ISO 3627:2001 PDF
Photography — Processing chemicals — Specifications for anhydrous sodium metabisulfite
Photography — Processing chemicals — Specifications for anhydrous sodium metabisulfite
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 8
- Дата публикации:
- 20 декабря 2001 г.
- Издание:
- ISO IS 3627 edition 3 version 1
- ICS:
- 37.040.30
This International Standard establishes criteria for the purity of photographic-grade anhydrous sodium metabisulfite and specifies the tests to be used to determine the purity.
Abstract
Overview
ISO 3627:2001 - "Photography - Processing chemicals - Specifications for anhydrous sodium metabisulfite" defines purity and test requirements for . The standard establishes chemical and physical acceptance criteria, prescribes test methods (including titration procedures), and references general analytical methods for sampling and safety. It is intended to ensure chemicals used in photographic processing do not cause undesirable photographic effects.
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