Teat Standard and Requirement of Pressurized Polyethylene Piping and Resistibility of Slow Crack Growth

doi:10.19491/j.issn.1001-9278.2008.10.020

China Plastics ›› 2008, Vol. 22 ›› Issue (10): 90-94 .DOI: 10.19491/j.issn.1001-9278.2008.10.020

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Teat Standard and Requirement of Pressurized Polyethylene Piping and Resistibility of Slow Crack Growth

Zhao Qi-hui

Georg Fischer Piping Systems Ltd, Shanghai 201319, China

Received:1900-01-01 Revised:1900-01-01 Online:2008-10-25 Published:2008-10-25

Abstract

Abstract: Cracks possibly appear and then grow slowly through Polyethylene pipes during installation and service life. To evaluating slow crack growth resistance (SCG) property, there are two different test methods for natural resin and piping product. International and national standards correlated with SCG’s requirements, principles and applications are introduced. Meantime several accelerating methods by cutting a notch for predicting longtime hydrostatic property and final life of Polyethylene resin are also exampled.

Key words: polyethylene, pipes, resistibility of slow crack growth, lifetime

Zhao Qi-hui. Teat Standard and Requirement of Pressurized Polyethylene Piping and Resistibility of Slow Crack Growth[J]. China Plastics, 2008, 22(10): 90-94 .

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Teat Standard and Requirement of Pressurized Polyethylene Piping and Resistibility of Slow Crack Growth

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