ASTM_D_6053_-_14.pdf

Designation:D605314An American National StandardStandard Test Method forDetermination of Volatile Organic Compound(VOC)Contentof Electrical Insulating Varnishes1This standard is issued under the fixed designation D6053;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.Scope*1.1 This test method covers the determination of the amountof volatile organic compounds emitted during cure of electricalinsulating varnishes.1.2 The values stated in SI units are to be regarded asstandard.The values given in parentheses are mathematicalconversions to inch-pound units that are provided for informa-tion only and are not considered standard.1.3 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.See Section 7 forspecific precautions.2.Referenced Documents2.1 ASTM Standards:2D115 Test Methods for Testing Solvent Containing Var-nishes Used for Electrical InsulationD1711 Terminology Relating to Electrical InsulationD3960 Practice for Determining Volatile Organic Compound(VOC)Content of Paints and Related CoatingsD4733 Test Methods for Solventless Electrical InsulatingVarnishesD5423 Specification for Forced-Convection Laboratory Ov-ens for Evaluation of Electrical InsulationE691 Practice for Conducting an Interlaboratory Study toDetermine the Precision of a Test Method3.Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 varnish,electrical insulating,n a liquid resin systemthat is applied to and cured on electrical components providingelectrical,mechanical,and environmental protection.3.1.1.1 DiscussionThere are two types of electrical insu-lating varnish:solvent-containing and solventless.The solvent-containing varnish is a solution,dispersion,or emulsion of apolymer or mixture of polymers in a volatile,nonreactableliquid.The solventless type is a liquid resin system free ofvolatile,nonreactable solvents.3.1.2For definitions of other terms pertaining to this testmethod,refer to Terminology D1711.4.Significance and Use4.1 This test method determines the volatile organic contentof an electrical insulating varnish.It utilizes a procedure wheredishes containing a known amount of varnish are baked and theamount of volatile organic compound is measured.Calcula-tions are performed to express this in g/L or lb/gal.This testmethod is applicable to all types of varnishes.However,waterborne varnishes while baked under the same conditionsneed to have water content determined and calculations per-formed in accordance with Practice D3960.4.1.1 During the cure of electrical insulating varnishes someorganic material is volatilized.A determination of the amountthat is volatilized is useful for estimating the amount of curedvarnish on electrical units and volatile organic emissions froma manufacturing facility.5.Interferences5.1 The amount of volatile organic content determined bythis test method is known to be affected by the rate of airexchange in the baking oven.6.Apparatus6.1 Weighing Dishes,aluminum,approximately 60 mm(238in.)in diameter and 15 mm(58in.)high on the sides.6.2 Forced-Convection Oven,see Specification D5423-Type II.6.3 Desiccator.1This standard is under the jurisdiction of ASTM Committee D09 on Electricaland Electronic Insulating Materials and is the direct responsibility of SubcommitteeD09.01 on Electrical Insulating Varnishes,Powders and Encapsulating Compounds.Current edition approved May 15,2014.Published May 2014.Originallyapproved in 1996.Last previous edition approved in 2008 as D6053-08.DOI:10.1520/D6053-14.2For 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.*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 7.Hazards7.1 WarningDo not use varnish at temperatures abovethe flash point when inadequate ventilation,and the possibilityof flames or sparks exist.Store varnish in sealed containers.8.Procedure8.1 Weigh three aluminum dishes to the nearest 0.01 g.8.2 Add approximately 2 to 10 g of the varnish to be testedto each dish.Each dish needs to contain approximately thesame amount of varnish.8.3 Weigh each dish and varnish to the nearest 0.01 g.8.4 Roll the resin around in the dishes to ensure an evencoating.8.5 Place the dishes in a forced-convection oven at 150 6 2C.Other temperatures are permitted to be used when agreed toby interested pa