ASTM D2925-01

Standard Test Method for Beam Deflection of "Fiberglass" (Glass-Fiber-Reinforced Thermosetting Resin) Pipe Under Full Bore Flow

SCOPE
1.1 This test method covers measurement of the deflection as a function of time of a specimen of fiberglass pipe supported on a flat non-arced support as a simple beam under full bore flow of water at elevated temperatures. Both glass-fiber-reinforced thermosetting-resin pipe (RTRP) and glass-fiber-reinforced polymer mortar pipe (RPMP) are fiberglass pipes.
Note 1—For the purposes of this standard, polymer does not include natural polymers.
1.2 This test method can be used to determine deflection at varying conditions by substituting other test media.
1.3 Deflections observed using this test method are representative only of piping supported as a simple beam under full bore flow which has one diameter of pipe overhanging at each support.
1.4 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are provided for information purposes only.
Note 1—There is no or equivalent ISO standard.
1.5  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.

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 D2925-95(2000)e1 - Standard Test Method for Beam Deflection of "Fiberglass" (Glass-Fiber-Reinforced Thermosetting Resin) Pipe Under Full Bore Flow
• Effective Date: 10-Jun-2001
• Replaced By: ASTM D2925-01(2007)e1 - Standard Test Method for Beam Deflection of "Fiberglass" (Glass-Fiber-Reinforced Thermosetting Resin) Pipe Under Full Bore Flow
• Effective Date: 01-Mar-2007

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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 2925 – 01
Standard Test Method for
Beam Deflection of “Fiberglass” (Glass-Fiber-Reinforced
1
Thermosetting Resin) Pipe Under Full Bore Flow
This standard is issued under the fixed designation D 2925; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope * glass”(Glass-Fiber-ReinforcedThermosetting-Resin)Pipe
4
and Fittings
1.1 This test method covers measurement of the deflection
4
F412 Terminology Relating to Plastic Piping Systems
asafunctionoftimeofaspecimenoffiberglasspipesupported
on a flat non-arced support as a simple beam under full bore
3. Terminology
flow of water at elevated temperatures. Both glass-fiber-
3.1 General—DefinitionsareinaccordancewithTerminolo-
reinforced thermosetting-resin pipe (RTRP) and glass-fiber-
gies D883 and F412 and abbreviations are in accordance with
reinforced polymer mortar pipe (RPMP) are fiberglass pipes.
Terminology D1600, unless otherwise indicated.
NOTE 1—For the purposes of this standard, polymer does not include
3.2 Definitions of Terms Specific to This Standard:
natural polymers.
3.2.1 aggregate— a siliceous sand conforming to the re-
1.2 This test method can be used to determine deflection at
quirements of Specification C33, except that the requirements
varying conditions by substituting other test media.
for gradation shall not apply.
1.3 Deflections observed using this test method are repre-
3.2.2 fiberglass pipe—a tubular product containing glass
sentative only of piping supported as a simple beam under full
fiber reinforcement embedded in or surrounded by cured
bore flow which has one diameter of pipe overhanging at each
thermosetting resin; the composite structure may contain
support.
aggregate, granular or platelet fillers, thixotropic agents, pig-
1.4 The values stated in SI units are to be regarded as the
ments, or dyes; thermoplastic or thermosetting liners may be
standard. The values given in parentheses are provided for
included.
information purposes only.
3.2.3 reinforced thermosetting resin pipe (RTRP)—a fiber-
glass pipe without aggregate.
NOTE 2—There is no or equivalent ISO standard.
3.2.4 reinforced polymer mortar pipe (RPMP)—a fiberglass
1.5 This standard does not purport to address all of the
pipe with aggregate.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
4. Significance and Use
priate safety and health practices and determine the applica-
4.1 In the absence of deflection measurements from actual
bility of regulatory limitations prior to use.
installed-above-ground piping, this test method may be used to
evaluatetheinfluenceofspanlengthonmid-spandeflectionsat
2. Referenced Documents
differing temperatures under full bore flow.
2.1 ASTM Standards:
2
NOTE 3—A flat bearing area, small contact area, and narrow bearing
C33 Specification for Concrete Aggregates
width may induce high localized support interaction stresses, and con-
3
D883 Terminology Relating to Plastics
straints imposed by the supports may also adversely influence deflections
D1600 Terminology for Abbreviated Terms Relating to
and performance of the pipe.
3
Plastics
D3567 Practice for Determining Dimensions of “Fiber- 5. Apparatus
1
5.1 Rigid Support with edges rounded to a 6-mm ( ⁄4-in.)
radius, consisting of two uprights of a convenient height. The
1
This test method is under the jurisdiction ofASTM Committee D20 on Plastics
uprights are to be spaced at a predetermined distance over
and is the direct responsibility of Subcommittee D20.23 on Reinforced Plastic
which deflection is to be determined as shown on Fig. 1. The
Piping Systems.
Current edition approved June 10, 2001. Published August 2001. Originally
published as D2925–70. Last previous edition D2925–95(2000).
2
Annual Book of ASTM Standards, Vol 04.02.
3 4
Annual Book of ASTM Standards, Vol 08.01. Annual Book of ASTM Standards, Vol 08.04.
*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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D 2925
FIG. 1 Schematic of Test Specimen Support
uprights shall have lateral guides, a saddle, groove, or inden- 5.2 Source of Hot Water and a Feed System maintained at
tation on the top to keep the pipe specimen from rolling off conditions such that when this source is coupled to the pipe
when placed in position. specimen and the water is fed into the specimen, the water
5.1.1 The support space distance shall be estimated for a emerging fro
...