WAC 296-826-30015   Nonrefrigerated stationary containers.       You must:

     • Construct and test containers according to the Unfired Pressure Vessel Code.

     • Make sure the minimum design pressure of the container is 250 psig

     • Make sure all containers with a capacity exceeding two hundred fifty gallons are constructed to meet one or more of the following:

     – Stress relieved after fabrication according to the Unfired Pressure Vessel Code

     – Have stress relieved cold-formed heads

     – Hot-formed heads



[Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, 49.17.060. 06-10-067, § 296-826-30015, filed 5/2/06, effective 9/1/06.]