Storage containers must be designed and classified according to Table U-8.
TABLE U-8
Minimum design pressures 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 Code (Par. U-200, U-201); 1950, 1952, 1956, 1959, 1962, 1965, and 968 - (Division I) editions of ASME Code; All editions of API-ASMECode3 |
801 | 801 | 801 | 1001 |
100 | 100 | 100 | 125 |
125 | 125 | 125 | 156 |
150 | 150 | 150 | 187 |
175 | 175 | 175 | 219 |
2002 | 215 | 200 | 250 |
1 New type 80 storage containers have not been authorized since Dec. 31, 1947.
2 Container type may be increased by increments of 25. The minimum design pressure of containers must be 100% of the container type designations when constructed under 1949 or earlier editions of the ASME Code (Par. U-68 and U-69). The minimum design pressure of containers must be 125% of the container type designation when constructed under:
3 Construction of containers under the API-ASME Code is prohibited after July 1, 1961.
Wash. Admin. Code § 296-307-42003
97-09-013, recodified as § 296-307-42003, filed 4/7/97, effective 4/7/97. Statutory Authority: RCW 49.17.040,[49.17.]050 and [49.17.]060. 96-22-048, § 296-306A-42003, filed 10/31/96, effective 12/1/96.