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Compare Pressure-Pipe Rating Methods at November Workshop

The workshop, “Comparison of Plastic Pipe Pressure Rating Methods - ASTM D 2837 and ISO 9080,” will be held Wed., Nov. 6, 7- 9 p.m. at ASTM November Committee Week in Miami. The Plastics Pipe Institute will host the workshop in conjunction with ASTM Committee F17 on Plastic Piping Systems.

Presenters will discuss usage of the following standards:

• ASTM D 2837, Standard Test Method for Obtaining Hydrostatic Design Basis for Thermoplastic Pipe Materials (2001); and
• ISO/TR 9080: Thermoplastics pipes for the transport of fluids—Methods of extrapolation of hydrostatic stress rupture data to determine the long-term hydrostatic strength of thermoplastics pipe materials (1992).

“There has been a lot of interest in the ISO 9080 method recently and there are some projects to include this international rating method in ASTM F 17 standards,” says Gene Palermo, Ph.D., technical director, Plastics Pipe Institute, Washington, D.C. “Despite this interest, there is still a lot of confusion about the two methods—how they are similar and how they differ. In particular, there is also confusion about the respective design factors that are used with each method to arrive at a pressure rating for the pipe.

“We feel this workshop would be helpful for the industry (resin and pipe manufacturers, end users and other interested parties) not only as a means of education, but also as a means of collectively deciding how to go forward with the proper introduction and use of this international rating method.”

To participate or obtain further technical information, contact Gene Palermo, Ph.D., Plastics Pipe Institute, Washington, D.C. (phone; 202/462-9607 ext. 11). Committee F17 meets Nov. 4-7 in Miami Beach. For meeting or membership details, contact Bob Morgan, director, Technical Committee Operations, ASTM International (phone: 610/832- 9732). //

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