ASTM E 1974 – 01a pdf free download - Civil Engineers Standards

Standard Speciﬁcation for Shelter, Electrical, Equipment S-250/G1

This standard is issued under the ﬁxed designation E 1974; 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 (e) indicates an editorial change since the last revision or reapproval.