025 | ISO/TS 17728:2015 | Sampling Techniques for Food & Feed Microbiology |
These are vital for ensuring food safety, especially in manufacturing and agricultural sectors.
📅 Effective Date:
All new standards come into effect on 26th August 2025.
🗓️ Withdrawal of Old Standards:
Older versions of textile standards (IS 1531:1993 and IS 1670:1991) will remain valid until 26th February 2026, after which they will be formally withdrawn.