| S No | Group Number | Scope of work | Date of creation | Time Frame | No of Members |
|---|---|---|---|---|---|
| 1. | CHD 27 : P8 | - | - | 5 | |
| 2. | CHD 27 : P9 | - | - | 7 | |
| 3. | CHD 27 : P11 | To provide inputs on ISO ballots and other related ISO activities | 30-07-2024 | 30-07-2024 | 5 |
| 4. | CHD 27 : P12 | To work on developing standards on new test methods | 30-07-2024 | 30-07-2024 | 12 |
| 5. | CHD 27 : P13 | Discussion on the revision document of IS 3346:1980; CHD 27 (27435) | 07-04-2025 | 07-04-2025 | 6 |