Side
af
880
Forrige
Næste
APPENDIX
791
WATER
Fresh. Sait.
Greatest density at 39-2° F. Freezing-point
1 cub. ft. at 39-2° weighs 62-348 1b. 64 1b.
1 cub. in. ,, „ •036081 1b. •037037 1b.
1 cub. ft. „ equals 6-228 gal. 6-2 gal.
1 gal. weighs 10 1b. 10-3 1b.
1. ton equals 35-943 cub. ft. 35 cub. ft.
1 ton contains 224 gal. 217 gal.
Freezes at 32° F. 27° F.
GAS METERS
Size of Meter. Normal Capacity. Safe Maximum Capacity.
Lights. Cub. ft. per hour. Cub. ft. per hour.
5 30 60
10 60 100
20 120 200
30 180 300
50 300 450
60 360 480
80 480 600
100 600 750
150 900 1,100
200 1,200 1,500
250 1,500 1,900
300 1,800 2,300
400 2,400 3,000
500 3,000 3,700
600 3,600 4,500
800 4,400 6,000
1,000 5,000 7,500