ISO 424:1994
Photography — Processing chemicals — Specifications for anhydrous sodium carbonate and sodium carbonate monohydrate
Photography — Processing chemicals — Specifications for anhydrous sodium carbonate and sodium carbonate monohydrate
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 4
- Дата публикации:
- 20 октября 1994 г.
- Издание:
- ISO IS 424 edition 2 version 1
- ICS:
- 37.040.30
Cancels and replaces the first edition (1976). Establishes criteria for the purity of photographic-grade anhydrous sodium carbonate and sodium carbonate monohydrate and specifies the test methods to be used to determine the purity.
Abstract
Overview
ISO 424:1994 is an international standard developed by ISO that details the specifications for anhydrous sodium carbonate and sodium carbonate monohydrate used as photographic processing chemicals. This standard establishes clear criteria for the purity of these chemicals and outlines the specific test methods required to determine compliance. By adhering to the requirements of ISO 424:1994, manufacturers and users in the photography industry ensure that chemical inputs meet the stringent quality standards necessary for reliable photographic processing, consistent results, and safety in handling.
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