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B51-14 (R2019) – Boiler, pressure vessel, and pressure piping code

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ISO 10349:1992

ISO 10349:1992 Photography – Photographic-grade chemicals – Test methods – Part 3: Determination of matter insoluble in ammonium hydroxide solution

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SKU: 966694b95c9a Category:

Description

The method is based on weighing a test portion, dissolution in water, addition of ammonium oxalate solution, diammonium hydrogen phosphate solution and ammonium hydroxide solution, allowing to stand for at least 8 h, filtering out the precipitate through filter paper, transfer of the filter paper with precipitate to a prepared crucible, burning it over a gas burner, incineration of the residue in a furnace, cooling in a desiccator, and reweighing.

Edition

1

Published Date

1992-12-30

Status

PUBLISHED

Pages

2

Language Detail Icon

English

Format Secure Icon

Secure PDF

Abstract

The method is based on weighing a test portion, dissolution in water, addition of ammonium oxalate solution, diammonium hydrogen phosphate solution and ammonium hydroxide solution, allowing to stand for at least 8 h, filtering out the precipitate through filter paper, transfer of the filter paper with precipitate to a prepared crucible, burning it over a gas burner, incineration of the residue in a furnace, cooling in a desiccator, and reweighing.

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