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ASTM D5365-12

Historical Revision

Standard Test Method for Long-Term Ring-Bending Strain of “Fiberglass” (Glass-Fiber-Reinforced Thermosetting-Resin) Pipe

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1.1 This test method covers a procedure for determining the long-term ring-bending strain (Sb) of fiberglass pipe. Both glass-fiber-reinforced thermosetting-resin pipe (RTRP) and glass-fiber-reinforced polymer mortar pipe (RPMP) are fiberglass pipes.

1.2 The values stated in inch-pound units are to be regarded as the standard. The SI units given in parentheses are for information only.

1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. A specific warning statement is given in 9.5.

Note 1—There is no known ISO equivalent to this standard.


This test method determines the long-term ring-bending strain of pipe when deflected under constant load and immersed in a chemical environment. It has been found that effects of chemical environments can be accelerated by strain induced by deflection. This information is useful and necessary for the design and application of buried fiberglass pipe.

Note 3—Pipe of the same diameter but of different wall thicknesses will develop different strains with the same deflection. Also, pipes having the same wall thickness but different constructions making up the wall may develop different strains with the same deflection.

SDO ASTM: ASTM International
Document Number D5365
Publication Date April 1, 2012
Language en - English
Page Count 8
Revision Level 12
Supercedes
Committee D20.23
Publish Date Document Id Type View
July 1, 2023 D5365-23 Revision
Aug. 1, 2018 D5365-18 Revision
April 1, 2012 D5365-12 Revision
Sept. 1, 2006 D5365-06 Revision
Sept. 10, 2001 D5365-99 Revision
Sept. 10, 2001 D5365-01E01 Revision
Sept. 10, 2001 D5365-01 Revision