BS ISO 18908:2000
Current
The latest, up-to-date edition.
Imaging materials. Photographic film. Determination of folding endurance
Hardcopy , PDF
English
15-07-2000
Foreword
Introduction
1 Scope
2 Term and definition
3 Principle
4 Apparatus
5 Sampling
6 Conditioning and test conditions
7 Procedure
8 Interpretation of results
9 Test report
Annex A (informative) Numbering system for related
International Standards
Annex B (informative) Description of parts of MIT folding-
endurance tester
Bibliography
Defines a procedure to determine and quantitively express the folding endurance of photographic film. It is based on the MIT folding-endurance tester, is an analytical test and is not intended to simulate practical use conditions. Applies to film with or without a gelatin backing. May be applied to raw or processed film, although the flexibility level of a film can change greatly after processing.
| Committee |
CPW/42
|
| DevelopmentNote |
Reviewed and confirmed by BSI, August 2015. (07/2015)
|
| DocumentType |
Standard
|
| Pages |
18
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
This International Standard specifies a method for determining and quantitatively expressing the folding endurance of photographic film. The method is based on the MIT folding-endurance tester described in annexB. It is an analytical test and is not intended to simulate practical use conditions.
This International Standard is applicable to film with or without a gelatin backing. It may also be applied to either raw or processed film, although the flexibility level of a given film can be quite different after processing.
Equipment similar to that described in this International Standard may be used provided that a correlation has been established between the results obtained using such equipment and the results obtained using the equipment described.
| Standards | Relationship |
| ISO 18908:2000 | Identical |
| ISO 5626:1993 | Paper — Determination of folding endurance |
| ISO 18907:2013 | Imaging materials — Photographic films and papers — Wedge test for brittleness |
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