These standards apply to threaded or rigid PVC (rigid polyvinyl chloride) pipes type PVC 60 and PVC 100, intended for the production of potable water under pressure, at a temperature less than or equal to 30° C.
NORVEN 518-1973 history
1973NORVEN 518-1973 Venezuelan national standards regarding pressure-bearing unthreaded PVC pipes (polyvinyl alcohol) for conveying drinking water