tailieunhanh - Standard Specification for General Requirements for Specialized Carbon and Alloy Steel Pipe

This specification covers a group of requirements which, with the exceptions of Section , Section 14, Section 21, and Section 22, are mandatory requirements to the ASTM pipe product specifications noted below unless the product specification specifies different requirements, in which case the requirement of the product specification shall prevail. | Designation A530 A530M 12 Standard Specification for General Requirements for Specialized Carbon and Alloy Steel Pipe1 This standard is issued under the fixed designation A530 A530M the number immediately following the designation indicates the year of original adoption or in the case of revision the year of last revision. A number in parentheses indicates the year of last reapproval. A superscript epsilon indicates an editorial change since the last revision or reapproval. This standard has been approved for use by agencies of the Department of Defense. 1. Scope A These designations refer to the latest issue of the respective specifications. This specification2 covers a group of requirements which with the exceptions of Section Section 14 Section The values stated in either inch-pound units or SI units 21 and Section 22 are mandatory requirements to the ASTM are to be regarded separately as standard. Within the text the pipe product specifications noted below unless the product SI units are shown in brackets. The values stated in each specification specifies different requirements in which case the system are not exact equivalents therefore each system must requirement of the product specification shall prevail. be used independently of the other. Combining values from the two systems may result in nonconformance with the specifi- Sections or 21 are mandatory if the product speci- cation. The inch-pound units shall apply unless the M fication has a requirement for product analysis or flattening designation SI of the product specification is specified in the tests. order. Section 22 is mandatory if the product specification has NOTE 1 The dimensionless designator NPS nominal pipe size has a hydrostatic test requirement without defining the test param- been substituted in this standard for such traditional terms as nominal eters. diameter size and nominal size. Section 14 is for information only. This standard does not purport to address all of the