Active standard | Published: 25/04/2003

ISO 18922:2003

Imaging materials — Processed photographic films — Methods for determining scratch resistance
(Matériaux pour image — Films photographiques développés — Méthodes de détermination de la résistance a la rayure)

Available languages: English

Available design: electronic design (pdf), Print design

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Detail information

Designation: ISO 18922:2003

Publication date: 25/04/2003

Pages: 11

Country: International technical standard

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Anotation

Description / Abstract: ISO 18922:2002 is applicable to evaluating the scratch resistance of dry, processed photographic film. It specifies two test methods for evaluating the scratch resistance on either the emulsion or the base side. The two test methods usually give comparable results. It provides empirical laboratory tests made under controlled conditions, but does not necessarily predict the actual scratch resistance of a film in any particular commercial machine. Method A gives a measure of the minimum load requirement to produce a scratch, requires less elaborate evaluation equipment and is less stringent in its requirements of the optical condition of the specimens. Method B provides a measurement of haze produced by various stylus loads, is a more complete measure of scratch characteristics of a material and is the preferred method.

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