ASTM D3681-06

Standard Test Method for Chemical Resistance of "Fiberglass" (Glass-Fiber-Reinforced Thermosetting-Resin) Pipe in a Deflected Condition

SIGNIFICANCE AND USE
This test method evaluates the effect of a chemical environment on pipe when in a deflected condition. 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 4—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 the procedure for determining the chemical-resistant properties of fiberglass pipe in a deflected condition for diameters 4 in. (102 mm) and larger. Both glass-fiber-reinforced thermosetting resin pipe (RTRP) and glass-fiber-reinforced polymer mortar pipe (RPMP) are fiberglass pipes.
Note 1—For the purposes for this standard, polymer does not include natural polymers.
1.2 Inch-pound units are to be regarded as the standard. The values 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. Specific precautionary statements are given in 9.5.
Note 2—There is no similar or equivalent ISO standard.

General Information

• Status: Historical
• Publication Date: 14-Oct-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 D3681-01e1 - Standard Test Method for Chemical Resistance of "Fiberglass" (Glass-Fiber-Reinforced Thermosetting-Resin) Pipe in a Deflected Condition
• Effective Date: 15-Oct-2006
• Replaced By: ASTM D3681-12 - Standard Test Method for Chemical Resistance of “Fiberglass” (Glass–Fiber–Reinforced Thermosetting-Resin) Pipe in a Deflected Condition
• Effective Date: 01-Apr-2012
• Referred By: ASTM D3262-20 - Standard Specification for “Fiberglass” (Glass-Fiber-Reinforced Thermosetting-Resin) Sewer Pipe
• Effective Date: 15-Oct-2006
• Referred By: ASTM D6783-05a(2022) - Standard Specification for Polymer Concrete Pipe
• Effective Date: 15-Oct-2006
• Referred By: ASTM D5813-04(2018) - Standard Specification for Cured-In-Place Thermosetting Resin Sewer Piping Systems
• Effective Date: 15-Oct-2006
• Referred By: ASTM C582-23 - Standard Specification for Contact-Molded Reinforced Thermosetting Plastic (RTP) Laminates for Corrosion-Resistant Equipment
• Effective Date: 15-Oct-2006
• Referred By: ASTM F2561-20 - Standard Practice for Rehabilitation of a Sewer Service Lateral and Its Connection to the Main Using a One Piece Main and Lateral Cured-in-Place Liner
• Effective Date: 15-Oct-2006
• Referred By: ASTM D3754-19 - Standard Specification for “Fiberglass” (Glass-Fiber-Reinforced Thermosetting-Resin) Sewer and Industrial Pressure Pipe
• Effective Date: 15-Oct-2006
• Referred By: ASTM D6041-23 - Standard Specification for Contact-Molded “Fiberglass” (Glass-Fiber-Reinforced Thermosetting Resin) Corrosion Resistant Pipe and Fittings
• Effective Date: 15-Oct-2006
• Referred By: ASTM F2599-22 - Standard Practice for Sectional Repair of Damaged Pipe By Means of an Inverted Cured-In-Place Liner<rangeref></rangeref >
• Effective Date: 15-Oct-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: D3681 – 06
Standard Test Method for
Chemical Resistance of “Fiberglass”
(Glass–Fiber–Reinforced Thermosetting-Resin) Pipe in a
1
Deflected Condition
This standard is issued under the fixed designation D3681; 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.
3
1. Scope* 3 Preferred Numbers—Series of Preferred Numbers
1.1 This test method covers the procedure for determining
3. Terminology
the chemical-resistant properties of fiberglass pipe in a de-
3.1 Definitions:
flectedconditionfordiameters4in.(102mm)andlarger.Both
3.1.1 General—Definitions are in accordance with Termi-
glass–fiber–reinforced thermosetting resin pipe (RTRP) and
nology D883 and abbreviations are in accordance with Termi-
glass–fiber–reinforced polymer mortar pipe (RPMP) are fiber-
nology D1600 unless otherwise indicated.
glass pipes.
3.2 Definitions of Terms Specific to This Standard: Descrip-
NOTE 1—For the purposes for this standard, polymer does not include
tions of Terms Specific to This Standard:
natural polymers.
3.2.1 end point—the passage of the fluid through the pipe
1.2 Inch-poundunitsaretoberegardedasthestandard.The
wall unless otherwise stated. The failure mode may be cata-
values given in parentheses are for information only.
strophic, characterized by a sudden fracture through the pipe
1.3 This standard does not purport to address all of the
wall in the area of greatest strain, parallel to the axis of the
safety concerns, if any, associated with its use. It is the
pipe,withthefiberreinforcementcleanlybrokenattheedgeof
responsibility of the user of this standard to establish appro-
the fracture. Visual evidence of surface etching or pitting may
priate safety and health practices and determine the applica-
or may not be present.
bility of regulatory limitations prior to use. Specific precau-
3.2.2 fiberglass pipe—tubular product containing glass
tionary statements are given in 9.5.
fiber reinforcements embedded in or surrounded by cured
thermosetting resin. The composite structure may contain
NOTE 2—There is no similar or equivalent ISO standard.
aggregate, granular or platelet fillers, thixotropic agents, pig-
2. Referenced Documents ments, or dyes. Thermoplastic or thermosetting liners or
2 coatings may be included.
2.1 ASTM Standards:
3.2.3 reinforced polymer mortar pipe (RPMP)—fiberglass
D883 Terminology Relating to Plastics
pipe with aggregate.
D1600 Terminology for Abbreviated Terms Relating to
3.2.4 reinforced thermosetting resin pipe (RTRP)—
Plastics
fiberglass pipe without aggregate.
D3567 Practice for Determining Dimensions of “Fiber-
3.2.5 strain-corrosion—the failure of the pipe wall caused
glass” (Glass-Fiber-ReinforcedThermosetting Resin) Pipe
by the exposure of the inside surface, while in a strained
and Fittings
condition, to a corrosive environment for a period of time.
2.2 ISO Standard:
4. Summary of Test Method
1
ThistestmethodisunderthejurisdictionofASTMCommitteeD20onPlastics
4.1 This test method consists of exposing the interior of a
and is the direct responsibility of Subcommittee D20.23 on Reinforced Plastic
minimum of 18 specimens of pipe to a corrosive test solution
Piping Systems and Chemical Equipment.
whilethepipeisconstantlymaintainedinadeflectedcondition
Current edition approved Oct. 15, 2006. Published November 2006. Originally
´1
at differing induced initial ring flexural strain levels, and
approved in 1978. Last previous edition approved in 2001 as D3681–01 . DOI:
10.1520/D3681-06.
measuring the time to failure for each strain level. Test
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
3
Standards volume information, refer to the standard’s Document Summary page on Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
the ASTM website. 4th Floor, New York, NY 10036, http://www.ansi.org.
*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.
1

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D3681 – 06
temperatures are obtained by testing in an air environment run. The test specimens shall have a minimum length of one
where the temperature is controlled. nominal pipe diameter or 12 in. (300 mm) 6 5%, whichever
4.2 The long-term resistance of the pipe to the test solution is less.
is obtained by an extrapolation to 50 years of a log-log linear
regression line for initial strain level versus time.
8. Test Conditions
...