BS ISO 18918-2000 Imaging materials Processed photographic plates Storage practices《成像材料 经处理的照相干版 存储常例》.pdf

1、 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS ISO 18918:2000 ICS 37.

2、040.20 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Imaging materials Processed photographic plates Storage practicesThis British Standard, having been prepared under the direction of the Consumer Products and Services Sector Committee, was published under the authority of

3、the Standards Committee and comes into effect on 15 June 2000 BSI 06-2000 ISBN 0 580 36000 8 BS ISO 18918:2000 Amendments issued since publication Amd. No. Date Comments National foreword This British Standard reproduces verbatim ISO 18918:2000 and implements it as the UK national standard. It super

4、sedes BS ISO 3897:1997 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee CPW/42, Photography, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpr

5、etation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which

6、 implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not

7、 purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside fr

8、ont cover, the ISO title page, pages ii to v, a blank page, pages 1 to 20, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued.Referencenumber ISO18918:2000(E) INTERNATIONAL STANDARD ISO 18918 Firstedition 2000-03-15

9、ImagingmaterialsProcessed photographicplatesStoragepractices Matriaux pour image Plaques photographiques dveloppes Directives pour larchivageISO18918:2000(E) ii ISO18918:2000(E)iii Contents Foreword.iv Introduction.v 1 Scope1 2 Normativereferences1 3 Termsanddefinitions.2 4 Photographic-platehousing

10、s:Storageenclosuresandcontainers3 4.1 Individualenclosures4 4.2 Multiple-platecontainers4 5 Storagehousings.5 5.1 Drawercabinets.5 5.2 Shelvingandcabinets.6 6 Storagerooms6 6.1 Medium-termstoragerooms6 6.2 Extended-termstoragerooms6 7 Environmentalconditions.6 7.1 Introduction6 7.2 Temperatureandhum

11、idityspecificationsforstorage(seeannexesD,EandF)7 7.3 Environmentalconditioningrequirements.8 7.4 Airpurity(seeannexG).8 8 Fire-protectivestorage(seeannexH)9 9 Photographicplateidentification,handlingandinspection(seeannexesC,FandI)9 9.1 Identification.9 9.2 Handling9 9.3 Inspection.9 AnnexA(informa

12、tive)NumberingsystemforrelatedInternationalStandard11 AnnexB(informative)Photographicfilingenclosuresforplates12 AnnexC(informative)Silver-imagedegradation.13 AnnexD(informative)Humidityduringstorage14 AnnexE(informative)Temperatureduringstorage15 AnnexF(informative)Historicrecordsforphotographicpla

13、tes.16 AnnexG(informative)Air-entrainedandgaseousimpurities17 AnnexH(informative)Fireprotection.18 AnnexI(informative)Distinctionbetweenstorage(record)copiesandwork(reference)copies.19 Bibliography20ISO18918:2000(E) iv Foreword ISO(theInternationalOrganizationforStandardization)isaworldwidefederatio

14、nofnationalstandardsbodies(ISO memberbodies).TheworkofpreparingInternationalStandardsisnormallycarriedoutthroughISOtechnical committees.Eachmemberbodyinterestedinasubjectforwhichatechnicalcommitteehasbeenestablishedhas therighttoberepresentedonthatcommittee.Internationalorganizations,governmentaland

15、non-governmental,in liaisonwithISO,alsotakepartinthework.ISOcollaboratescloselywiththeInternationalElectrotechnical Commission(IEC)onallmattersofelectrotechnicalstandardization. InternationalStandardsaredraftedinaccordancewiththerulesgivenintheISO/IECDirectives,Part3. DraftInternationalStandardsadop

16、tedbythetechnicalcommitteesarecirculatedtothememberbodiesforvoting. PublicationasanInternationalStandardrequiresapprovalbyatleast75%ofthememberbodiescastingavote. AttentionisdrawntothepossibilitythatsomeoftheelementsofthisInternationalStandardmaybethesubjectof patentrights.ISOshallnotbeheldresponsib

17、leforidentifyinganyorallsuchpatentrights. InternationalStandardISO18918waspreparedbyTechnicalCommitteeISO/TC42, Photography. ThisfirsteditioncancelsandreplacesthefourtheditionofISO3897:1997ofwhichitconstitutesatechnical revision. ThisInternationalStandardisoneofaseriesofstandardsdealingwiththephysic

18、alpropertiesandstabilityof imagingmaterials.TofacilitateidentificationoftheseInternationalStandards,theyareassignedanumberwithin theblockfrom18900to18999(seeannexA). AnnexesAtoIofthisInternationalStandardareforinformationonly.ISO18918:2000(E)v Introduction Photographicplatesonglassormetalsupportshav

19、ebeeninexistencealmostsincethebeginningofphotography. Theyhavebecomeincreasinglyimportantasdocumentaryandpictorialreferencematerialinarchives,libraries, government,commerceandacademia. Thestabilityandusefullifeofprocessedphotographicplatesdependsontheirphysicalandchemicalproperties,as wellasonthecon

20、ditionsunderwhichtheyarestoredandused.ThisInternationalStandardprovides recommendationsonproperstorageconditionsandpractices.Althoughitisdifficulttodistinguishbetweenthe varioustypesofplatescoveredbythedefinitions(see3.7.1to3.7.8)withrespecttostoragelife,therecommen- dationsmaybeappliedtoallprocesse

21、dphotographicplates. Theimportantstorageelementsaffectingthepreservationofprocessedphotographicplatesareasfollows: relativehumidityandtemperatureofthestorageenvironment; hazardsoffire,water,andlightexposure; fungalgrowthandothermicroorganisms; contactwithcertainchemicalsinsolid,liquidorgaseousform;

22、physicaldamage. Theextenttowhichrelativehumidityandtemperature,orvariationsofboth,canbepermittedtoreachbeyond recommendedlimitswithoutproducingadverseeffectswilldependuponthedurationofexposure,biological conditionsconducivetofungalgrowth,andtheaccessibilityoftheatmospheretothesurfaces. Theterm“archi

23、val”isnolongerspecifiedtoexpresslongevityorstabilityinInternationalStandardsonimage materials,sinceithasbeeninterpretedtohavemanymeanings,rangingfrompreservinginformation“forever”, whichisunattainable,totemporarystorageofactivelyusedmaterials. ThisInternationalStandarddefinestwolevelsofrecommendedst

24、orageconditions:medium-termandextended- term.Medium-termstorageconditionscanbeusedtopreserveplatesforaminimumof10years.Extended-term storageconditionswillprolongthelifeofallplates,eventhosenotoptimizedforpermanence. Thespacerequirementsandcostsforestablishingandoperatingthetwolevelsofstorageconditio

25、ns(medium- termandextended-term)differsignificantly.Furthermore,thespecifiedlimitsoftemperatureandrelativehumidity forbothsetsofstorageconditionsmaynotberealizableduetobudgetaryconstraints,energyconsiderations, climaticconditions,buildingconstruction,etc.However,itmustberecognizedthattemperaturesand

26、relative humiditieswhicharehigherthanthespecifiedconditionswillreducetheeffectivenessofthestorageenvironment. Ifsuchdeviationisunavoidable,theenvironmentalconditionsclosesttothespecifiedlimitsshouldbeprovided.In anyevent,thebestpreservationofplateswillbeattainedwithextended-termconditions. Therecomm

27、endationsofthisInternationalStandardforprocessedphotographicplatesencompassthefollowing: storageenclosures,housingandrooms; atmosphericandenvironmentalconditions; fireprotection; handlingandinspectionprocedures. ThisInternationalStandarddoesnotpertaintomeansormethodsforprotectingphotographicplatesag

28、ainst naturalorman-madecatastrophes,withtheexceptionoffireanditsassociatedhazards;thesearesufficiently commontowarrantinclusionofprotectivemeasures.INTERNATIONALSTANDARD ISO18918:2000(E)1 ImagingmaterialsProcessedphotographicplatesStorage practices 1 Scope 1.1 ThisInternationalStandardspecifiesdarks

29、torageconditions,storagefacilities,andhandlingandinspecting proceduresforprocessedphotographicplateshavingintegralphotographiclayersandintendedforrecord purposes. 1.2 ThisInternationalStandardisapplicabletoblack-and-white,silver-image,gelatin,processedphotographic platesasdefinedin3.7.7.Itisalsoappl

30、icabletomedium-termandextended-termstorageconditionsasdefinedin 3.6and3.2,respectively. Nospecificdistinctionismade,otherthanthedegreeofcare,betweenphotographicplatesformedium-termor extended-termstorage.Recommendationsforplatestoragerelatetomaterials,methods,conditions,andformsof protectionapplicab

31、lespecificallytoplatesdefinedin1.1.However,thesestoragerecommendationsmayalsobe appliedtolacqueredandopaqueplates,toblack-and-whiteplatesalteredbydyesortoners,colourplatesand otherhistoricphotographicplatesdefinedin3.7.2to3.7.8. 1.3 Itisnotintendedtopredictorassignausefullifetimetoprocessedphotograp

32、hicplatesstoredinaccordance withthespecificationsofthisInternationalStandard. 1.4 RecommendationsforstorageofphotographicfilmsaregiveninISO18911andforstorageofprocessed photographicreflectionprintmaterialinISO18920. Althoughthereissomevariationinrecommendedstorageconditionsamongthesetypesofphotograp

33、hicmaterials, recommendedtemperatureandrelativehumidityrangesdooverlap.Ifallthreetypesofphotographicmaterialsare foundinonecollectionorwithinonestoragearea,thetemperatureandrelativehumidityshouldbechosensothat allmaterialsarestoredwithintheirrecommendedranges. 2 Normativereferences Thefollowingnorma

34、tivedocumentscontainprovisions,which,throughreferenceinthistext,constituteprovisions ofthisInternationalStandard.Fordatedreferences,subsequentamendmentsto,orrevisionsof,anyofthese publicationsdonotapply.However,partiestoagreementsbasedonthisInternationalStandardareencouragedto investigatethepossibil

35、ityofapplyingthemostrecenteditionsofthenormativedocumentsindicatedbelow.For undatedreferences,thelatesteditionofthenormativedocumentreferredtoapplies.MembersofISOandIEC maintainregistersofcurrentlyvalidInternationalStandards. ISO14523:1999, Photography Processed photographic materials Photographic a

36、ctivity test for enclosure materials. ISO18902: 1) , Imaging materials Processed films, plates and papers Filing enclosures and storage containers. ISO18911: 1) , Imaging materials Processed safety photographic films Storage practices. ISO18920: 1) , Imaging materials Processed reflection prints Sto

37、rage practices. 1)Tobepublished.ISO18918:2000(E) 2 3 Termsanddefinitions ForthepurposesofthisInternationalStandard,thefollowingtermsanddefinitionsapply. 3.1 archivalmedium recordingmaterialthatcanbeexpectedtoretaininformationforever,sothatsuchinformationcanberetrieved withoutsignificantlosswhenprope

38、rlystored NOTE Thereis,however,nosuchmaterialanditisnotatermtobeusedinInternationalStandardsorsystem specifications. 3.2 extended-termstorageconditions storageconditionssuitableforthepreservationofrecordedinformationhavingapermanentvalue 3.3 fire-protectivestorage facilitydesignedtoprotectrecordsaga

39、instexcessivetemperatures,waterandotherfire-fightingagents,andsteam developedbyinsulationofsafesorcausedbytheextinguishingoffiresandcollapsingstructures 3.4 fire-resistantvault fire-resistantvaultsasdefinedinappropriatenationalstandardsandregulations NOTE See1and2inthebibliography. 3.5 insulatedreco

40、rdcontainers(Class150) insulatedrecordcontainers(Class150)asdefinedinappropriatenationalstandardsandregulations NOTE See3and4inthebibliography. 3.6 medium-termstorageconditions storageconditionssuitableforthepreservationofrecordedinformationforaminimumof10years 3.7 photographiclayer sensitivecoating

41、thatyieldsanimageafterexposuretoradiantflux NOTE Exposureisusuallyfollowedbyprocessingtogeneratetheimage. 3.7.1 photographicplate materialconsistingofoneormoreradiation-sensitivelayerscoatedonarigidsupport,suchasglassormetal,that yieldsavisibleimage 3.7.2 albumenplate glasssheetbearingasilverhalide/

42、albumenlayerwhichyieldsavisibleimageafterexposureandprocessing 3.7.3 ambrotypeplate glassplatecollodionpositive,i.e.,aglasssheetbearingathinsilverhalide/cellulosenitratelayerwhichyieldsa visibleimageafterexposureandprocessing NOTE Theprocessednegativesilverimageappearsasapositivewhenbackedbyadarkfie

43、ld.ISO18918:2000(E)3 3.7.4 collodionplate collodionwetordryplate glasssheetbearingathinsilverhalide/cellulosenitratelayerwhichyieldsavisibleimageafterexposureand processing 3.7.5 colourscreenplate glasssheetbearingacolourscreenconsistingofdyedelementsincontactwithasilverhalide/gelatinlayerwhich yiel

44、dsavisibleimageafterexposureandprocessing 3.7.6 ferrotypeplate tintype enamelledironsheetbearingathinsilverhalide/cellulosenitratelayerwhichyieldsavisibleimageafterexposure andprocessing NOTE Thisisnottobeconfusedwithathinmetalsheetwithaglossysurfaceuponwhichhigh-glassphotographicprints aredried. 3.

45、7.7 gelatinplate gelatindryplate glasssheetbearingasilverhalide/gelatinlayerwhichyieldsavisibleimageafterexposureandprocessing 3.7.8 lanternslide glasssheetbearingasilverhalide/gelatinlayerwhichyieldsavisibleimageafterexposureandprocessing NOTE Theimagelayeroflantern-slideplatesisusuallyprotectedwit

46、hacoverglass,boundonalledgeswithadhesive tape,asthistypeofplateisviewedbyprojection.Albumenandcolour-screenplatesarealsofoundaslanternslides. 3.8 storagecontainer boxorcanusedtostoreplates 3.9 storageenclosure anyitemincloseordirectcontactwithrecordingmaterialsuchasfolders,envelopes,sleeves,albumsan

47、dmats 3.10 storagehousing physicalstructurethatsupportsmaterialsandtheirenclosures NOTE Itmayconsistofdrawers,racks,shelvesorcabinets. 4 Photographic-platehousings:Storageenclosuresandcontainers Processedphotographicplatesrequireprotectionagainstalltypesofphysicaldamagesuchasscratches, abrasion,fing

48、erprints,breakage,etc.Filingenclosuresandcontainersprovidephysicalprotectionthatminimizesor preventssuchdamage.Processedphotographicfilmandprintsshallnotbestoredwithinthesameenclosureor containerasphotographicplates.Differenttypesofphotographicplatesshallnotbestoredtogetherwithinthe sameenclosureorc

49、ontainer,butinsteadshallbesegregatedbytype(seedefinitions3.7.2to3.7.8). Enclosuresandcontainersshallbedesignedtopermitverticalstorageofplates,restingononelongedge.Plates shallnotbestoredinaflatorhorizontalpositionsincethoseonthebottommaybeputunderexcessivepressure. Platesmadefrom19thcenturyglassareespeciallyvulnerabletostress-relatedfractureswhenstoredhorizontally, sincesuchglassusuallyisnotflat.ISO18918:2000(E) 4 Ifunprotectedplatesarestoredincontact,theyshallbeorientedwiththeemulsionsideagainstthebackside,not emulsionagains