Reference

Standard

Title

Year

Finding

[154] [155]

ASTM F 2263

& ASTM F 2023

Chlorine resistance test method for PEX pipes

2003 and 2004

PE (2263) and PEX (2023) pipe exposed to pressurized test-fluid until failure. Air is the external environment. Min. pipe length is 12 - 18 in. Test solution oxidation reduction potential (ORP) should be 825 mV. Flow velocity _0.04 m/s. Conduct at 3 temperature and 2 pressure/temperature Record time-to-failure for each specimen.

[129]

NSF International

NSF Protocol – Chlorine resistant of plastic piping materials.

1999

Ageing solution is continuously pumped around a closed pressurized pipe circulation loop or once through and not recirculated. Air is the external environment. Initial TDS _ 20 mg/L. Flow rate of 0.227 m³/hr. Conduct at 3 temperature and 2 Pressure/temperature Condition pipe using 66_ C test water for 2 h. Hourly record temperature, pressure, chlorine level, pH, ORP, and flow rate

[156]

ASTM D 6284

Standard test method for rubber-property effect of aqueous solutions with available chlorine and chloramines

1998

Rubber-like materials are immersed in bottles that contain a chlorinated water solution. Air is the external environment. Immersion periods range from 22 - 4366 h. Solutions must be changed every 48 h or more frequent