ASTM_E_1254_-_13.pdf

Designation:E125413Standard Guide forStorage of Radiographs and Unexposed IndustrialRadiographic Films1This standard is issued under the fixed designation E1254;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 guide may be used for the control and maintenanceof industrial radiographs and unexposed films used for indus-trial radiography.1.2 The values stated in inch-pound units are to be regardedas standard.The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.NOTE1For information purposes,refer to Terminology E1316.Theterms stated therein,however,are not specifically referenced in the text ofthis document.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:2E94 Guide for Radiographic ExaminationE746 Practice for Determining Relative Image Quality Re-sponse of Industrial Radiographic Imaging SystemsE1316 Terminology for Nondestructive Examinations2.2 ISO Standards:3ISO 18901 Imaging MaterialsProcessed silver-gelatintype black-and-white films-Specifications for stabilityISO 18902Imaging MaterialsProcessed photographicfilms,plates,and papers-Filing enclosures and storagecontainersISO 18916 ProcessedPhotographicMaterialsPhotographic activity test for enclosure materialsISO 18917 PhotographyDetermination of residual thiosul-fate and other related chemicals in processed photographicmaterials-Methods using iodine-amylose,methylene blueand silver sulfide3.Significance and Use3.1 The provisions of this guide are intended to control thequality of industrial radiographs and unexposed films only andare not intended for controlling the acceptability of thematerials or products radiographed.It is further intended thatthis guide be used as an adjunct to Guide E94.3.2 The necessity for applying specific control proceduressuch as those described in this guide is dependent to a certainextent,on the degree to which a user adheres to goodprocessing and storage practices as a matter of routine proce-dure.4.Unexposed Film Storage4.1 Unopened Containers:4.1.1 Storage RecommendationsAny films in containerssealed by the manufacturer and not opened should be storedwith the films on edge,or as recommended by the specificmanufacturer,to avoid container damage and possible filmdamage.Storage temperature should be between 40 F(4.4 C)and 75 F(24 C)at a relative humidity range of 30 to 60%.4.1.2 Higher Storage TemperaturesWhen temperaturesexceed 90 F(32 C)for 30 days,some unexposed films maybe processed under normal existing conditions to test forfogging.The outside sheets in a pack of cut films or the endsof rolled films are most affected by heat.If excessive foggingis found on these samples,subsequent sampling may be doneon inner sheets or further in on the rolls to avoid unnecessaryscrap.Alimit of 0.30 density units total for the base density andfog is acceptable(see 4.3)for industrial radiographic films.4.1.3 Lower Storage TemperaturesThe temperature can belower than 40 F(4.4 C)as lower temperatures reduce the rateof heat and age fogging.However,lower temperatures willhave no effect on background radiation fogging.Films stored atthese lower temperatures in unopened containers should beallowed to stabilize at room temperature before opening thecontainers.The stabilization time varies with the bulk of the1This guide is under the jurisdiction of ASTM Committee E07 on Nondestruc-tive Testing and is the direct responsibility of Subcommittee E07.01 on Radiology(X and Gamma)Method.Current edition approved Dec.1,2013.Published December 2013.Originallyapproved in 1988.Last previous edition approved in 2008 as E1254 08.DOI:10.1520/E1254-13.2For 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.3Available from American National Standards Institute(ANSI),25 W.43rd St.,4th Floor,New York,NY 10036,http:/www.ansi.org.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 stored films and the temperature stored at.The lower thetemperature and greater the bulk the longer the time required toreach room temperature.If the containers are opened too soon,condensation could cause the films to stick to whatever istouching their surfaces.4.1.4 Lower or Higher Storage Humidities If the relativehumidity is below 30%and the