ISO 18905:2002 PDF

Scope: This International Standard establishes specifications for the stability of polyester-base safety film which has an ammonia-processed diazo photographic image. It is applicable only to diazo photographic films intended for and used as LE-10 and LE-100 storage copies, which shall be stored in accordance with ISO 18902 and ISO 18911. This document characterizes only the inherent keeping behaviour of the film. However, the suitability of a film record after extended storage depends on both the inherent ageing characteristics of the film and the original image quality. The latter is discussed in annex C. This International Standard is applicable to photographic film in which the image layer is a discrete layer attached to a transparent support, and it applies to roll film and sheet film. This International Standard is not applicable to diazo film records intended and used as "work" or "use" copies as discussed in annex B.

ISO 18905:2002 Referenced Document

ISO 18902:2001 Imaging materials - Processed photographic films, plates and papers - Filing enclosures and storage containers
ISO 18906:2000 Imaging materials - Photographic films - Specifications for safety film
ISO 18907:2000 Imaging materials - Photographic films and papers - Wedge test for brittleness
ISO 18911:2000 Imaging materials - Processed safety photographic films - Storage practices
ISO 5-2:2001 Photography - Density measurements - Part 2: Geometric conditions for transmission density
ISO 5-3:1995 Photography - Density measurements - Part 3: Spectral conditions
ISO 527-3:1995 Plastics - Determination of tensile properties - Part 3: Test conditions for films and sheets

2002 ISO 18905:2002 Imaging materials - Ammonia-processed diazo photographic film - Specifications for stability