The Central Pollution Control Board (CPCB) has announced the introduction of provisional certification for low volume manual PM2.5 samplers. This certification will be granted based on the performance of these samplers in tests conducted for specific parameters.
What are Low manual PM 2.5 samplers?
Low manual PM 2.5 samplers are instruments that measure the amount of particulate matter in the air that is 2.5 microns or less in size. These
Key Parameters for Testing
- Cut point:
- D50 cut-off size of impactor/cyclone
- Sharpness of the penetration efficiency curve
- Size Selective Inlet Type
- Height of the Inlet
- Time Totalizer
- Flow rate
- Temperature sensor
- Humidity sensor
- Pressure sensor
Pass/Fail Criteria
The pass/fail criteria for these parameters will be determined based on the CPCB guideline no. 102946/2023/AQMN-HO.
Provisional certification will provide manufacturers and users of low volume manual PM2.5 samplers with an initial assessment of their performance. This can help in identifying and addressing any shortcomings before final certification is sought.
