，
老化流量 100 ml/min



Combination 2 adsorption tubes
Combination 2 adsorption tubes Details:

This standard is formulated in order to implement the Environmental Protection Law and the Air Pollution Prevention and Control Law, protect the environment, safeguard human health, and standardize the determination methods of volatile organic compounds in waste gas from stationary pollution sources. This standard specifies the solid-phase adsorption-thermal desorption/gas chromatography-mass spectrometry method for volatile organic compounds in waste gas from stationary pollution sources. This standard is published for the first time.
HJ 734-2014 Waste gas from stationary pollution sources-Determination of volatile organic compounds-Solid phase adsorption-thermal desorption-Gas chromatography-mass spectrometry

Combination of 2 adsorption tubes, with CarbopackB and Carboxen1000 inside, the lengths are 30 and 10mm respectively.

5.7 Adsorption tube: stainless steel, inner diameter 5 mm.
Combination 1 adsorption tube with Tenax GR and Carbopack B inside, lengths of 30 and 25 mm, respectively.
Combination of 2 adsorption tubes with Carbopack B and Carboxen 1000 inside, lengths of 30 and 10 mm respectively.


C.2.2 Combination 2 adsorption sampling tube
Suitable for compounds in the range of C3 to C12. When the humidity is lower than 65% and the temperature is lower than 30°C (moisture content
<1.8%), 2 L of gas samples can be collected; when the humidity is higher than 65% and the temperature is higher than 30℃ (moisture content>1.8%),
The sample volume is reduced to 0.5 L; for compounds above C4, the sample volume can be increased to 5 L. Aging temperature 350 ℃,
Aging flow 100 ml/min