ASTM_D_5403_-_93_2013.pdf

Designation:D540393(Reapproved 2013)Standard Test Methods forVolatile Content of Radiation Curable Materials1This standard is issued under the fixed designation D5403;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 These test methods cover procedures for the determina-tion of weight percent volatile content of coatings,inks,andadhesives designed to be cured by exposure to ultraviolet lightor to a beam of accelerated electrons.1.2 Test Method A is applicable to radiation curable mate-rials that are essentially 100%reactive but may contain traces(no more than 3%)of volatile materials as impurities orintroduced by the inclusion of various additives.1.3 Test Method B is applicable to all radiation curablematerials but must be used for materials that contain volatilesolvents intentionally introduced to control application viscos-ity and which are intended to be removed from the materialprior to cure.1.4 These test methods may not be applicable to radiationcurable materials wherein the volatile material is water,andother procedures may be substituted by mutual consent of theproducer and user.1.5 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.1.6 This standard does not purport to address all of thesafety problems,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.A specific hazardstatement is given in 15.7.2.Referenced Documents2.1 ASTM Standards:2D2369 Test Method for Volatile Content of CoatingsE145 Specification for Gravity-Convection and Forced-Ventilation OvensE177 Practice for Use of the Terms Precision and Bias inASTM Test MethodsE691 Practice for Conducting an Interlaboratory Study toDetermine the Precision of a Test Method3.Terminology3.1 Definitions:3.1.1 cure,nthe condition of a coating after conversion tothe final state of cure as measured by tests generally related toend use performance and mutually agreeable to supplier andpurchaser.3.1.2 ultraviolet(UV)curing,nconversion of a coatingfrom its application state to its final use state by means of amechanism initiated by ultraviolet radiation generated byequipment designed for that purpose.3.1.3 electron beam(EB)curing,nconversion of a coatingfrom its application state to its final use state by means of amechanism initiated by electron beam radiation generated byequipment designed for that purpose.3.1.4 processing volatiles,nloss in specimen weight undertest conditions that are designed to simulate actual industrialcure processing conditions.3.1.5 potential volatiles,nloss in specimen weight uponheating at 110C for 60 min after radiation curing.3.1.5.1 DiscussionThis value is an estimation of volatileloss that may occur during aging or under extreme storageconditions.Potential volatiles may also be referred to asresidual volatiles.3.1.6 total volatiles,nsum of the processing volatiles andthe potential volatiles.4.Summary of Test Methods4.1 A designated quantity of material is weighed before andafter a cure step that simulates normal industrial processing.The test specimen is weighed again after heating at 110 6 5Cfor 60 min.The percent volatile is calculated from the losses inweight.5.Significance and Use5.1 These test methods are the procedures of choice fordetermining volatile content of materials designed to be cured1These test methods are under the jurisdiction of ASTM Committee D01 onPaint and Related Coatings,Materials,and Applications and are the directresponsibility of Subcommittee D01.55 on Factory Applied Coatings on PreformedProducts.Current edition approved June 1,2013.Published July 2013.Originally approvedin 1993.Last previous edition approved in 2007 as D5403 93(2007).DOI:10.1520/D5403-93R13.2For 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 by exposure to ultraviolet light or electron beam irradiation.These types of materials contain liquid reactants that react tobecome part of the film during cure,but,which under the testconditions of Test Method D2369,will be erroneously mea-sured as volatiles.The conditions of these test methods aresimilar to Test Method D2369 with the inclusion of a step tocure the material prior to weight loss determination.Volatilecontent is determined as two separate componentsprocessingvolatiles and potential volatiles.Processing volatiles is ameas