Standard Testing of Pipes and the Examination of Failures

The paper reviews the current Standards for plastics pipe testing explaining the significance of the results achieved In the second half of the paper a number of investigations into pipe failures are described showing the method of attacking such a problem and the tools used in the obtaining of the solutions. Amongst the causes for failure have been incorrect back filling, impurities in the sample, incorrect processing conditions and interaction between insulation and PVC pipe under moist conditions