BS ISO 18901:2010
Current
The latest, up-to-date edition.
Imaging materials. Processed silver-gelatin-type black-and-white films. Specifications for stability
Hardcopy , PDF
English
30-06-2010
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Film base requirements
5 Processed film requirements
6 Requirements for the emulsion and backing
layers of processed film
7 Image-stability requirements
8 Test methods
Annex A (informative) - Washing and the effect of
residual thiosulfate on the developed silver
image
Annex B (informative) - Effect of residual silver
compounds on the developed silver image
Annex C (informative) - Accelerated image-stability
test for radiographic films
Annex D (informative) - Accelerated image-stability
test for microfilms
Annex E (informative) - Accelerated image-stability
test for aerial films
Bibliography
Describes the specifications for photographic films intended for the storage of records.
| Committee |
CPW/42
|
| DevelopmentNote |
Supersedes 01/702208 DC. (05/2002) Supersedes BS ISO 10602. (05/2002) Supersedes 09/30199295 DC. (06/2010) Reviewed and confirmed by BSI, August 2015. (07/2015)
|
| DocumentType |
Standard
|
| Pages |
32
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| Supersedes |
This International Standard establishes the specifications for photographic films intended for the storage of records.
It is applicable specifically to films with a base of safety cellulose ester or polyester having silver-gelatin emulsions, processed to produce a black-and-white silver image by negative or full-reversal processing. It applies to film processed using a monobath that includes thiosulfate as the fixing agent, followed by a conventional wash. It also is applicable to silver films given a stabilizing treatment by partial or full conversion to silver sulfide, silver selenide or gold.
This International Standard is applicable to films having ultrasonic or dielectric (induction-heated) splices. It does not cover films with splices made of adhesive tape or solvent-type spIices.
NOTE Solvent-type splices are suspect since they sometimes retain traces of residual solvents containing peroxide, which can pose some risk of oxidative attack on the silver image.
This International Standard is not applicable to films with chromogenic black-and-white images, colour images of any type, or to films with a magnetic recording track. It does not apply to films with silver images produced by dry or thermal processing or by diffusion-reversal processing, or to films that have been processed by a monobath using means other than a thiosulfate-type fixing solution. It is not applicable to films where the silver salts are removed by means other than thiosulfate solutions (see Reference [10]).
This International Standard is not applicable to films to which lacquers have been applied.
| Standards | Relationship |
| ISO 18901:2010 | Identical |
| ISO 18911:2010 | Imaging materials Processed safety photographic films Storage practices |
| ISO 18902:2013 | Imaging materials — Processed imaging materials — Albums, framing and storage materials |
| ISO 18906:2000 | Imaging materials Photographic films Specifications for safety film |
| ISO 18917:1999 | Photography Determination of residual thiosulfate and other related chemicals in processed photographic materials Methods using iodine-amylose, methylene blue and silver sulfide |
| ISO 5-3:2009 | Photography and graphic technology Density measurements Part 3: Spectral conditions |
| ISO 6328:2000 | Photography Photographic materials Determination of ISO resolving power |
| ISO 527-3:1995 | Plastics Determination of tensile properties Part 3: Test conditions for films and sheets |
| ISO 5-2:2009 | Photography and graphic technology Density measurements Part 2: Geometric conditions for transmittance density |
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