ASTM_D_922_-_11.pdf

Designation:D92211Standard Specification forNonrigid Vinyl Chloride Polymer Tubing1This standard is issued under the fixed designation D922;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.This standard has been approved for use by agencies of the U.S.Department of Defense.1.Scope*1.1 This specification covers nonrigid tubing of vinyl chlo-ride polymer or its copolymers with other materials for use inelectrical insulation in three grades,as follows:1.1.1 Grade AGeneral-purpose.1.1.2 Grade BLow-temperature.1.1.3 Grade CHigh-temperature.1.2 This standard and IEC-60684-3-100 to-105 address thesame subject matter but differ in technical content.1.3 The values stated in inch-pound units are to be regardedas standard.The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.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:2D876 Test Methods for Nonrigid Vinyl Chloride PolymerTubing Used for Electrical InsulationD1711 Terminology Relating to Electrical InsulationD3636 Practice for Sampling and Judging Quality of SolidElectrical Insulating MaterialsE176 Terminology of Fire Standards2.2 IEC Standards:IEC-60684-3-100 to-105 Flexible insulating sleeving,Part3,Sheets 100 to 105:Extruded PVC sleeving33.Terminology3.1 Definitions:3.1.1 For definitions pertaining to electrical insulation,referto Terminology D1711.3.1.2 For definitions pertaining to fire standards,refer toTerminology E176.4.Ordering Information4.1 Orders for material covered by this specification shallinclude the following:4.1.1 Grade of tubing,4.1.2 Size and color,4.1.3 Total length in feet or metres,4.1.4 Length of cut pieces in inches or centimetres,if any,and4.1.5 Amount of tubing on each spool or in each coil,if notstandard packaging with the supplier.5.Color5.1 Clear transparent,black,white,yellow,green,blue,andred shall be considered standard colors.Other colors shall beconsidered special.The color desired shall be specified in thepurchase order.6.Dimensional Requirements6.1 Inside DiameterThe inside diameter of the tubingshall conform to the requirements prescribed in Table 1 orTable 2.6.2 Wall ThicknessThe wall thickness of the tubing shallconform to the requirements prescribed in Table 1 or Table 2.6.3 Commercial LengthsThe tubing shall be supplied incontinuous lengths.7.Workmanship,Finish,and Appearance7.1 The surface shall be smooth,free of blisters,cracks,orany other defects that have the potential to detrimentally affectits suitability for the service intended.It shall not be subject topeeling,scaling,or flaking.8.Physical and Electrical Requirements8.1 Tubing shall conform to the following requirements forphysical and electrical properties,using the tests contained inTest Methods D876:1This specification is under the jurisdiction of ASTM Committee D09 onElectrical and Electronic Insulating Materials and is the direct responsibility ofSubcommittee D09.07 on Flexible and Rigid Insulating Materials.Current edition approved Aug.1,2011.Published August 2011.Originallyapproved in 1947.Last previous edition approved in 2006 as D922 00a(2006).DOI:10.1520/D0922-11.2For 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.3Available from American National Standards Institute(ANSI),25 W.43rd St.,4th Floor,New York,NY 10036.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 8.1.1 FlammabilityThe average duration of burning shallnot exceed 15 s and the paper indicator shall show no evidenceof being affected.8.1.2 Tensile StrengthThe average tensile strength shall benot less than 2000 psi 15 MPa for Grades A and C,and notless than 1800 psi 13 MPa for Grade B.The average ultimateelongation shall be not less than 200%for GradesAand C andnot less than 250%for Grade B.8.1.3 Effect of Elevated Temperatures When Method A isused,the average loss of ultimate elongation after exposure toelevated temperatures shall be not greater than 35%for GradesA,B,and C.When Method B is used,the loss of weight afterexposure to elevated temperatures shall be not greater than15%of the original weight for GradesAand B,and not greaterthan 10%for Grade C.8.1.4 After immersion in oil,the average ult