The CSIR-National Physical Laboratory (CSIR-NPL) on July 16, 2024, issued a notification regarding provisional certification of low-volume manual PM2.5 Samplers with minimum acceptability criteria.
The following has been stated: -
•CSIR-NPL and CPCB Collaborate on Low-Volume Manual PM2.5 Samplers Certification
•Key Parameters:
1.Cut point (D50, penetration efficiency curve)
2. Inlet height and type
3. Flow rate, temperature, humidity, and pressure sensors
4. Time totalizer
•Certification will follow CPCB Guideline No. 102946/2023/AQMN-HO pass/fail criteria.
URL: https://cpcb.nic.in/uploads/Revised-specification-sampler.pdf
The detailed notification is given in the document below.