(1)Filling density. The percent ratio of the weight of the gas in a container to the weight of water the container will hold at 60°F. All containers must be filled according to the filling densities shown in Table U-4.
TABLE U-4
MAXIMUM PERMITTED FILLING DENSITY
| Aboveground containers | |
Specific Gravity at 60°F (15.6°C) | 0 to 1,200 U.S. gals. (1,000 imp. gal. 4,500 liters) total water cap | 0 to 1,200 U.S. gals. (1,000 imp. gal. 4,500 liters) total water cap | Underground containers, all capacities |
| Percent | Percent | Percent |
.496-.503 | 41 | 44 | 45 |
.504-.510 | 42 | 45 | 46 |
.511-.519 | 43 | 46 | 47 |
.520-.527 | 44 | 47 | 48 |
.528-.536 | 45 | 48 | 49 |
.537-.544 | 46 | 49 | 50 |
.545-.552 | 47 | 50 | 51 |
.553-.560 | 48 | 51 | 52 |
.561-.568 | 49 | 52 | 53 |
.569-.576 | 50 | 53 | 54 |
.577-.584 | 51 | 54 | 55 |
.585-.592 | 52 | 55 | 56 |
.593-.600 | 53 | 56 | 57 |
(2) Any container including mobile cargo tanks and portable tank containers regardless of size or construction, shipped under DOT jurisdiction or constructed according to DOT specifications must be charged according to DOT requirements.
(3) Exception: Portable containers not subject to DOT jurisdiction must be filled either by weight, or by volume using a fixed length dip tube gauging device.
[Statutory Authority: RCW
49.17.010,
49.17.040,
49.17.050, and
49.17.060. WSR 20-21-091, § 296-307-41037, filed 10/20/20, effective 11/20/20. WSR 97-09-013, recodified as § 296-307-41037, 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-41037, filed 10/31/96, effective 12/1/96.]