2008GB/T 1033.1-2008 Plastics.Methods for determining density of non-celluar plastics.Part1:Immersion method,liquid pyknometer method and titration method
1986GB 1033-1986 Test methods for density and relative density of plastics
0000 GB 1033-1970
GB 1033-1986 Test methods for density and relative density of plastics was changed to GB/T 1033.1-2008 Plastics.Methods for determining density of non-celluar plastics.Part1:Immersion method,liquid pyknometer method and titration method.