1、Designation:D 5634 01Standard Guide forSelection of Permanent and Durable Offset and BookPapers1This standard is issued under the fixed designation D 5634;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A nu
2、mber in parentheses indicates the year of last reapproval.Asuperscript epsilon(e)indicates an editorial change since the last revision or reapproval.1.Scope1.1 This guide covers offset and book papers,both coatedand uncoated,used in the preparation of permanent records.Permanent records usually are
3、expected to last several hundredyears in a records repository,with little change in propertiesthat affect readibility or handling,although some records areexpected to have shorter lifetimes.1.2 Acidic materials incorporated in paper during manufac-ture(for example,rosin-alum sizing)contribute to det
4、eriora-tion.It has been shown(1,2,3,4,5)2that the life expectancyof uncoated papers is an approximate function of the pH of anaqueous extract of the paper.1.3 The following would be expected to contribute signifi-cantly to the life expectancy of books and documents:the useof papers with controlled a
5、cidity or of papers manufacturedunder neutral or alkaline conditions,especially papers with acalcium carbonate filler that absorbs acidic gases from theatmosphere or can neutralize acidic materials formed in theaging of paper.1.4 Three pH levels reflecting three levels of life expectancyare outlined
6、 in this guide.As one cannot rely on pH alone as anindicator of stability,minimum retentions of properties afteraccelerated aging at 90C and 50%relative humidity aresuggested for the three levels of life expectancy.1.5 In selecting papers for permanent records,papers withacceptable durability are ev
7、aluated for life expectancy throughaccelerated aging.1.6 This guide should be used in the purchase of paper forpermanent records.1.7 This guide is based on the use of fiber sources used inthe production of paper that contains no more than 1%ligninfor papers used in archives,libraries,and other perma
8、nentrecords.However,under proper conditions(see X1.8)papercontaining more than 1%lignin may be employed for manyother end uses in paper for records that are required to have asubstantial life expectancy.1.8 This standard does not purport to address all of thesafety concerns,if any,associated with it
9、s 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:D 585 Practice for Sampling and Accepting a Single Lot ofPaper,Paperboard,
10、Fiberboard,or Related Product3D 589 Test Method for Opacity of Paper3D 644 Test Method for Moisture Content of Paper andPaperboard by Oven Drying3D 645/D 645M Test Method for Thickness of Paper andPaperboard3D 646 Test Method for Grammage of Paper and Paperboard(Weight per Unit Area)3D 689 Test Meth
11、od for Internal Tearing Resistance of Pa-per3D 774/D 774M Test Method for Bursting Strength of Paper3D 828 Test Method for Tensile Breaking Strength of Paperand Paperboard3D 1030 Test Method for Fiber Analysis of Paper and Paper-board3D 1968 Terminology Relating to Paper and Paper Products3D 2176 Te
12、st Method for Folding Endurance of Paper by theM.I.T.Tester3D 3424 Test Method for Evaluating the Lightfastness andWeatherability of Printed Matter(Procedures 3 and 7)4D 4714 Test Method for Determination of Effect of MoistHeat on Properties of Paper and Paperboard3D 4988 Test Method for Determinati
13、on of Alkalinity ofPaper as Calcium Carbonate(Alkaline Reserve of Paper)3D 5625 Test Method for Measuring Length,Width andSquareness of Sheeted Paper and Paper Products32.2TAPPI Standards:T 236 Kappa number of pulp5T 400 Sampling and accepting a single lot of paper,paper-board,fiberboard,or related
14、product51This guide is under the jurisdiction of ASTM Committee D06 on Paper andPaper Products and is the direct responsibility of Subcommittee D06.20 onPermanent Records Papers.Current edition approved Dec.10,2001.Published February 2002.Originallypublished as D 5634 94.Last previous edition D 5634
15、 96.2The boldface numbers in parentheses refer to the list of references at the end ofthis standard.3Annual Book of ASTM Standards,Vol 15.09.4Annual Book of ASTM Standards,Vol 06.02.5Available from Technical Association of the Pulp and Paper Industry,Technol-ogy Park,Atlanta,PO Box 105113,Atlanta,GA
16、 30348.1Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959,United States.T 401 Fiber analysis of paper and paperboard5T 403 Bursting strength of paper5T 410 Grammage of paper and paperboard(weight per unitarea)5T 411 Thickness(caliper)of paper and paperboard5T 412Moisture in paper and paperboard5T 414Internal tearing resistance of paper5T 425 Opacity of paper(15/diffuse illuminant A,89%reflectance backing and paper backing)5T 452 Brightness of pulp,pap
