HJ 1057-2019
Determination of ozone-depleting substances including HCFC-22, CFC-11 and HCFC-141b in pre-blended polyether polyols-Headspace/gas chromatography-mass spectrometry (English Version)

Standard No.

HJ 1057-2019

Language

Chinese, Available in English version

Release Date

2019

Published By

Professional Standard - Environmental Protection

Latest

HJ 1057-2019

Scope

This standard specifies the determination of the headspace/headspace/ Gas Chromatography-Mass Spectrometry. This standard is applicable to the determination of ozone-depleting substances such as HCFC-22, CFC-11 and HCFC-141b in combined polyethers. When the sampling amount is 1g, the detection limits of this standard for the determination of HCFC-22, CFC-11 and HCFC-141b are all 0.2 µg/g, and the lower detection limits are 0.8 µg/g.

HJ 1057-2019 history

• 2019 HJ 1057-2019 Determination of ozone-depleting substances including HCFC-22, CFC-11 and HCFC-141b in pre-blended polyether polyols-Headspace/gas chromatography-mass spectrometry