1、Designation:D337618Standard Test Methods ofSampling and Testing Pulps to be Used in the Manufactureof Electrical Insulation1This standard is issued under the fixed designation D3376;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the
2、 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.Scope*1.1 These test methods cover the sampling and testing ofcellulosic pulps for use in the manufacture of electricalinsu
3、lating papers and boards or in the direct application of pulpfibers as insulation to electrical conductors.NOTE1Consider the significance of any one pulp property testmethod,as set forth herein,with discretion depending on the product madefrom the pulp.1.2 Sections on Reagents,Sampling,and Report ar
4、e integralparts of each of the individual test methods that follow.1.3 Each test method is described as being a measure ofeither a bulk property of the pulp or a property of a handsheetformed from the pulp.1.3.1 Bulk characteristics determinable by these proceduresappear in the following sections:Pr
5、ocedureSectionsASTMMethodReferenceTAPPIMethodReferenceAqueous Extract Conductivity8&9D202.Aqueous Extract pH10&11D202.Aqueous Extractable Acidity-Alkalinity12&13D202.Analysis of Ash for Cations byAtomic Absorption Spectropho-tometry70 78D1193&D2576.Ash Content79 82D202T 413Dirt in Pulp40&41.T 213Fib
6、er Analysis23&24D202&D1030.Fiber Length of Pulp42&43.T 232,T 233Freeness(Canadian StandardFreeness)53&54.T 227Kappa Number/PermanganateNumber(Substances Oxidizableby Permanganate)27&28.T 236,UM 251Laboratory Processing of Pulp(Beater Method)51&52.T 200Moisture in Pulp31 33.T 210Neutral Aqueous Extra
7、ctable Hard-ness in Pulp16 22D202,D1126,&D2576.ProcedureSectionsASTMMethodReferenceTAPPIMethodReferencePentosan Content of Pulp29&30.T 223Resistance of Pulp to Disintegration(Standard RPG)44 50.T 239,UM 252Shive Count34 39.Solvent-Soluble Matter in Pulp25&26D202.Tensile Properties65 69D202.Water-Ext
8、ractable Chlorides14&15D202.1.3.2 Handsheet characteristics determinable by these pro-cedures appear in the following sections:ProcedureSectionsASTMMethodReferenceTAPPIMethodReferenceAir Resistance(Porosity)57&58D202T 205Apparent Density63&64D202T 205Bursting Strength59&60D202&D774/D774MT 205Folding
9、 Endurance(M.I.T.)51&52D202&D2176T 205Forming Handsheets for PhysicalTests of Pulp55&56.T 205Tensile Strength65&66D202&D828T 205NOTE2Methods for Ash,Silica,selected cations from Ash,HeatStability,and Cellulose,Viscosity,Total Chlorine,Tear,andDissipation Factor and Relative Permittivity,will be cons
10、idered foraddition as methods are developed.1.4 The values stated in SI units are to be regarded as thestandard.The values given in parentheses are for informationonly.1.5 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of th
11、e user of this standard to establish appro-priate safety,health,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.6 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established
12、in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.1These test methods are under the jurisdiction of ASTM Committee D09 onElectrical and Electronic Insulating Material
13、s and are the direct responsibility ofSubcommittee D09.01 on Electrical Insulating Products.Current edition approved Nov.1,2018.Published November 2018.Originallyapproved in 1975.Last previous edition approved in 2014 as D3376 14.DOI:10.1520/D3376-18.*A Summary of Changes section appears at the end
14、of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopme
15、nt of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1 2.Referenced Documents2.1 ASTM Standards:2D202 Test Methods for Sampling and Testing UntreatedPaper Used for Electrical InsulationD774/D774M Test Method for Bur
16、sting Strength of Paper(Withdrawn 2010)3D828 Test Method for Tensile Properties of Paper andPaperboard Using Constant-Rate-of-ElongationApparatusD1030 Test Method for Fiber Analysis of Paper and Paper-boardD1126 Test Method for Hardness in WaterD1193 Specification for Reagent WaterD1711 Terminology Relating to Electrical InsulationD2176 Test Method for Folding Endurance of Paper andPlastics Film by the M.I.T.TesterD2576 Method of Test for Metals in Water and Waste Waterby Atomic Absorption Spect
