Standard Terminology Relating to
Plastic Piping Systems1
This trendy is issued under the constant designation f 412; the quantity without delay following the designation indicates the 12 months of
authentic adoption or, inside the case of revision, the year of closing revision. more than a few in parentheses shows the 12 months of ultimate reapproval. a
superscript epsilon (e) shows an editorial change because the last revision or reapproval.
This widespread has been accredited for use via businesses of the branch of protection.
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