Procedures for testing trench laid plastic drain pipes up to four inches in diameter

Abstract

The test procedure described in this report is based on the current British provisional specification for trench laid plastic drain pipes of up to 4 inches in diameter. This specification was recently accepted as a possible basis for a West European specification by representatives from the United Kingdom, Holland, Belgium and Germany. This Project Report will be followed from time to time by individual Test Reports of tests carried out on commercially available plastic drainage pipes in New Zealand.