ASTM D1694-95(2000)

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An American National Standard
Designation: D 1694 – 95 (Reapproved 2000)
Standard Specification for
Threads 60° (Stub) for “Fiberglass’’
(Glass-Fiber-Reinforced Thermosetting-Resin) Pipe
This standard is issued under the fixed designation D 1694; 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* ments, or dyes; thermoplastic or thermosetting liners or coat-
ings may be included.
1.1 This specification covers the geometry and dimensions
of a thread system for fiberglass pipe.
4. Thread Geometry and Dimensions
1.2 The values stated in inch-pound units are to be regarded
4.1 Geometry—The geometry of the thread form shall be in
as the standard. The values given in parentheses are for
accordance with Fig. 1 and shall be defined as modified by the
information purposes only.
American National Standard 60° stub thread. The male thread
NOTE 1—There is no similar or equivalent ISO standard.
may be preceded by a cylindrical pilot of length equal to two
thread pitches and the outside diameter equal to or less than the
2. Referenced Documents
theoretical diameter of the thread if it were extended to the end
2.1 ASTM Standards:
of the pilot.
D 883 Terminology Relating to Plastics
4.2 Dimensions—All sizes of pipe from 1 ⁄2 to 20 in. in
D 1600 Terminology for Abbreviated Terms Relating to
diameterinclusiveshallhave8threadsperinch,tapered1in32
Plastics
on the diameter, and shall conform to the dimensions specified
E 177 Practice for Use of the Terms Precision and Bias in
in Table 1. The geometry of the gage to measure the 60° stub
ASTM Test Methods
shall be in accordance with Fig. 2. The dimensions and
F 412 Terminology Relating to Plastic Piping Systems
tolerances for all size gages shall conform to the dimensions
listed in Table 2 and Table 3, respectively.
3. Terminology
3.1 General—Definitions are in accordance with Termi-
5. Precision of Measurement
nologies D 883 and F 412 and abbreviations are in accordance
5.1 The measurement experience of an individual manufac-
with Terminology D 1600, unless otherwise indicated.
turer of threads in accordance with this specification has shown
3.2 Definitions of Terms Specific to This Standard:
the following indexes of precision:
3.2.1 fiberglass pipe, n—a tubular product containing glass
5.1.1 Micrometer Caliper—Themulti-micrometer-operator-
fiber reinforcements embedded in or surrounded by cured
specimen-day precision is 60.001 in. (0.025 mm) (2S) as
thermosetting resin; the composite structure may contain
defined in Practice E 177.
aggregate, granular, or platelet fillers, thixotropic agents, pig-
5.1.2 Optical Comparator with Micrometer Head
Readout—The single-optical comparator and multi-operator-
specimen-day precision is 60.001 in. (0.025 mm) (2S) as
This specification is under the jurisdiction of ASTM Committee D20 on
defined in Practice E 177.
Plastics and is the direct responsibility of Subcommittee D20.23 on Reinforced
Plastic Piping Systems.
Current edition approved March 10, 2000. Published June 2000. Originally 6. Keywords
published as D 1694 – 59. Last previous edition D 1694 – 95.
2 6.1 fiberglass pipe; pipe; thread dimensions; threads
Annual Book of ASTM Standards, Vols 08.01 and 08.04.
Annual Book of ASTM Standards, Vols 04.01 and 14.02.
Annual Book of ASTM Standards, Vol 08.04.
*ASummary 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 1694 – 95 (2000)
FIG. 1 Thread Geometry (see Table 1)
TABLE 1 Theoretical Dimensions—Pipe Thread, in. (mm)
(see Fig. 1)
NOTE 1—Tolerance on lead per inch (25.4 mm) 60.003 in. (60.076
mm), cumulative 60.006 in. (60.152 mm).
NOTE 2—All sizes 0.125-in. (3.175-mm) pitch.
NOTE 3— Thread will make up with ring gage shown in Fig. 2.
NOTE 4—All dimensions are given up to five decimal places only to
avoid errors in computations, not to indicate required precision.
A
Nominal
AL B
Pipe
in.
...