296-307-44001  <<  296-307-44003 >>   296-307-44005

WAC 296-307-44003

How must storage containers be designed and classified?

Storage containers must be designed and classified according to the following table:
Minimum design pressure of
container lb. per sp. in. gauge
Container type
For gases with vapor press. Not to exceed lb. per sp. in. gauge 100°F (37.8°C.)
1949 and earlier editions of ASME Code (Par. U-68, U-69)
1949 edition of ASME Code (Par.U-200, U-201); 1950, 1952, 1956, 1959, 1962, 1965, and 1968 (Division I) editions of ASME Code; All editions of API-ASME Code2
2001
215
200
250
1
Container type may be increased by increments of 25. The minimum design pressure of containers shall be 100% of the container type designation when constructed under 1949 or earlier editions of ASME Code (Par. U-68 and U-69). The minimum design pressure of containers shall be 125% of the container type designation when constructed under: 1. The 1949 ASME Code (Par. U-200 and U-201), 2. 1950, 1952, 1956, 1959, 1962, 1965, and 1968 (Division I) editions of the ASME Code, and 3. All editions of the API-ASME Code.
2
Construction of containers under the API-ASME Code is not authorized after July 1, 1961.
[WSR 97-09-013, recodified as § 296-307-44003, 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-44003, filed 10/31/96, effective 12/1/96.]
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