Cookies
Wir benötigen Ihre Einwilligung zur Verwendung der einzelnen Daten, damit Sie unter anderem Informationen zu Ihren Interessen einsehen können. Klicken Sie auf "OK", um Ihre Zustimmung zu erteilen.
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
Automatische name übersetzung:
Fotografie - Bestimmung der Restthiosulfat und anderen verwandten Chemikalien in verarbeiteten fotografischen Materialien - Verfahren unter Verwendung von Iod-Amylose, Methylenblau und Silbersulfid
NORM herausgegeben am 3.6.1999
Informationen über die Norm:
Bezeichnung normen: ISO 18917:1999
Ausgabedatum normen: 3.6.1999
SKU: NS-428296
Zahl der Seiten: 21
Gewicht ca.: 63 g (0.14 Pfund)
Land: Internationale technische Norm
Kategorie: Technische Normen ISO
Kategorie - ähnliche Normen:
Die Annotation des Normtextes ISO 18917:1999 :
Description / Abstract: 1.1 This International Standard specifies test methods for the determination of residual thiosulfate and other related chemicals in processed photographic materials. 1.2 This International Standard applies to silver halide/gelatin products that have been processed with a final thiosulfate fixing bath and a water wash. This International Standard does not apply to stabilised black-and-white products, thermally processed films, or instant-type products. The procedures given in this International Standard measure residual thiosulfate, and the silver densitometric method measures residual related polythionate materials as well. Measurements carried out by the procedures in this International Standard may, within the limitations stated in annexes A and B, correlate with the image stabilities of processed photographs. 1.3 Film or plates with photographic-sensitive layers on both sides, or with a photographic sensitive layer on one side and a gelatin backing layer on the reverse side, may contain approximately twice as much thiosulfate after processing as samples having a coating on one side only. This situation will be true for materials for which residual thiosulfate is determined by the iodine-amylose or methylene blue procedures. NOTE For the method of reporting such results, see figure 1, example 2. 1.4 The iodine-amylose can be used with fibre-based paper, resin-coated paper, films and plates. It is the method to be used with films and papers containing incorporated developing agents. 1.5 The methylene blue method can be used with fibre-based paper, resin-coated paper, films and plates but not with films and paper containing incorporated developing agents. 1.6 The silver sulfide densitometric method measures thiosulfates, polythionates and all other residual chemicals in a processed product that react with silver ion to form a silver "stain" under the conditions of the test. 1.7 A tabulated summary of methods, scope, etc. is given in annex B.
Empfehlungen:
Aktualisierung der technischen Normen
Wollen Sie sich sicher sein, dass Sie nur die gültigen technischen Normen verwenden?
Wir bieten Ihnen eine Lösung, die Ihnen eine Monatsübersicht über die Aktualität der von Ihnen angewandten Normen sicher stellt.
Brauchen Sie mehr Informationen? Sehen Sie sich diese Seite an.
