Full Text
APPENDIX TABLE 1 AIR TESTING PVC, TRUSS PIPE SANITARY SEWER Pipe Dia. (Inch) Minimum Time (Min: Sec) Length For Min. Time (Foot) Time For Longer Length (Sec) SPECIFICATION TIME FOR LENGTH SHOWN (MIN: SEC) 100 ft. 150 ft. 200 ft. 250 ft. 300 ft. 350 ft. 400 ft. 450 ft. 4 3:46 597 .38L 3:46 3:46 6 5:40 398 .85L 5:40 5:40 5:42 6:24 8 7:34 298 1.52L 7:34 7:34 7:36 8:52 10:08 11:24 10 9:26 239 2.37L 9:26 9:26 9:53 11:52 13:51 15:49 17:48 12 11:20 199 3.42L 11:20 11:20 11:24 14:15 17:05 19:56 22:47 25:38 15 14:10 159 5.34L 14:10 14:10 17:48 22:15 26:42 31:09 35:36 40:04 18 17:00 133 7.69L 17:00 19:13 25:38 32:03 38:27 44:52 51:16 57:41 21 19:50 114 10.47L 19:50 26:10 34:54 43:37 52:21 61:00 69:48 78:31 24 22:40 99 13.67L 22:47 34:11 45:34 56:58 68:22 79:46 91:10 102:33 27 25:30 88 17.31L 28:51 43:16 57:41 72:07 86:32 100:57 115:22 129:48 30 28:20 80 21.37L 35:37 53:25 71:13 89:02 106:50 124:38 142:26 160:15 33 31:10 72 25.85L 43:05 64:38 86:10 107:43 129:16 150:43 172:21 193:53 36 34:00 66 30.77L 51:17 76:55 102:34 128:12 153:50 179:29 205:07 230:46 Notes: 1. Specification times above indicate the duration over which the loss of air pressure may not exceed a drop from 3.5 psig to 2.5 psig for the size and length of pipe indicated. 2. Increase test pressure 1.0 psig for every 2.31 feet the groundwater is above the invert of the sewer. 3. Table based on ASTM F1417