The Need to Revise is 1167, Dealing with Pressure Testing

The influence of test conditions and important test parameters on the resistance of uPVC pipe to internal water pressure is investigated, It is shown that failure time depends on the method of clamping and free sample !ength. The relation between temperature and failure tinie/failure mechanism is studied at 20 OC and 60 OC. It appears that use of lubricants and presence of impurities in the test water can seriously influence results. The observed phenomena are discussed in relation to IS 1167, the international standard that describes the test method.