Wash. Admin. Code § 296-826-30020 – Refrigerated storage

(1) You must make sure the minimum design temperature is the same as the refrigerated temperature of the tank.
(2) You must construct and test containers, with a design pressure exceeding 15 psig, according to the Unfired Pressure Vessel Code.
(3) You must select construction materials from those listed from API Standard 620, 4th Edition 2002, Recommended Rules for Design and Construction of Large, Welded Low Pressure Storage Tanks.
(4) You must construct tanks with a design pressure with 15 psig or less according to API Standard 620, 4th Edition, 2002.
(5) You must use ASME Code as a guide in the selection of austenitic steels or nonferrous materials, if used at the design temperature.

[Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050. WSR 15-23-086, § 296-826-30020, filed 11/17/15, effective 12/18/15. Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, 49.17.060. WSR 06-10-067, § 296-826-30020, filed 5/2/06, effective 9/1/06.]