Determination of ozone-depleting substances including CFC-12, HCFC-22, CFC-11 and HCFC-141b in rigid polyurethane foam and pre-blended polyether polyols—Portable headspace/gas chromatography-mass spectrometry
Determination of ozone-depleting substances including CFC-12, HCFC-22, CFC-11 and HCFC-141b in rigid polyurethane foam and pre-blended polyether polyols—Portable headspace/gas chromatography-mass spectrometry