New Zealand Agricultural Engineering Institute2024-12-042024-12-041968-07https://hdl.handle.net/10182/17887A full description of test procedures and equipment is contained in Project Report P/3 of the New Zealand Agricultural Engineering Institute issued in July 1968. The samples of pipe submitted for test satisfied the requirements of the test procedure in all respects. The detailed results of the testing are given in this report.4 pages© NZAEItractor safetysafety framesLaboratory tests for trench laid plastic drainage pipe of up to 4 inches diameterReportANZSRC::400204 Automotive safety engineering