ASTM D6396-99(2005)
(Test Method)Standard Test Method for Testing of Pipe Thread Sealants on Pipe Tees
Standard Test Method for Testing of Pipe Thread Sealants on Pipe Tees
SIGNIFICANCE AND USE
Many of the tests that have been employed in the past to evaluate thread sealant products have not consistently targeted the most significant product features of a thread sealant. For instance, one of a thread sealant’primary performance features is its ability to maintain a seal under a range of conditions. The procedures in this test method assess the important characteristic properties of a thread sealant.
Because of the variability of the test specimens and the techniques employed by each operator, the assembly and test procedures and the testing apparatus have been designed to reduce the variability of the test results.
SCOPE
1.1 This test method covers procedures used to assemble, evaluate and test pipe thread sealants.
1.2 Test procedures included in this test method are cure speed versus temperature, primer cure, instant seal/sealability, heat aging, solvent rsistance, hot strength, steam resistance, and specimen preparation for high pressure testing.
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.
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 the user of this standard to establish appropriate safety and health practices and to determine the applicability of regulatory limitations prior to use.
General Information
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Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation:D6396 −99(Reapproved2005)
Standard Test Method for
Testing of Pipe Thread Sealants on Pipe Tees
This standard is issued under the fixed designation D6396; 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 nipple assemblies are prepared with the sealant under test for
high pressure testing (typically 10 000 psi).
1.1 This test method covers procedures used to assemble,
evaluate and test pipe thread sealants.
5. Significance and Use
1.2 Test procedures included in this test method are cure
5.1 Many of the tests that have been employed in the past to
speed versus temperature, primer cure, instant seal/sealability,
evaluate thread sealant products have not consistently targeted
heat aging, solvent resistance, hot strength, steam resistance,
the most significant product features of a thread sealant. For
and specimen preparation for high pressure testing.
instance, one of a thread sealant’s primary performance fea-
1.3 The values stated in inch-pound units are to be regarded tures is its ability to maintain a seal under a range of
as the standard. The values given in parentheses are for conditions. The procedures in this test method assess the
information only. important characteristic properties of a thread sealant.
1.4 This standard does not purport to address all of the
5.2 Because of the variability of the test specimens and the
safety concerns, if any, associated with its use. It is the
techniques employed by each operator, the assembly and test
responsibility of the user of this standard to establish appro-
procedures and the testing apparatus have been designed to
priate safety and health practices and determine the applica-
reduce the variability of the test results.
bility of regulatory limitations prior to use.
6. Apparatus
2. Referenced Documents
6.1 Torque Testing Device, of suitable capacity, for testing
2.1 ASTM Standards:
assemblies.
D907 Terminology of Adhesives
NOTE 1—Using automated torque testers to test the assemblies gener-
D1599 Test Method for Resistance to Short-Time Hydraulic
ally produces more reproducible results.
Pressure of Plastic Pipe, Tubing, and Fittings
6.2 Torque Wrench, of suitable capacity, for providing
installation torque.
3. Terminology
6.3 Pipe Tee Assembly Block, ⁄8 in. (10 mm), as shown in
3.1 Definitions—Many of the terms in this test method are
Fig. 1, or equivalent.
defined in Terminology D907.
6.4 Pipe Tee Torque Test Block, ⁄8 in. (10 mm), as shown in
3.2 Definitions of Terms Specific to This Standard:
Fig. 2, or equivalent.
3.2.1 removal torque, n—the torque required to unseat an
installed pipe plug from a pipe tee.
NOTE 2—The pipe tee torque test block is designed to fit an automated
torque tester, but it can also be used in a vise with a torque wrench.
4. Summary of Test Method
6.5 Pipe Tee Sealability Test Clamp, as shown in Fig. 3.
4.1 Pipe tee and plug fittings, assembled with the sealant
6.6 Temperature Chamber.
under test, are subjected to a variety of conditions and tested
for sealability and removal torque, ⁄2 in. cap, coupling and
6.7 Pressurized Pots, for solvent resistance and steam resis-
tance testing.
This test method is under the jurisdiction of ASTM Committee D14 on
7. Test Specimen
Adhesives and is the direct responsibility of Subcommittee D14.80 on Metal
Bonding Adhesives.
7.1 Malleable Iron Pipe Tees, ⁄8 in. (10 mm).
Current edition approved April 1, 2005. Published April 2005. Originally
7.2 Forged Steel Pipe Plugs, ⁄8 in. (10 mm).
approved in 1999. Last previous edition approved in 1999 as D6396 – 99. DOI:
10.1520/D6396-99R05.
7.3 Stainless Steel Pipe Tees, ⁄8 in. (10 mm), 304SS.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM 3
7.4 Stainless Steel Pipe Plugs, ⁄8 in. (10 mm), 304SS.
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. 7.5 Brass Pipe Tees, ⁄8 in. (10 mm).
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
D6396−99(2005)
FIG. 1 ⁄8 Pipe Tee Assembly Block
7.6 Brass Pipe Plugs, ⁄8 in. (10 mm). 8.3.3 Note any separation or visible defects with the prod-
ucts. Also note any problems with wettability or excessive
7.7 Malleable Iron Pipe Tees, ⁄2 in. (13 mm), Class 300.
running due to low viscosity or a low thixotropy level.
7.8 Forged Steel Pipe Plugs, ⁄2 in. (13 mm)
8.4 Assemble test specimens as follows:
1 1
7.9 Hex Reducing Coupling, ⁄2 in. (13 mm) FNPT by ⁄8 in.
8.4.1 Using a torque wrench and the pipe tee assembly
(3 mm) FNPT, 316 stainless steel.
block fixture, install two sealant coated pipe plugs for each
7.10 Cap, ⁄2 in. (13 mm) pipe cap. pipe tee. Install with the application of 240 in.–lbs (27.1 N·m)
of torque.
7.11 Hex Long Nipple, 316SS.
8.4.2 Remove excess sealant to avoid excess specimen
weight loss that may be caused by charred sealant flaking off
8. Assembly
during initial heat exposure and in steam resistance tests.
8.1 Assemble not less than three assemblies for each test.
9. Procedure
8.2 Degrease all pipe tees and plugs. Allow specimens to
cool to room temperature prior to sealant application.
9.1 Cure Speed Versus Temperature:
9.1.1 Use ⁄8 in. (10 mm) pipe tees and plugs.
8.3 Apply sealant as follows:
9.1.2 Condition pipe tees and plugs in a temperature cham-
8.3.1 Apply sealant uniformly to the second through the
ber at the cure temperature specified by the adhesive manufac-
sixth threads of the male fitting for each test joint.
turer for a minimum of 2 h.
8.3.2 Ensure that the average height of the sealant reaches
the thread crown (major diameter), and that the sealant
NOTE 3—A temperature chamber is not needed for conditioning
completely wets the thread roots. specimens for curing at room temperature.
D6396−99(2005)
FIG. 2 ⁄8 Pipe Tee Torque Test Block
9.1.3 Remove the specimens from the temperature chamber,
and immediately apply the sealant, which has been held at
room temperature, in accordance with 8.3, and assemble the
specimens in accordance with 8.4.
9.1.4 Cure the assemblies for the time and at the tempera-
ture specified by the adhesive manufacturer.
9.1.5 After the specified cure time period, determine re-
moval torques for each assembly using the pipe tee torque test
block fixture, within 30 s of removal from the temperature
chamber. Record the results.
9.2 Primer Cure:
9.2.1 Use ⁄8 in. (10 mm) pipe tees and plugs.
9.2.2 Apply the primer specified by the adhesive manufac-
turer to the plugs and allow them to dry vertically until all the
solvent has evaporated.
9.2.3 Apply the sealant in accordance with 8.3. Within 30 s
of sealant application assemble the specimens in accordance
with 8.4.
FIG. 3Pipe Tee Sealability Test Clamp
9.2.4 Cure the assemblies for the times specified by the
adhesive manufacturer.
D6396−99(2005)
9.2.5 At the end of each specified cure time, test each 9.5.2 Apply the sealant in accordance with 8.3, and as-
assembly for sealability in accordance with 9.9. semble the specimens in accordance with 8.4.
9.2.6 Determine removal torques for each assembly using 9.5.3 Cure the assemblies for 72 h at room temperature.
the pipe tee torque test block fixture. Record the results. 9.5.4 Place the assemblies in a temperature chamber at the
temperature specified by the adhesive manufacturer for 2 h.
9.3 Heat Aging:
9.5.5 After the specified time period, determine removal
9.3.1 Use ⁄8 in. (10 mm) pipe tees and plugs.
torques for each assembly using the pipe tee torque test block
9.3.2 Apply the sealant in accordance with 8
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