Gb T 21354 2008 Translated English Of Chinese Standard Gbt 21354 2008 Gb T21354 2008 Gbt21354 2008

This standard specifies the method for measuring the tap density, that is, the powder in the container is tapped under certain conditions. Use a tapping apparatus to tap the specified amount of powder in the container until the volume of the powder cannot be further decreased. The mass of the powder divided by the volume is the tap density.

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 method principle, apparatus, sampling and sample preparation, test procedures, results calculation and precision etc. of the coke with particle size greater than 60mm and 25mm. This Standard is applicable to the determination of mechanical strength of coke with particle size no less than 25mm. The coke with particle size less than 25mm can also refer to this Standard.

This standard specifies general specifications for acceptance, packaging, marking and certification for section steel (steel bar and rod). This Standard is applicable to hot rolling, cold drawing (rolling), forging and heat treating section steel.

This Standard specifies notations for designations of iron and steel. It is applicable to the preparation of designations for pig iron, carbon structural steels, low-alloy structure steel, quality carbon structural steel, free-cutting steel etc.

This standard specifies the classification code, ordering information, dimension appearance and permissible variation, technical specifications, test methods and, test rules as well as package, marking and quality certificates etc of the hot-rolled quality carbon structural steel strips.

This part of GB/T 6403 specifies the general-purpose cylindrical surface knurling type and size. This part applies to cylindrical knurling for general purposes.

This part specifies the terms and test methods for bias and precision checking. This part is applicable to the checking of the precision of the sampling and sample preparation methods listed in GB/T 2007.1 and GB/T 2007.2, as well as the bias checking test of sampling methods and sampling devices that need to be checked. It can also be used for checking the bias of the sample preparation method and reduction device.