Standards and specifications adopted by reference in this Standard are shown in Annex A, which is part of this Standard. It is not considered practical to identify the specific edition of each standard and specification in the individual references. Instead, the specific edition reference is identified in Annex A.Codes and Standards ASME B16.48.
6.1 General ASME B16.48
Line blanks conforming to this Standard shall be marked as follows:
(b) nominal size (NPS)
(c) nominal pressure class
(d) material, specification, and grade or class
(e) manufacturer’s name or trademark
f) ring number (if applicable)