GB/T 12225-2005 in English

《GB/T 12225-2005通用阀门 铜合金铸件技术条件》由TC188（全国阀门标准化技术委员会）归口，主管部门为中国机械工业联合会。
本标准规定了砂型铸造和金属型铸造(非压力铸造)的阀门及管件的铜合金铸件(以下简称铸件)的铸件分级、技术要求、检验方法、标志、包装、运输和贮存。

1 Scope

This standard specifies the grading of castings, technical requirements, inspection method, marking, packaging, transportation and storage of the copper alloy castings (hereinafter referred to as castings) of valve and pipe fittings by sand casting and metal mold casting (not pressure casting).
This standard is applicable to the cast copper alloys specified in Table 1.
Table 1 Designations of Copper Alloy Castings

Foreword i
1 Scope
2 Normative References
3 Grading of Castings
4 Technical Requirements
5 Inspection Method
6 Marking, Packaging, Transportation and Storage