This Standard specifies the chemical composition, mechanical properties, technical requirements, test and inspection, etc. of stainless steel castings for gener

This Standard serves as the coded character standard of the GB/T 2311 system. It specifies the hexadecimal representation of Chinese graphic characters and thei

This Standard specifies the method for the determination of the components which can be dissolved in dichloromethane in pulp. This method is applicable to vario

This standard specifies the meaning and determination of steel-parts carburizing and carbonitriding hardened-case depth. This standard is applicable to carburiz

This Standard specifies a method for simulating the release of nickel from jewellery, in order to determine whether the item releases nickel at a rate greater t