Exception: | Construction under Table UW-12 at a basic joint efficiency of under 80% is prohibited. Containers built according to code are exempt from paragraphs UG-125 to UG-128, inclusive, and paragraphs UG-132 and UG-133 of the code. |
Note: | This subsection allows the continued use or reinstallation of containers constructed and maintained according to the 1949, 1950, 1952, 1956, 1959, 1962, 1965 and 1968 editions of the Unfired Pressure Vessel Code of the ASME or any revisions thereof in effect at the time of fabrication. |
(2) Containers more than 36 inches in diameter or 250 gallons water capacity must be constructed to meet one or more of the following requirements:
(a) Containers must be stress relieved after fabrication according to the code; or
(b) Cold-formed heads, when used, must be stress relieved; or
(c) Hot-formed heads must be used.
(3) Welding to the shell, head, or any other part of the container subject to internal pressure must be according to the code. Other welding is permitted only on saddle plates, lugs, or brackets attached to the container by the container manufacturer.
Containers used with systems covered in subsection (4) of this section must be constructed and tested in accordance with the DOT specifications.
(4) Containers must comply with department of transportation specifications and must be maintained, filed, packaged, marked, labeled and shipped to comply with current DOT regulations and American National Standard Method of Marking Portable Compressed Gas Containers to Identify the Material Contained, Z48.1-1954 R1970. See Appendix C for availability.
[Statutory Authority: RCW
49.17.010,
49.17.040,
49.17.050, and
49.17.060. WSR 20-21-091, § 296-307-40013, filed 10/20/20, effective 11/20/20; WSR 03-10-068, § 296-307-40013, filed 5/6/03, effective 8/1/03. Statutory Authority: RCW
49.17.040. WSR 98-24-096, § 296-307-40013, filed 12/1/98, effective 3/1/99. WSR 97-09-013, recodified as § 296-307-40013, filed 4/7/97, effective 4/7/97. Statutory Authority: RCW
49.17.040, [49.17.]050 and [49.17.]060. WSR 96-22-048, § 296-306A-40013, filed 10/31/96, effective 12/1/96.]