Source

Title

Year

Material

Temp.

pH

Time

Disinfectant Conc.

Finding

Vibien et al.

Chlorine resistance testing of cross linked

2001

PEX

115

6.5 - 6.6

702 - 5890 Hrs

Chlorine

PEX plumbing pipe is subjected to 4 - 3 ppm chlorine at elevated temperature and experience rapid oxidation of inner wall and subsequent britlle fracture of pipe, but extrapolated results of this accelerated aging indicate acceptable life at service temperatures.

Andrew J. Whelton

[73]

Critical consideration for the accelerated ageing of high density polyethylene potable water materials.

2009

HDPE

23˚C and 37˚C

6.5

72 Hr

50 ppm, 5000 ppm Cl₂

Of the ten condtions tested, three condtins with an alkalinity concentration of 50 ppm as CaCO₃

Hassinen et al. [14]

Deterioration polyethylene pipes exposed to chlorinated water

2004

HDPE

95 - 105

6.45

0 - 809 Hrs

Chlorine

Antioxidant were raplildy consumed by relatively low chlorine concentration (3 ppm). Polymer degradation appeared to be confined to the inner surface and strated when the antioxidant system was depleted at the inner pipe wall.

Lundback

[15]

Long Term Performance of Polyolefins in different enviorment including chlorinated water antioxidant consumption and migration and polymer degradation

2005

HDPE

90 - 115

6.1 - 6.7

29 - 318 days

Chlorine

Chemical stabilizer were rapidly consumed by relatively low chlorine concentration (0.5 - 1.5 ppm)