This standard specifies the requirements, test methods, inspection rules, ordering requirements, marking and quality certificate of such pressure carbon steel forgings as general purpose industrial valves, flanges and pipe fittings.
This standard is applicable to such preesure carbon steel forgings (hereinafter referred as "forgings") as general purpose industrial valves, flanges and pipe fittings. And it also may be taken as reference for the nonpressure forgings.
2 Normative References
The following standards contain provisions which, through reference in this text, constitute provisions of this standard. For dated reference, subsequent amendments to (excluding correction to), or revisions of, any of these publications do not apply. However, the parties whose enter into agreement according to these specifications are encouraged to research whether the latest editions of these labels are applied or not. For undated references, the latest edition of the normative document referred to applies.
GB/T 12228-2006 The following standards are cited：
