Book of Donmon Teith

This Standard stipulates two methods for the determination of luminous transmittance and haze of transparent plastics. Method A is haze meter method. Method B i

This Standard specifies the method principle, apparatus, sampling and sample preparation, test procedures, results calculation and precision etc. of the coke wi

This Part of GB/T 19363.1 specifies the translation services - translation services specifications. This Part is applicable to translation services.

This standard specifies general specifications for acceptance, packaging, marking and certification for section steel (steel bar and rod). This Standard is appl

This Standard specifies the general method for the direct determination of ignition residues for organic chemical products. This Standard applies to the determi