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ASTM D 1599

Standard test method for resistance to short-time hydraulic pressure of plastic pipe, tubing, and fittings; 1999

1999

Loading a pipe specimen to failure in a short-time interval by continuously increasing internal hydraulic-pressure. Air or water is the external environment. Increase the pressure uniformly until the specimen fails. The specimen should burst between 60 and 70 s.

Plastic Pipe Institute Statement A

PPI-Statement-A Relative Oxidative Aggressiveness of Chloramines and Free Chlorine

Disinfectants Used in Treated Potable Water on Cross-linked Polyethylene (PEX) Pipe

2013

After the testing was completed, failure times of the PEX pipe specimens tested with the free chlorine test fluid were compared to failure times of the PEX pipe specimens tested with the chloramines test fluid. The results showed pipe failure times approximately 40% longer when tested with chloramines, compared to testing with free chlorine in otherwise identical test conditions.

ASTM F876

ASTM F876 has four categories for chlorine resistance, as part of the Material Designation Code:

0: Not tested or not rated

1: 25% of time at 140˚F, 75% of time at 73.4˚F

3: 50% of time at 140˚F, 50% of time at 73.4˚F

5: 100% of time at 140˚F, 0% of time at 73.4˚F

ASTM F876 contains the actual performance requirements, in

Section 6.10: “PEX tubing intended for use in the transport of potable water shall have a minimum extrapolated time-to-time failure of 50 years when tested and evaluated in accordance with”