ASTM D5365-06

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

SIGNIFICANCE AND USE
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.
SCOPE
1.1 This test method covers a procedure for determining the long-term ring-bending strain (S b) 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.
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 similar or equivalent ISO standard.

General Information

• Status: Historical
• Publication Date: 31-Aug-2006
• ICS: 23.040.20 - Plastics pipes
• Technical Committee: D20 - Plastics
• Drafting Committee: D20.23 - Reinforced Thermosetting Resin Piping Systems and Chemical Equipment

Relations

• Replaces: ASTM D5365-01e1 - Standard Test Method for Long-Term Ring-Bending Strain of "Fiberglass" (Glass-Fiber-Reinforced Thermosetting-Resin) Pipe
• Effective Date: 01-Sep-2006

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
An American National Standard
Designation: D5365 – 06
Standard Test Method for
Long-Term Ring-Bending Strain of “Fiberglass” (Glass-
1
Fiber-Reinforced Thermosetting-Resin) Pipe
This standard is issued under the fixed designation D5365; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope* 3.2 Definitions of Terms Specific to This Standard:
3.2.1 end point—thefailureofthetestspecimen.Thefailure
1.1 Thistestmethodcoversaprocedurefordeterminingthe
mode may be catastrophic, characterized by a sudden fracture
long-term ring-bending strain (S ) of “fiberglass” pipe. Both
b
through the pipe wall in the area of greatest strain.
glass-fiber-reinforced thermosetting-resin pipe (RTRP) and
3.2.2 fiberglass pipe—tubularproductcontainingglass-fiber
glass-fiber-reinforced polymer mortar pipe (RPMP) are “fiber-
reinforcements embedded in or surrounded by curing thermo-
glass” pipes.
setting resin. The composite structure may contain aggregate,
1.2 The values stated in inch-pound units are to be regarded
granular or platelet fillers, thixotropic agents, pigments, or
as the standard. The SI units given in parentheses are for
dyes; thermoplastic or thermosetting liners or coatings may be
information only.
included.
1.3 This standard does not purport to address all of the
3.2.3 reinforced polymer mortar pipe (RPMP)—fiberglass
safety concerns, if any, associated with its use. It is the
pipe with aggregate.
responsibility of the user of this standard to establish appro-
3.2.4 reinforced thermosetting resin pipe (RTRP)—
priate safety and health practices and determine the applica-
fiberglass pipe without aggregate.
bility of regulatory limitations prior to use. Aspecific warning
statement is given in 9.5.
4. Summary of Test Method
NOTE 1—There is no similar or equivalent ISO standard.
4.1 This test method consists of subjecting submerged-pipe
ring specimens to various increasing deflections induced by a
2. Referenced Documents
constantloadandmonitoringthetimetofailure.Aminimumof
2
2.1 ASTM Standards:
18 samples are required. Test temperatures are obtained by
D883 Terminology Relating to Plastics
testing in a fluid environment where the temperature is
D1600 Terminology for Abbreviated Terms Relating to
controlled.
Plastics
4.2 The long-term ring-bending strain is obtained by an
D3567 Practice for Determining Dimensions of “Fiber-
extrapolation to 50 years of a log-log linear regression line for
glass” (Glass-Fiber-ReinforcedThermosetting Resin) Pipe
failure strain versus time.
and Fittings
NOTE 2—It is the consensus of Subcommittee D 20.23 that the log-log
linear regression analysis of test data is a conservative approach and is
3. Terminology
representative of standard industry practice. However, a task group has
3.1 Definitions:
been formed to evaluate alternative non-linear analysis methods.
3.1.1 General—Definitions are in accordance with Termi-
nology D883 and abbreviations are in accordance with Termi-
5. Significance and Use
nology D1600 unless otherwise indicated.
5.1 This test method determines the long-term ring-bending
strain of pipe when deflected under constant load and im-
1
mersed in a chemical environment. It has been found that
ThistestmethodisunderthejurisdictionofASTMCommitteeD20onPlastics
and is the direct responsibility of Subcommittee D20.23 on Reinforced Plastic
effects of chemical environments can be accelerated by strain
Piping Systems and Chemical Equipment.
inducedbydeflection.Thisinformationisusefulandnecessary
Current edition approved September 1, 2006. Published September 2006.
for the design and application of buried fiberglass pipe.
Originally approved in 1993. Last previous edition approved in 2001 as
´1
D5365-01 . DOI: 10.1520/D5365-06.
NOTE 3—Pipe of the same diameter but of different wall thicknesses
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
will develop different strains with the same deflection.Also, pipes having
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
the same wall thickness but different constructions making up the wall
Standards volume information, refer to the standard’s Document Summary page on
may develop different strains with the same deflection.
the ASTM website.
*A Summary of Changes section appears at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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D5365 – 06
6. Apparatus
6.1 Loading Device—Thetestingapparatusshallbesuitable
for maintaining a constant load on the test specime
...