ASTM_D_6396_-_99_2012.pdf

Designation:D639699(Reapproved 2012)Standard Test Method forTesting of Pipe Thread Sealants on Pipe Tees1This standard is issued under the fixed designation D6396;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This test method covers procedures used to assemble,evaluate and test pipe thread sealants.1.2 Test procedures included in this test method are curespeed 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 regardedas the standard.The values given in parentheses are forinformation only.1.4 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2D907 Terminology of AdhesivesD1599 Test Method for Resistance to Short-Time HydraulicPressure of Plastic Pipe,Tubing,and Fittings3.Terminology3.1 DefinitionsMany of the terms in this test method aredefined in Terminology D907.3.2 Definitions of Terms Specific to This Standard:3.2.1 removal torque,nthe torque required to unseat aninstalled pipe plug from a pipe tee.4.Summary of Test Method4.1 Pipe tee and plug fittings,assembled with the sealantunder test,are subjected to a variety of conditions and testedfor sealability and removal torque,12in.cap,coupling andnipple assemblies are prepared with the sealant under test forhigh pressure testing(typically 10 000 psi).5.Significance and Use5.1 Many of the tests that have been employed in the past toevaluate thread sealant products have not consistently targetedthe most significant product features of a thread sealant.Forinstance,one of a thread sealants primary performance fea-tures is its ability to maintain a seal under a range ofconditions.The procedures in this test method assess theimportant characteristic properties of a thread sealant.5.2 Because of the variability of the test specimens and thetechniques employed by each operator,the assembly and testprocedures and the testing apparatus have been designed toreduce the variability of the test results.6.Apparatus6.1 Torque Testing Device,of suitable capacity,for testingassemblies.NOTE1Using automated torque testers to test the assemblies gener-ally produces more reproducible results.6.2 Torque Wrench,of suitable capacity,for providinginstallation torque.6.3 Pipe Tee Assembly Block,38in.(10 mm),as shown inFig.1,or equivalent.6.4 Pipe Tee Torque Test Block,38in.(10 mm),as shown inFig.2,or equivalent.NOTE2The pipe tee torque test block is designed to fit an automatedtorque tester,but it can also be used in a vise with a torque wrench.6.5 Pipe Tee Sealability Test Clamp,as shown in Fig.3.6.6 Temperature Chamber.6.7 Pressurized Pots,for solvent resistance and steam resis-tance testing.7.Test Specimen7.1 Malleable Iron Pipe Tees,38in.(10 mm).7.2 Forged Steel Pipe Plugs,38in.(10 mm).7.3 Stainless Steel Pipe Tees,38in.(10 mm),304SS.7.4 Stainless Steel Pipe Plugs,38in.(10 mm),304SS.7.5 Brass Pipe Tees,38in.(10 mm).1This test method is under the jurisdiction of ASTM Committee D14 onAdhesives and is the direct responsibility of Subcommittee D14.80 on MetalBonding Adhesives.Current edition approved Oct.1,2012.Published October 2012.Originallyapproved in 1999.Last previous edition approved in 2005 as D6396 99(2005).DOI:10.1520/D6396-99R12.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 7.6 Brass Pipe Plugs,38in.(10 mm).7.7 Malleable Iron Pipe Tees,12in.(13 mm),Class 300.7.8 Forged Steel Pipe Plugs,12in.(13 mm).7.9 Hex Reducing Coupling,12in.(13 mm)FNPT by18in.(3 mm)FNPT,316 stainless steel.7.10 Cap,12in.(13 mm)pipe cap.7.11 Hex Long Nipple,316SS.8.Assembly8.1 Assemble not less than three assemblies for each test.8.2 Degrease all pipe tees and plugs.Allow specimens tocool to room temperature prior to sealant application.8.3 Apply sealant as follows:8.3.1 Apply sealant uniformly to the second through thesixth threads of the male fitting for each test joint.8.3.2 Ensure that the average height of the sealant reachesthe thread crown(major diameter),and that the sealantcompletely wets the thread roots.8.3.3 Note any separation or visible defects with the prod-ucts.Also note any problems with wettability or excessiv