ASTM_D_4714_-_96_2007.pdf

Designation:D4714 96(Reapproved 2007)An American National StandardStandard Test Method forDetermination of Effect of Moist Heat(50%RelativeHumidity and 90C)on Properties of Paper and Board1This standard is issued under the fixed designation D4714;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 the procedure for humidified(50%relative humidity and 90C)heat treatment of paper orboard and the general procedure for testing the heat-treatedmaterials.The purpose is to obtain,by an accelerated test,inferences about the aging qualities of the paper.1.2 This test method is based on work performed on printingand writing papers but may be used with discretion for othertypes of papers and boards.This procedure is not intended foruse with electrical insulating papers,whose testing is describedin Test Methods D202.1.3 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.2.Referenced Documents2.1 ASTM Standards:2D202 Test Methods for Sampling and Testing UntreatedPaper Used for Electrical InsulationD585 Practice for Sampling and Accepting a Single Lot ofPaper,Paperboard,Fiberboard,and Related ProductD685 Practice for Conditioning Paper and Paper Productsfor TestingD774/D774M Test Method for Bursting Strength of Paper3D776 Test Method for Determination of Effect of Dry Heaton Properties of Paper and Board3D919 Test Method for Copper Number of Paper and Paper-board3D2176 Test Method for Folding Endurance of Paper by theM.I.T.Tester2.2TAPPI Methods:4T 212 One Percent Sodium Hydroxide Solubility of Woodand PulpT 231 Zero Span Breaking Length of PulpT 403 Bursting Strength of PaperT 414 Internal Tearing Resistance of Paper(Elmendorf-typeMethod)T 425 Brightness of Pulp,Paper,and Paperboard(Direc-tional Reflectance at 457 nm)T 456 Wet Tensile Breaking Strength of Paper and Paper-boardT 494 Tensile Breaking Properties of Paper and Paperboard(Using Constant Rate of Elongation Apparatus)T 509 HydrogenIonConcentration(pH)ofPaperExtractsCold Extraction MethodT 511 Folding Endurance of Paper(MIT Tester)3.Summary of Test Method3.1 Properties of paper or board are compared before andafter“accelerated aging”in a humidified atmosphere at anelevated temperature,namely 90C and 50%relative humid-ity.4.Significance and Use4.1 Exposure of paper or board to a hostile environment,such as some types of radiation,elevated temperature,orchemical attack over a period of hours,may provide informa-tion concerning(1)the natural changes that may occur in thematerial over a period of years and(2)the ranking of similarpapers with respect to stability.4.2 Hostile environments that have been used include ex-posure to heat,to heat and moisture,to visible and ultravioletradiation,and to sulfur dioxide or ether atmospheric gases.4.3 Properties compared before and after such exposuremay include,but are not limited to,the following:1This test method is under the jurisdiction of ASTM Committee D06 on Paperand Paper Products and is the direct responsibility of Subcommittee D06.92 onStandard Documents Relating to Paper and Paper Products.Current edition approved Aug.1,2007.Published August 2007.Originallyapproved in 1987.Last previous edition approved in 2001 as D4714 96(2001).DOI:10.1520/D471496R07.This test method is related to ISO 5630 1986,Paper and BoardAcceleratedAgingPart 3:Moist Heat Treatment,and TAPPI T544 pm-85,Effect of Moist Heaton Properties of Paper and Board.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.3Withdrawn.The last approved version of this historical standard is referencedon www.astm.org.4Available from Technical Association of the Pulp and Paper Industry(TAPPI),15 Technology Parkway South,Norcross,GA 30092,http:/www.tappi.org.1Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959,United States.NOTICE:This standard has either been superseded and replaced by a new version or withdrawn.Contact ASTM International(www.astm.org)for the latest information4.3.1 Mechanical Propertiessuch as folding endurance,bursting strength,tearing resistance,zero-span tensile,andtensile properties(tensile at break,elongation at break andtensile energy absorption),4.3.2 Optical Propertiessuch as brightness and opacity,and4.3.3 Chemical Propertiessuch as pH and alkali solubil-ity.4.4 For determining the effect of dry oven treatment onpaper,see T