This standard specifies two methods for determining the density of solid vulcanized or thermoplastic rubber. This standard applies to the control of the quality

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

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

This Standard specifies the product classification, technical requirements, test methods, inspection rules and marking, packaging, transportation and storage of

This Standard specifies the terms and definitions, principle, instruments and utensils, reagents and solutions, operation steps, result calculation and repeatab