1.1 Headspace gas chromatography (GC) involves the determination of volatile components in a polymer solution by gas chromatography of a vapor phase in thermal equilibrium with the sample matrix. Volatiles in finely ground insoluble polymers can also be determined with and without an extracting solvent.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Specific precautionary statements are given in Section 6.
3.1 For various reasons, one may want to measure the level of unreacted or residual monomer, water, or other volatile components in a polymer sample.
3.2 Volatiles of interest are often at trace concentrations. Headspace analysis is suited for determination of these trace components which often cannot be determined by conventional gas chromatography because of sample decomposition or interferences.
SDO | ASTM: ASTM International |
Document Number | D4526 |
Publication Date | Dec. 15, 2012 |
Language | en - English |
Page Count | 4 |
Revision Level | 12 |
Supercedes | |
Committee | D20.70 |