ASTM F1429-99(2009)

Standard Test Method for Assembly Force of Plastic Underground Conduit Joints That Use Flexible Elastomeric Seals Located in the Bell

SIGNIFICANCE AND USE
The assembly force of a conduit joining system is one measure of the ease of which the conduit system can be assembled and installed in the field. This test method provides a means by which to quantify the assembly force of gasketed conduit joining systems. The results of the testing can be used to compare and categorize the assembly force of different designs of gasketed conduit joining systems.
This test method is not intended for use as a quality control test.
This test method can be used for comparison of gasketed conduit joining systems on the basis of assembly force. No information about joint sealing performance can be obtained from the use of this test method.
This test method covers all plastic conduit with push-on joints that use flexible elastomeric gaskets located in the bell to provide the joint seal.
This test method is also applicable to all fittings that are fabricated from conduit covered in 5.4 and that utilize the same type of push-on joints as the conduit covered in 5.4, and that are intended for use with the conduit types described in 5.4. For purposes of this test method, assembly force data obtained from the testing of the conduit that is the parent stock of a fitting shall apply to the fitting also.
SCOPE
1.1 This test method covers the determination of the relative force required to assemble plastic underground conduit joints that use flexible elastomeric seals located in the bell.
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
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.

General Information

• Status: Historical
• Publication Date: 31-Jul-2009
• ICS: 23.040.60 - Flanges, couplings and joints
• Technical Committee: F17 - Plastic Piping Systems
• Drafting Committee: F17.40 - Test Methods

Relations

• Replaces: ASTM F1429-99(2005) - Standard Test Method for Assembly Force of Plastic Underground Conduit Joints That Use Flexible Elastomeric Seals Located in the Bell
• Effective Date: 01-Aug-2009

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
Designation: F1429 − 99(Reapproved 2009) An American National Standard
Standard Test Method for
Assembly Force of Plastic Underground Conduit Joints That
Use Flexible Elastomeric Seals Located in the Bell
This standard is issued under the fixed designation F1429; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope the following three manufacturer-specified components that
influence joint assembly force: (1) the elastomeric seal, (2) the
1.1 This test method covers the determination of the relative
chamfer on the spigot, and (3) the joint lubricant. This system
force required to assemble plastic underground conduit joints
is as supplied or recommended by the conduit manufacturer.
that use flexible elastomeric seals located in the bell.
1.2 The values stated in inch-pound units are to be regarded
4. Summary of Test Method
as standard. The values given in parentheses are mathematical
4.1 A sample of eight gasketed conduit bells of the same
conversions to SI units that are provided for information only
nominaldiameterarepreparedfromtypicalproductionstockof
and are not considered standard.
the conduit manufacturer. An aluminum spigot mandrel made
1.3 This standard does not purport to address all of the
to the specifications of Annex A1 for the conduit size being
safety concerns, if any, associated with its use. It is the
tested is inserted into each of the eight gasketed conduit bell
responsibility of the user of this standard to establish appro-
specimens by means of a compression tester and the joint
priate safety and health practices and determine the applica-
system assembly force is recorded for each specimen. The
bility of regulatory limitations prior to use.
mean and standard deviation of the sample of eight recorded
assembly forces is then calculated and recorded.
2. Referenced Documents
4.2 Any variation in the type of gasket, spigot chamfer, or
2.1 ASTM Standards:
joint lubricant specified by the manufacturer constitutes a
D695 Test Method for Compressive Properties of Rigid
change in the gasketed conduit joining system and requires that
Plastics
a new sample of eight specimens be tested.
F412 Terminology Relating to Plastic Piping Systems
5. Significance and Use
3. Terminology
5.1 The assembly force of a conduit joining system is one
3.1 Definitions of Terms Specific to This Standard:
measure of the ease of which the conduit system can be
3.1.1 assembly force—the peak force or effort required to
assembled and installed in the field. This test method provides
insert the spigot into the belled end for gasketed conduit
a means by which to quantify the assembly force of gasketed
joining systems.
conduit joining systems. The results of the testing can be used
3.1.2 chart recorder—a device that records on paper (or
to compare and categorize the assembly force of different
similarpermanentmedium)thereadingsobtainedbyaphysical
designs of gasketed conduit joining systems.
testing machine, such as a compression tester. The chart
5.2 This test method is not intended for use as a quality
recorder receives input from the testing machine in the form of
control test.
electrical signals that are proportional to the test readings.
5.3 Thistestmethodcanbeusedforcomparisonofgasketed
3.1.3 gasketed conduit joining system—a push-on conduit
conduit joining systems on the basis of assembly force. No
joining system (see joint, push-on in Terminology F412) with
information about joint sealing performance can be obtained
from the use of this test method.
This test method is under the jurisdiction of ASTM Committee F17 on Plastic
5.4 This test method covers all plastic conduit with push-on
Piping Systems and is the direct responsibility of Subcommittee F17.40 on Test
Methods.
joints that use flexible elastomeric gaskets located in the bell to
Current edition approved Aug. 1, 2009. Published September 2009. Originally
provide the joint seal.
approved in 1992. Last previous edition approved in 2005 as F1429 – 99(2005).
DOI: 10.1520/F1429-99R09.
5.5 This test method is also applicable to all fittings that are
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
fabricated from conduit covered in 5.4 and that utilize the same
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
type of push-on joints as the conduit covered in 5.4, and that
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. areintendedforusewiththeconduittypesdescribedin5.4.For
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
F1429 − 99 (2009)
purposes of this test method, assembly force data obtained 7.6 Number of Test Specimens—There shall be eight speci-
from the testing of the conduit that is the parent stock of a mens to be tested for each design of gasketed conduit joining
fitting shall apply to the fitting also. system and nominal conduit size.
6. Apparatus 8. Conditioning
6.1 Testing Machine—A properly calibrated compression 8.1 Condition specimens, spigot mandrels, and joint lubri-
testing machine of the constant-rate-of-crosshead movement cant for at least 8 h in air at a temperature of 73 6 7°F (23 6
4°C) prior to testing. Begin testing immediately after condi-
type meeting the requirements of Testing Method D695 shall
be used to make the tests. The compression tester shall be tioning period.
capable of a compression rate of 20 6 0.5 in./min (500 6 12.7
8.2 Conduct the testing in a room maintained at the condi-
mm/min). The compression tester shall be equipped with a
tioning temperature.
chart recorder that is capable of recording compression force
versus time or position.
9. Procedure
6.2 Spigot Mandrels—Spigot mandrels shall be constructed
9.1 Select eight bell specimens of the same nominal size
to mount rigidly to the compression tester. The mandrels shall
which have been prepared and conditioned according to
conform to the dimensions and specifications shown in Annex
Sections 7 and 8 of this test method.
A1.
9.2 Mark the specimens with consecutive numbers, starting
6.3 Joint Lubricant—Joint lubricant shall be used prior to
with “1” and ending with “8.”
the assembly of the conduit joints. It shall be as specified or
9.3 Rigidly mount the proper spigot mandrel for the nomi-
supplied by the conduit manufacturer, or both.
nal size of conduit being tested to the compression tester.
7. Test Specimens 9.4 Markspecimennumberandtypeonchartrecorderpaper
to identify the force tracing that will be recorded.
7.1 Specimens shall be comprised of a conduit bell with an
elastomeric seal. 9.5 Position compression arms of the compression tester to
provide a gap between the spigot mandrel and the bell
7.2 Specimens shall have no less than 1 in. (25 mm) and no
specimen such that access to the spigot mandrel and bell
more than 3 in. (76 mm) of nominal conduit diameter extend-
specimen is easily achieved.
ing past the bottom of the bell shoulder (see Fig. 1).
9.6 Stir the joint lubricant to remix any separation that may
7.3 The bottom of each specimen (spigot end) shall be cut
have occurred.
perpendicular to the axis of the bell barrel within 61° (see Fig.
1). 9.7 Using a paint brush or sponge, apply the joint lubricant
to the gasket and spigot mandrel. Make sure to cover the entire
7.4 Bell dimensions and specifications shall be determined
contact surface of the gasket and halfwa
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