Investigation and comparison of accelerated pipe testing data with true pipe installations in contact with chlorine dioxide as disinfectant
Jarno Hassinena and Karin Jacobsonb
Papers # 2012 Barcelona
This paper discusses the mechanisms responsible for the degradation of polyolefin
pipes in chlorine dioxide. Studies of random co-polymer polypropylene, PP-R pipes
that have been exposed in service connected to ClO2 disinfection systems are
compared to data generated at accelerated laboratory conditions. The test method of
ASTM F2023 with chlorine dioxide has been used to generate the accelerated
chlorine oxidative data. Post exposure investigations used in this study focus on
failure mechanism, morphology studies, additive degradation and polymer
degradation. Findings are aimed to give guidance of the ASTM F2023 method’s
suitability for ClO2 studies and include also a discussion of accelerated testing using
high concentration of chlorine as acceleration parameter versus accelerated testing
with relatively low concentrations, similar to those find in service, and high
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This paper discusses the mechanisms responsible for the degradation of polyolefin pipes in chlorine dioxide. Studies of random co-polymer polypropylene, PP-R pipes that have been exposed in service connected to ClO2 disinfection systems are compared to data generated at accelerated laboratory conditions. The test...