MT/T 707-1997
Replaced
T/CPCIF 0044-2020
Active
Group standards
T/CPCIF 0044-2020 Determination of purity of polyols by gas chromatography
T/CPCIF 0044-2020 Determination of purity of polyols by gas chromatography
Price:
$ 20.00
Basic Information
Standard Code:
T/CPCIF 0044-2020
Standard Type:
Group standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Basic standards and general methods
ICS Name:
Other standards related to analytical chemistry
Publish Date:
2020-04-07
Implement Date:
2020-07-07
Scope
Main technical content: This standard specifies the test method for indirectly determining the mass fraction of the main components of high-boiling-point polyols by gas chromatography. This standard is applicable to polyols with a high boiling point under normal pressure, which need to be converted into esters with a lower boiling point and capable of being separated by gas chromatography columns using acetic anhydride.
Development Information
Related Standards
GB/T 20724-2006
Replaced
GB/T 20724-2006 Method of thickness measurement for thin crystal by convergent beam electron diffraction
GB/T 20725-2006
Active
GB/T 20725-2006 Electron probe microanalysis guidelines for qualitative point analysis by wavelength dispersive X-ray spectrometry
GB/T 20726-2006
Replaced
GB/T 20726-2006 Instrumental specification for energy dispersive X-ray spectrometers with semiconductor detectors
LY/T 1082-2008
Replaced
LY/T 1082-2008 Test method for analysis of vegetable tannin extracts
LY/T 1083-2008
Replaced