ASTM D3681-01

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

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 plastic 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: 09-Jun-2001
• 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 D3681-96 - Standard Test Method for Chemical Resistance of "Fiberglass" (Glass-Fiber-Reinforced Thermosetting-Resin) Pipe in a Deflected Condition
• Effective Date: 10-Jun-2001
• Replaced By: ASTM D3681-01e1 - Standard Test Method for Chemical Resistance of "Fiberglass" (Glass-Fiber-Reinforced Thermosetting-Resin) Pipe in a Deflected Condition
• Effective Date: 10-Jun-2001
• Referred By: ASTM D6783-05a(2022) - Standard Specification for Polymer Concrete Pipe
• Effective Date: 10-Jun-2001
• 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: 10-Jun-2001
• Referred By: ASTM D3262-20 - Standard Specification for &#x201c;Fiberglass&#x201d; (Glass-Fiber-Reinforced Thermosetting-Resin) Sewer Pipe
• Effective Date: 10-Jun-2001
• 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: 10-Jun-2001
• Referred By: ASTM C582-23 - Standard Specification for Contact-Molded Reinforced Thermosetting Plastic (RTP) Laminates for Corrosion-Resistant Equipment
• Effective Date: 10-Jun-2001
• Referred By: ASTM D3754-19 - Standard Specification for &#x201c;Fiberglass&#x201d; (Glass-Fiber-Reinforced Thermosetting-Resin) Sewer and Industrial Pressure Pipe
• Effective Date: 10-Jun-2001
• Referred By: ASTM D6041-23 - Standard Specification for Contact-Molded “Fiberglass” (Glass-Fiber-Reinforced Thermosetting Resin) Corrosion Resistant Pipe and Fittings
• Effective Date: 10-Jun-2001
• Referred By: ASTM D5813-04(2018) - Standard Specification for Cured-In-Place Thermosetting Resin Sewer Piping Systems
• Effective Date: 10-Jun-2001

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: D 3681 – 01
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 D 3681; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope* strophic, characterized by a sudden fracture through the pipe
wall in the area of greatest strain, parallel to the axis of the
1.1 This test method covers the procedure for determining
pipe,withthefiberreinforcementcleanlybrokenattheedgeof
the chemical-resistant properties of fiberglass pipe in a de-
the fracture. Visual evidence of surface etching or pitting may
flectedconditionfordiameters4in.(102mm)andlarger.Both
or may not be present.
glass–fiber–reinforced thermosetting resin pipe (RTRP) and
3.2.2 fiberglass pipe—tubular product containing glass
glass–fiber–reinforced polymer mortar pipe (RPMP) are fiber-
fiber reinforcements embedded in or surrounded by cured
glass pipes.
thermosetting resin. The composite structure may contain
NOTE 1—For the purposes for this standard, polymer does not include
aggregate, granular or platelet fillers, thixotropic agents, pig-
natural polymers.
ments, or dyes. Thermoplastic or thermosetting liners or
1.2 Inch-poundunitsaretoberegardedasthestandard.The
coatings may be included.
values given in parentheses are for information only.
3.2.3 reinforced polymer mortar pipe—fiberglass pipe
1.3 This standard does not purport to address all of the
with aggregate.
safety concerns, if any, associated with its use. It is the
3.2.4 reinforced thermosetting resin pipe—fiberglass pipe
responsibility of the user of this standard to establish appro-
without aggregate.
priate safety and health practices and determine the applica-
3.2.5 strain-corrosion—the failure of the pipe wall caused
bility of regulatory limitations prior to use. Specific precau-
by the exposure of the inside surface, while in a strained
tionary statements are given in 9.5.
condition, to a corrosive environment for a period of time.
NOTE 2—There is no similar or equivalent ISO standard.
4. Summary of Test Method
2. Referenced Documents 4.1 This test method consists of exposing the interior of a
minimum of 18 specimens of pipe to a corrosive test solution
2.1 ASTM Standards:
2
whilethepipeisconstantlymaintainedinadeflectedcondition
D883 Terminology Relating to Plastics
at differing induced initial ring flexural strain levels, and
D1600 Terminology for Abbreviated Terms Relating to
2
measuring the time to failure for each strain level. Test
Plastics
temperatures are obtained by testing in an air environment
3. Terminology
where the temperature is controlled.
4.2 The long-term resistance of the pipe to the test solution
3.1 Definitions:
is obtained by an extrapolation to 50 years of a log-log linear
3.1.1 General—Definitions are in accordance with Termi-
regression line for initial strain level versus time.
nology D883 and abbreviations are in accordance withTermi-
nology D1600 unless otherwise indicated.
NOTE 3—It is the consensus of Subcommittee D20.23 that the log–log
3.2 Definitions of Terms Specific to This Standard: Descrip-
linear regression analysis of test data is a conservative approach and is
tions of Terms Specific to This Standard: representative of standard industry practice. However, a task group has
been formed to evaluate alternative non-linear analysis methods.
3.2.1 end point—the passage of the fluid through the pipe
wall unless otherwise stated. The failure mode may be cata-
5. Significance and Use
5.1 This test method evaluates the effect of a chemical
1
ThistestmethodisunderthejurisdictionofASTMCommitteeD20onPlastics
environmentonpipewheninadeflectedcondition.Ithasbeen
and is the direct responsibility of Subcommittee D20.23 on Reinforced Plastic
foundthateffectsofchemicalenvironmentscanbeaccelerated
Piping Systems and Chemical Equipment.
Current edition approved June 10, 2001. Published August 2001. Originally
published as D3681–78. Last previous edition D3681–96.
2
Annual Book of ASTM Standards, Vol 08.01.
*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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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.
D 3681 – 01
by strain induced by deflection. This information is useful and 9.2 Determination of Test L
...