ISO 3625:1994 PDF
Photography — Processing chemicals — Specifications for potassium hydroxide
Photography — Processing chemicals — Specifications for potassium hydroxide
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 4
- Дата публикации:
- 21 апреля 1994 г.
- Издание:
- ISO IS 3625 edition 2 version 1
- ICS:
- 37.040.30
Establishes criteria for the purity and describes the test methods for heavy metals content, iron content, halides, carbonate, appearance of solution.
Abstract
Overview
ISO 3625:1994 is an international standard developed by the International Organization for Standardization (ISO) that specifies the quality and purity requirements for potassium hydroxide used in photographic processing. This standard defines the chemical and physical criteria necessary to ensure potassium hydroxide’s suitability in photography applications, focusing on purity levels and the presence of impurities that may affect photographic outcomes. It also describes standardized test methods for assessing potassium hydroxide's quality, such as tests for heavy metals, iron, halides, carbonate content, and the appearance of solutions.
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