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1、BRITISH STANDARD BS ISO 3897:1997 Photography Processed photographic plates Storage practices ICS 37.040.99 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 12:54:18 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO 3897:1997 This British Standard, having been prepared under the direction of t
2、he Consumer Products and Services Sector Board, was published under the authority of the Standards Board and comes into effect on 15 March 1998 BSI 04-1999 ISBN 0 580 29605 9 National foreword This British Standard reproduces verbatim ISO 3897:1997 and implements it as the UK national standard. It s
3、upersedes BS ISO 3897:1992 which is withdrawn.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 int
4、erpretation, 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 w
5、hich 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
6、 not 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 insid
7、e front cover, pages i and ii, the ISO title page, page ii, pages 1 to 12, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Amendments issued s
8、ince publication Amd. No.DateComments Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 12:54:18 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO 3897:1997 BSI 04-1999i Contents Page National forewordInside front cover Forewordii Introduction1 1Scope1 2Normative references2 3Definitions2 4Phot
9、ographic plate housings: storage enclosures and containers4 5Storage housings5 6Storage rooms6 7Environmental conditions6 8Fire-protection storage8 9Photographic plate identification, handling and inspection9 Annex A (informative) Distinction between storage (record) copies and work (reference) copi
10、es10 Annex B (informative) Humidity during storage10 Annex C (informative) Temperature during storage10 Annex D (informative) Historic records for still photographic plates11 Annex E (informative) Air-entrained and gaseous impurities11 Annex F (informative) Fire protection11 Annex G (informative) Si
11、lver image discoloration12 Annex H (informative) Photographic filing enclosures for plates12 Annex J (informative) BibliographyInside back cover Table 1 Maximum temperatures and average relative humidity ranges for storage6 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 12:54:18 GMT+00:00 20
12、06, Uncontrolled Copy, (c) BSI ii blank Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 12:54:18 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 12:54:18 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO 3897:1997 ii BSI 04-1999 Foreword ISO (
13、the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical commi
14、ttee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotec
15、hnical standardization. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. International Standard ISO 3897 was prepared by T
16、echnical Committee ISO/TC 42, Photography. This fourth edition cancels and replaces the third edition (ISO 3897:1992), of which it constitutes a technical revision. Annex A to Annex H and Annex J of this International Standard are for information only. Descriptors: Photography, black-and-white photo
17、graphy, photographic materials, photographic plates, storage, preservation. Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 12:54:18 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO 3897:1997 BSI 04-19991 Introduction Photographic plates on glass or metal supports have been in existence almo
18、st since the beginning of photography. They have become increasingly important as documentary and pictorial reference material in archives, libraries, government, commerce and academia. The stability and useful life of processed photographic plates depends on their physical and chemical properties,
19、as well as on the conditions under which they are stored and used. This International Standard provides recommendations on proper storage conditions and practices. Although it is difficult to distinguish between the various types of plates covered by the definitions (see 3.7 to 3.7.8) with respect t
20、o storage life, the recommendations may be applied to all processed photographic plates. The important storage elements affecting the preservation of processed photographic plates are as follows: relative humidity and temperature of the storage environment; hazards of fire, water, and light exposure
21、; fungal growth; contact with certain chemicals in solid, liquid, or gaseous form; physical damage. The extent to which relative humidity and temperature, or variations of both, can be permitted to reach beyond recommended limits without producing adverse effects will depend upon the duration of exp
22、osure, on biological conditions conducive to fungal growth, and on the accessibility of the atmosphere to the surfaces. The term “archival” is no longer specified to express longevity or stability in International Standards on image materials since it has been interpreted to have many meanings, rang
23、ing from preserving information “forever”, which is unattainable, to temporary storage of actively used materials. This International Standard defines two levels of recommended storage conditions: medium-term and extended-term. Medium-term storage conditions can be used to preserve plates for a mini
24、mum of 10 years. Extended-term storage conditions will prolong the life of all plates, even those not optimized for permanence. The space requirements and costs for establishing and operating the two levels of storage conditions (medium-term and extended-term) differ significantly. Furthermore, the
25、specified limits of temperature and relative humidity for both sets of storage conditions may not be realizable due to budgetary constraints, energy considerations, climatic conditions, building construction, etc. However, it must be recognized that temperatures and relative humidities which are hig
26、her than the specified conditions will reduce the effectiveness of the storage environment. If such deviation is unavoidable, the environmental conditions closest to the specified limits should be provided. In any event, the best preservation of plates will be attained with extended-term conditions.
27、 The recommendations of this International Standard for processed photographic plates encompass the following: storage enclosures, housing and rooms; atmospheric and environmental conditions; fire protection; handling and inspection procedures. This International Standard does not pertain to means o
28、r methods for protecting photographic plates against natural or man-made catastrophes, with the exception of fire and its associated hazards; these are sufficiently common to warrant inclusion of protective measures. 1 Scope 1.1 This International Standard specifies dark storage conditions for, stor
29、age facilities for and procedures for handling and inspecting processed photographic plates having integral photographic layers and intended for record purposes. 1.2 This International Standard applies to black-and-white, silver-image, gelatin, processed photographic plates as defined in 3.7.7. Lice
30、nsed Copy: sheffieldun sheffieldun, na, Sun Nov 26 12:54:18 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO 3897:1997 2 BSI 04-1999 No specific distinction is made, other than the degree of care, between photographic plates for medium-term or extended-term storage. Recommendations for plate storag
31、e relate to materials, methods, conditions, and forms of protection applicable specifically to plates defined in the first paragraph of this subclause. However, the storage recommendations may also be applied to lacquered and opaque plates, to black-and-white plates altered by dyes or toners, colour
32、 plates and other historic photographic plates defined in 3.7.2 to 3.7.8. It is not intended to predict or assign a useful lifetime to processed photographic plates stored in accordance with the specifications of this International Standard. 1.3 Recommendations for storage of photographic films are
33、given in ISO 5466 and for storage of processed photographic reflection print material in ISO 6051. Although there is some variation in recommended storage conditions among these types of photographic materials, recommended temperature and relative humidity ranges do overlap. If all three types of ph
34、otographic materials are found in one collection or within one storage area, the temperature and relative humidity should be chosen so that all materials are stored within their recommended ranges. 1.4 This International Standard applies to medium-term and extended-term storage conditions as defined
35、 in 3.6 and 3.2, respectively. 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this International Standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and part
36、ies to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. Members of IEC and ISO maintain registers of currently valid International Standards. ISO 5466:1996, Photography Processed safet
37、y photographic films Storage practices. ISO 6051:1997, Photography Processed reflection prints Storage practices. ISO 10214:1991, Photography Processed photographic materials Filing enclosures for storage. 3 Definitions For the purposes of this International Standard, the following definitions apply
38、. 3.1 archival medium a recording material that can be expected to retain information forever so that such information can be retrieved without significant loss when properly stored NOTEThere is, however, no such material and it is not a term to be used in International Standards or system specifica
39、tions. 3.2 extended-term storage conditions storage conditions suitable for the preservation of recorded information having a permanent value 3.3 fire-protection storage facility facility designed to protect records against excessive temperatures, water and other fire-fighting agents, steam develope
40、d by insulation of safes or caused by the extinguishing of fire, and collapsing structures 3.4 fire-resistant vault vault as defined in appropriate national standards and regulations (1,2 in Annex J) 3.5 insulated record containers (Class 150) insulated record containers (Class 150) as defined in ap
41、propriate national standards and regulations (3,4 in Annex J) 3.6 medium-term storage conditions storage conditions suitable for the preservation of recorded information for a minimum of 10 years Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 12:54:18 GMT+00:00 2006, Uncontrolled Copy, (c) B
42、SI BS ISO 3897:1997 BSI 04-19993 3.7 Photographic layer A sensitive coating that yields an image after exposure to radiant flux. Exposure is usually followed by processing to generate the image. 3.7.1 photographic plate a material consisting of one or more radiation-sensitive layers coated on a rigi
43、d support, for example, of glass or metal, that yields a visible image 3.7.2 albumen plate a glass sheet bearing a silver halide/albumen layer which yields a visible image after exposure and processing 3.7.3 ambrotype plate a glass plate collodion positive, i.e. a glass sheet bearing a thin silver h
44、alide/cellulose nitrate layer which yields a visible image after exposure and processing. The processed negative silver image appears as a positive when backed by a dark field 3.7.4 collodion plate; collodion wet or dry plate a glass sheet bearing a thin silver halide/cellulose nitrate layer which y
45、ields a visible image after exposure and processing 3.7.5 colour screen plate a glass sheet bearing a colour screen consisting of dyed elements in contact with a silver halide/gelatin layer which yields a visible image after exposure and processing 3.7.6 ferrotype plate1); tintype an enamelled iron
46、sheet bearing a thin silver halide/cellulose nitrate layer which yields a visible image after exposure and processing 3.7.7 gelatin plate; gelatin dry plate a glass sheet bearing a silver halide/gelatin layer which yields a visible image after exposure and processing 3.7.8 lantern slide a glass shee
47、t bearing a silver halide/gelatin layer which yields a visible image after exposure and processing. The image layer of lantern slide plates is usually protected with a cover glass, bound on all edges with adhesive tape, as this type of plate is viewed by projection. Albumen and colour screen plates
48、are also found as lantern slides 3.8 storage container a box or can used to store plates 3.9 storage enclosure any item in close or direct contact with recording material such as folders, envelopes, sleeves, albums, mats, cartridges or cassettes 1) Not to be confused with a thin metal sheet with a g
49、lossy surface upon which high-gloss photographic prints are dried. Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 12:54:18 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO 3897:1997 4 BSI 04-1999 3.10 storage housing a physical structure supporting materials and their enclosures. It may consist of drawers, racks, shelves or cabinets 4 Photographic plate housings: storage enclosures and containers Processed photographic plates require protection against all types of physical damage such as scratches, abrasion, fingerprints, bre
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