ASTM D3567-97(2002)
(Practice)Standard Practice for Determining Dimensions of "Fiberglass" (Glass-Fiber-Reinforced Thermosetting Resin) Pipe and Fittings
Standard Practice for Determining Dimensions of "Fiberglass" (Glass-Fiber-Reinforced Thermosetting Resin) Pipe and Fittings
SCOPE
1.1 This practice covers the determination of outside diameter, inside diameter, total wall thickness, reinforced wall thickness, liner thickness (where applicable), and length dimensions of "fiberglass" (glass-fiber-reinforced thermosetting resin) pipe. Included are procedures for measuring tapered dimensions and taper angles for pipe intended to be joined by tapered socket fittings, and procedures for gaging internal and external threads.
1.2 This practice also includes procedures for determining dimensions for fiberglass pipe fittings.
1.3 The values stated in inch-pound units are to be regarded as the standard. The SI units given in parentheses are for information only.
Note 1—There is no similar or equivalent ISO standard.
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of whoever uses this standard to consult and establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
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An American National Standard
Designation:D 3567–97 (Reapproved 2002)
Standard Practice for
Determining Dimensions of “Fiberglass” (Glass-Fiber-
Reinforced Thermosetting Resin) Pipe and Fittings
This standard is issued under the fixed designation D 3567; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope * 3. Terminology
1.1 This practice covers the determination of outside diam- 3.1 Definitions of Terms Specific to This Standard:
eter, inside diameter, total wall thickness, reinforced wall 3.1.1 deviation from straightness— the maximum deviation
thickness, liner thickness (where applicable), and length di- fromastraightlineexhibitedbyapipespecimendividedbythe
mensions of “fiberglass” (glass-fiber-reinforced thermosetting length of the specimen.
resin) pipe. Included are procedures for measuring tapered 3.1.2 fiberglass pipe—a tubular product containing glass-
dimensions and taper angles for pipe intended to be joined by fiber reinforcements embedded in or surrounded by cured
tapered socket fittings, and procedures for gaging internal and thermosetting resin; the composite structure may contain
external threads. aggregate, granular, or platelet fillers, thixotropic agents, pig-
1.2 This practice also includes procedures for determining ments, or dyes; thermoplastic or thermosetting liners or coat-
dimensions for fiberglass pipe fittings. ings may be included.
1.3 The values stated in inch-pound units are to be regarded 3.1.3 laying length of fittings—the actual increase in the
as the standard. The SI units given in parentheses are for length of a line afforded by the fitting when installed.
information only. 3.1.4 liner and exterior surface layer thicknesses—theinner
and outer portions of the wall used to enhance chemical and
NOTE 1—There is no similar or equivalent ISO standard.
water resistance; they may have a different composition than
1.4 This standard does not purport to address all of the
the reinforced wall and the thicknesses of these internal and
safety concerns, if any, associated with its use. It is the
external surfaces may be measured when their boundary limits
responsibility of whoever uses this standard to consult and
are visually indentifiable and if they are each at least 0.005 in.
establish appropriate safety and health practices and deter-
(0.10 mm) in thickness.
mine the applicability of regulatory limitations prior to use.
3.1.5 reinforced thermosetting resin pipe (RTRP)—a fiber-
glass pipe without aggregate.
2. Referenced Documents
3.1.6 reinforced wall thickness—the total wall thickness
2.1 ASTM Standards:
minus the liner or exterior surface layer thickness, or both.
D4166 Test Method for Measurement of Thickness of
Nonmagnetic Materials by Means of a Digital Magnetic 4. Significance and Use
Intensity Instrument
4.1 This practice provides for determining the physical
2.2 ANSI Standard:
dimensions of fiberglass pipe and fittings. This practice is
B2.1 Pipe Threads (Except Dryseal)
suitable for determination of dimensional compliance with
2.3 API Standard:
product specifications.
API5B Threading, Gaging, and Thread Inspection of Cas-
ing, Tubing, and Line Pipe Threads 5. Conditioning
5.1 Testconditionsformeasurementsshallbeinaccordance
with appropriate product specification(s).
ThispracticeisunderthejurisdictionofASTMCommitteeD20onPlasticsand
is the direct responsibility of Subcommittee D20.23 on Reinforced Plastic Piping
6. Total Wall Thickness—Pipe and Fittings
Systems and Chemical Equipment.
Current edition approved Nov. 10, 2002. Published March 2003. Originally
6.1 Apparatus—Calipers, optical comparators described in
approved in 1977. Last previous edition approved in 1997 as D3567–97.
Section 7, ultrasonic thickness meters, or other gages such as
Annual Book of ASTM Standards, Vol 08.04.
3 the digital magnetic intensity instrument described by Test
AvailablefromAmericanNationalStandardsInstitute,25West43rdStreet,4th
Floor, New York, NY 10036. Method D4166, with graduations of 0.01 in. (0.025 mm) or
AvailablefromAmericanPetroleumInstitute,1220LSt.,NW,Washington,DC
less that produces a thickness measuring accuracy of within
20005.
*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.
D 3567–97 (2002)
5%, may be used for measuring thicknesses of 0.20 in. (5.1 7.3.3 Surface Layer Thickness—If the product specification
mm) or greater. For thicknesses less than the above, use a requires surface layer measurement, set a major scale division
micrometer or other gage with graduations of 0.001 in. (0.025 attheapparentinterfacebetweenthecoatingandthereinforced
mm) and an accuracy of within 5%. Use a cylindrical tubing wall. Make 6 measurements 60° apart by reading toward the
micrometer or spherical anvil micrometer with a radius end outer surface of the pipe or fitting and observing the surface
where the diameter of the pipe is small and a measuring error layer thickness.
of 5% or less would be exceeded without its use. 7.3.4 Nonreinforced Layers, within the reinforced wall or
6.2 Procedure—Make a series of at least four readings at combination reinforcement layers. If the product involves
random selected locations, approximately equally spaced unreinforced layers or multiple reinforcement layers of differ-
around the circumference. The location of the measurements ent types, the amount and type of measurements shall be
should be taken some distance in from the pipe ends if the end agreed upon between the buyer and the seller.
thicknesswouldbeexpectedtobegreaterthanotherregionsof 7.3.4.1 The thickness of these layers shall be determined by
the pipe.
setting a major scale division of the reticle at the apparent
interfaceandreadingtowardthenextapparentinterface.Make
NOTE 2—Take care to ensure that the measurements are not made at
6 measurements 60° apart.
either a tapered or belled pipe end.
7.4 Calculations—Calculate the average reinforced wall
NOTE 3—Take care to avoid misalignment of the anvil with the
thicknessandlinerthicknessbyaveragingthevaluesobtained.
longitudinal axis of the specimen when using cylindrical anvil microme-
ters that may bridge specimen surface curvature or indentations and give
7.5 Report—The report shall include the following:
falsely high readings.
7.5.1 Observed minimum and maximum reinforced wall
thickness,
6.3 Calculation—Calculate the average total wall thickness
7.5.2 Calculated average reinforced wall thickness,
of the four or more thicknesses taken.
7.5.3 Observed minimum and maximum liner thickness,
6.4 Report—The report shall include the following:
7.5.4 Calculated average liner thickness, and
6.4.1 Observedminimumandmaximumwallthickness,and
7.5.5 Observations of exterior surface layer, nonreinforced
6.4.2 Calculated average total wall thickness.
layers, or other reinforced layer measurements within the
reinforced wall when measured.
7. Reinforced Wall Thickness and Liner Thicknesses—
Pipe and Fittings
8. Average Outside Diameter Measurements
7.1 Sampling—Whenperformedonfinishedpipeorfittings,
this procedure will usually destroy or damage the part. When NOTE 4—The need for measurements and the location of the measure-
ments should be evaluated since the outside surface of the pipe may not
this procedure is to be used for quality control or sampling, it
be smooth. Uneven surfaces or burrs will influence the accuracy of the
is intended for use on samples taken from the excess of the
outside diameter measurements.
fabrication, such as the ends of pipe or fittings, or both. If the
procedure requires destructively testing the pipe or fittings, the
8.1 Apparatus—A circumferential vernier wrap tape shall
requirements shall be agreed upon between the buyer and the be used to determine the average outside diameter. The tape
seller.
should be accurate to within 60.02 in. (60.4 mm) on the
7.2 Apparatus—An optical scale comparator witha7to circumference measured.
10X magnification and having a reticle graduated as follows:
8.2 Procedure—Individually measure and record the out-
7.2.1 For products with liner measurements less than 0.050 side diameter end-sealing surfaces or special OD control
in.(1.27mm):0.001-in.(0.025-mm)divisionsornotmorethan surfaces. Make the OD measurements near each end and at
10% of liner thickness, whichever is smaller. three intermediate locations. Take the OD measurement by
7.2.2 For products with liner measurements 0.050 in. (1.27 placing the circumferential wrap tape around the pipe, making
mm) or larger: 0.005-in. (0.13-mm) divisions or smaller. sure it is at right angles to the pipe axis. Average all five
7.3 Procedure: readings.
7.3.1 Surface Preparation—At the desired cross section of
8.2.1 Calculate the diameter as follows:
the pipe or fitting, make a sawcut at right angles to the inside
D 5 C /p (1)
OD
surface. Remove burrs and sand the cut surface smooth, using
where:
200-grit (or finer) sandpaper. Thoroughly wash the sanded
C = average of the readings.
surface with clean water to remove resin and glass dust, then
OD
blot dry.
NOTE 5—For larger diameter piping, the weight of the piping may
7.3.2 Reinforced Wall and Liner Thickness—Measure the
cause significant distortion. Take care in measurement and evaluation of
cut surface of the pipe or fitting by setting a major scale
the significance of this measurement. If significant product distortion
...
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