ISO 3623:1994 PDF
Photography — Processing chemicals — Specifications for anhydrous potassium carbonate
Photography — Processing chemicals — Specifications for anhydrous potassium carbonate
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 5
- Дата публикации:
- 22 декабря 1994 г.
- Издание:
- ISO IS 3623 edition 2 version 1
- ICS:
- 37.040.30
Cancels and replaces the first edition (1976). Establishes criteria for the purity of photographic-grade anhydrous potassium carbonate and specifies the tests to be used to determine the purity.
Abstract
Overview
ISO 3623:1994 is an internationally recognized standard published by the International Organization for Standardization (ISO). It specifies the for anhydrous potassium carbonate used in photographic processing chemicals. This second edition, released in December 1994, replaces the original 1976 version and sets stringent criteria to ensure the chemical's photographic-grade quality. The standard highlights test procedures to verify purity, chemical content, and physical properties essential for photographic applications.
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