ASTM D6396-99(2020)
(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
5.1 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's 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.
5.2 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 resistance, 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 values 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
General Information
Relations
Standards Content (Sample)
This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: D6396 −99 (Reapproved 2020)
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 3.2.1 removal torque, n—the torque required to unseat an
installed pipe plug from a pipe tee.
1.1 This test method covers procedures used to assemble,
evaluate and test pipe thread sealants.
4. Summary of Test Method
1.2 Test procedures included in this test method are cure
4.1 Pipe tee and plug fittings, assembled with the sealant
speed versus temperature, primer cure, instant seal/sealability,
under test, are subjected to a variety of conditions and tested
heat aging, solvent resistance, hot strength, steam resistance,
for sealability and removal torque, ⁄2 in. cap, coupling and
and specimen preparation for high pressure testing.
nipple assemblies are prepared with the sealant under test for
1.3 The values stated in inch-pound units are to be regarded
high pressure testing (typically 10 000 psi).
as the standard. The values given in parentheses are for
information only.
5. Significance and Use
1.4 This standard does not purport to address all of the
5.1 Many of the tests that have been employed in the past to
safety concerns, if any, associated with its use. It is the
evaluate thread sealant products have not consistently targeted
responsibility of the user of this standard to establish appro-
the most significant product features of a thread sealant. For
priate safety, health, and environmental practices and deter-
instance, one of a thread sealant’s primary performance fea-
mine the applicability of regulatory limitations prior to use.
tures is its ability to maintain a seal under a range of
1.5 This international standard was developed in accor-
conditions. The procedures in this test method assess the
dance with internationally recognized principles on standard-
important characteristic properties of a thread sealant.
ization established in the Decision on Principles for the
5.2 Because of the variability of the test specimens and the
Development of International Standards, Guides and Recom-
techniques employed by each operator, the assembly and test
mendations issued by the World Trade Organization Technical
procedures and the testing apparatus have been designed to
Barriers to Trade (TBT) Committee.
reduce the variability of the test results.
2. Referenced Documents
2 6. Apparatus
2.1 ASTM Standards:
D907 Terminology of Adhesives 6.1 Torque Testing Device, of suitable capacity, for testing
D1599 Test Method for Resistance to Short-Time Hydraulic assemblies.
Pressure of Plastic Pipe, Tubing, and Fittings
NOTE 1—Using automated torque testers to test the assemblies gener-
ally produces more reproducible results.
3. Terminology
6.2 Torque Wrench, of suitable capacity, for providing
3.1 Definitions—Many of the terms in this test method are
installation torque.
defined in Terminology D907.
6.3 Pipe Tee Assembly Block, ⁄8 in. (10 mm), as shown in
3.2 Definitions of Terms Specific to This Standard:
Fig. 1, or equivalent.
6.4 Pipe Tee Torque Test Block, ⁄8 in. (10 mm), as shown in
Fig. 2, or equivalent.
This test method is under the jurisdiction of ASTM Committee D14 on
Adhesives and is the direct responsibility of Subcommittee D14.80 on Metal
NOTE 2—The pipe tee torque test block is designed to fit an automated
Bonding Adhesives.
torque tester, but it can also be used in a vise with a torque wrench.
Current edition approved Jan. 1, 2020. Published January 2020. Originally
approved in 1999. Last previous edition approved in 2012 as D6396 – 99 (2012).
6.5 Pipe Tee Sealability Test Clamp, as shown in Fig. 3.
DOI: 10.1520/D6396-99R20.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or 6.6 Temperature Chamber.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
6.7 Pressurized Pots, for solvent resistance and steam resis-
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. tance testing.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
D6396 − 99 (2020)
FIG. 1 ⁄8 Pipe Tee Assembly Block
7. Test Specimen 8.3 Apply sealant as follows:
8.3.1 Apply sealant uniformly to the second through the
7.1 Malleable Iron Pipe Tees, ⁄8 in. (10 mm).
sixth threads of the male fitting for each test joint.
7.2 Forged Steel Pipe Plugs, ⁄8 in. (10 mm).
8.3.2 Ensure that the average height of the sealant reaches
7.3 Stainless Steel Pipe Tees, ⁄8 in. (10 mm), 304SS.
the thread crown (major diameter), and that the sealant
3 completely wets the thread roots.
7.4 Stainless Steel Pipe Plugs, ⁄8 in. (10 mm), 304SS.
8.3.3 Note any separation or visible defects with the prod-
7.5 Brass Pipe Tees, ⁄8 in. (10 mm).
ucts. Also note any problems with wettability or excessive
7.6 Brass Pipe Plugs, ⁄8 in. (10 mm).
running due to low viscosity or a low thixotropy level.
7.7 Malleable Iron Pipe Tees, ⁄2 in. (13 mm), Class 300.
8.4 Assemble test specimens as follows:
8.4.1 Using a torque wrench and the pipe tee assembly
7.8 Forged Steel Pipe Plugs, ⁄2 in. (13 mm).
block fixture, install two sealant coated pipe plugs for each
1 1
7.9 Hex Reducing Coupling, ⁄2 in. (13 mm) FNPT by ⁄8 in.
pipe tee. Install with the application of 240 in.–lb (27.1 N·m)
(3 mm) FNPT, 316 stainless steel.
of torque.
7.10 Cap, ⁄2 in. (13 mm) pipe cap.
8.4.2 Remove excess sealant to avoid excess specimen
7.11 Hex Long Nipple, 316SS. weight loss that may be caused by charred sealant flaking off
during initial heat exposure and in steam resistance tests.
8. Assembly
9. Procedure
8.1 Assemble not less than three assemblies for each test.
9.1 Cure Speed Versus Temperature:
8.2 Degrease all pipe tees and plugs. Allow specimens to
cool to room temperature prior to sealant application. 9.1.1 Use ⁄8 in. (10 mm) pipe tees and plugs.
D6396 − 99 (2020)
FIG. 2 ⁄8 Pipe Tee Torque Test Block
9.1.2 Condition pipe tees and plugs in a temperature cham-
ber at the cure temperature specified by the adhesive manufac-
turer for a minimum of 2 h.
NOTE 3—A temperature chamber is not needed for conditioning
specimens for curing at room temperature.
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-
FIG. 3 Pipe Tee Sealability Test Clamp
turer to the plugs and allow them to dry vertically until all the
solvent has evaporated.
D6396 − 99 (2020)
9.2.3 Apply the sealant in accordance with 8.3. Within 30 s 9.4.9 Determine removal torques for each assembly using
of sealant application assemble the specimens in accordance the pipe tee torque test block fixture. Record the results.
with 8.4.
9.5 Hot Strength:
9.2.4 Cure the assemblies for the times specified by the
9.5.1 Use ⁄8 in. (10 mm) pipe tees and plugs.
adhesive manufacturer.
9.5.2 Apply the sealant in accordance with 8.3, and as-
9.2.5 At the end of each specified cure time, test each
semble the specimens in accordance with 8.4.
assembly for sealability in accordance with 9.9.
9.5.3 Cure the assemblies for 72 h at room temperature.
9.2.6 Determine removal torques for each assembly usin
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