ISO 10349-9:1992
Photography — Photographic-grade chemicals — Test methods — Part 9: Reaction to ammoniacal silver nitrate
Photography — Photographic-grade chemicals — Test methods — Part 9: Reaction to ammoniacal silver nitrate
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 2
- Дата публикации:
- 30 декабря 1992 г.
- Издание:
- ISO IS 10349 edition 1 version 1
- ICS:
- 37.040.30
The method is based on weighing a test portion, dissolving it in water, transfer of the solution to each of two Nessler colour-comparison cylinders, preparing a test solution by adding freshly prepared ammoniacal silver nitrate solution to one of the Nessler cylinders and mixing well, preparing a blank solution by adding ammonium hydroxide solution and water to the other Nessler cylinder and mixing well, allowing the solutions to stand for 2 min, and comparing the colour and turbidity of the two solutions.
Abstract
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