Ambient Air and Exhaust Gas
China National Accreditation Service for Conformity Assessment
Approval certificate attachment
(Registration number: CNAS L7034)
Approved range of testing capabilities
| serial number | Detection object | Project parameters | Test standard (method) | illustrate | |
| serial number | name | ||||
| 1 | Ambient air and exhaust | 1 | particulates |
Determination of particulate matter in exhaust gas from stationary pollution sources and sampling method of gaseous pollutants GB/T 16157-1996 |
Only for particulate matter |
| 2 | asphalt smoke |
Gravimetric method for determination of asphalt fume in exhaust gas from stationary pollution sources HJ/T 45-1999 |
— | ||
| 3 | sulfur dioxide |
Determination of sulfur dioxide in ambient air by formaldehyde absorption-pararosaniline spectrophotometry HJ 482-2009 |
— | ||
| 4 | suspended particulate matter |
Gravimetric method for determination of total suspended particulate matter in ambient air GB/T 15432-1995 |
— | ||
| 5 | PM 10 |
Gravimetric determination of ambient air PM 10 and PM 2.5 HJ 618-2011 |
— | ||
| 6 | PM 2.5 |
Gravimetric determination of ambient air PM10 and PM2.5 HJ 618-2011 |
— | ||