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Results and Experiences from Tests on PEX, PP and PVC Pipes Exposed to Different Chemicals [all materials]

 

# 1998 Gothenburg

This paper presents experimental data for PEX, PEM, PP and PVC pipes exposed to different chemicals. More than 150 plastic pipes of PEX, PEM, PP and PVC have been pressure tested with different chemicals. The chemicals used are; 97% Sulfuric acid, 100% Acetic acid, 30% Sodium hydroxide and a solution of 50% Trimethylbensene and 50% n-Decan. The results are compared with hydrostatic pressure tests in water. Extrapolation using Arrhenius are discussed and demonstrated. Discussions about the failure mechanisms are presented illustrated by fractography. Based on the results a description of a new testing procedure to investigate the chemical resistance for plastic pipes is also presented.

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