This standard specifies the types and dimensions, requirements, labeling, marking, inspection, packaging, transportation and storage of gaskets for large-diameter steel pipe flanges.
This standard is applicable to NPS26~NPS60 and Class150~Class900 spiral wound gaskets and flexible graphite corrugated gaskets used for large-diameter steel pipe flanges, as well as Class150~Class300 nonmetallic flat gaskets and flexible graphite gaskets reinforced with tanged metal sheet.
2 Normative References
The following standards contain provisions which, through reference in this standard, 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 to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards. For undated references, the latest edition of the normative document referred to applies.
