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ISO
ISO 10349-7:1992

ISO 10349-7:1992

Current

Current

The latest, up-to-date edition.

Photography — Photographic-grade chemicals — Test methods — Part 7: Determination of alkalinity or acidity

Available format(s)

Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users

Language(s)

English

Published date

30-12-1992

Publisher

International Organization for Standardization

The method is based on weighing the test portion, dissolution in carbon-dioxide-free water, adding phenolphthalein indicator, and observing the colour of the test solution: if the test solution turns pink, determination of the alkalinity, if it remains colourless, determination of the acidity.

Committee
ISO/TC 42
DocumentType
Standard
Pages
2
PublisherName
International Organization for Standardization
Status
Current

BS ISO 420:1994 Photography. Processing chemicals. Specifications for potassium bromide
ISO 3625:1994 Photography — Processing chemicals — Specifications for potassium hydroxide
BS ISO 3623:1994 Photography. Processing chemicals. Specifications for anhydrous potassium carbonate
BS ISO 3617:1994 Photography. Processing chemicals. Specifications for sodium hydroxide
ISO 10636:1994 Photography Processing chemicals Specifications for anhydrous sodium thiosulfate and sodium thiosulfate pentahydrate
BS ISO 418:2001 Photography. Processing chemicals. Specifications for anhydrous sodium sulfite
BS ISO 3943:1993 Photography. Processing chemicals. Specifications for anhydrous sodium acetate
BS ISO 3625:1994 Photography. Processing chemicals. Specifications for potassium hydroxide
ISO 3617:1994 Photography Processing chemicals Specifications for sodium hydroxide
ISO 420:1994 Photography Processing chemicals Specifications for potassium bromide
ISO 418:2001 Photography Processing chemicals Specifications for anhydrous sodium sulfite
BS ISO 10636:1994 Photography. Processing chemicals. Specification for anhydrous sodium thiosulfate and sodium thiosulfate pentahydrate
ISO 3943:1993 Photography — Processing chemicals — Specifications for anhydrous sodium acetate
ISO 3623:1994 Photography Processing chemicals Specifications for anhydrous potassium carbonate

ISO 10349-1:2002 Photography Photographic-grade chemicals Test methods Part 1: General

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Hardcopy - English
PDF - English
PDF 3 Users - English
PDF 5 Users - English
PDF 9 Users - English
Hardcopy - English
PDF - English
PDF 3 Users - English
PDF 5 Users - English
PDF 9 Users - English
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