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Key and supplementary comparisons of NPL-India at KCDB-BIPM [28]
| Metrology area | Number | Metrology area | Number |
|---|---|---|---|
| Mass and related quantities | 39 | Chemical and biology | 18 |
| Electricity and magnetism | 30 | Thermometry | 08 |
| Length | 20 | Photometry and radiometry | 03 |
| Acoustic, ultrasound and vibration | 11 | Time and frequency | 01 |
