无压力管道严密性试验允许渗水量无压力管道严密性试验允许渗水量管材管道内径（mm）允许渗水量（m3/(24hkm)）允许渗水（m3/(1/2hm)）钢筋混凝土管20017.600.0003730021.620.0004540025.000.0005250027.950.0005860030.600.0006470033.000.0006980035.350.00074HDPE 管 UPVC 管20010.560.00022(0.22L）30012.970.00027(0.27L) 40015.000.00031(0.31L) 50016.770.00035(0.35L) 60018.360.00038(0.38L) 70019.80.00041(0.41L) 80021.210.00044(0.44L)