Reference number
ISO 10349-4:1992
ISO 10349-4:1992
© ISO 2024
International Standard
ISO 10349-4:1992
Photography — Photographic-grade chemicals — Test methods — Part 4: Determination of residue after ignition
Edition 1
1992-12
1992-12
ISO 10349-4:1992
21261
Published
(Edition 1, 1992)
This publication was last reviewed and confirmed in 2023.
Therefore this version remains current.
Abstract
The method is based on weighing a test portion and placing it in prepared ignition crucible, heating the crucible over a low flame to drive off any volatile matter, incineration in a furnace, cooling to room temperature in a desiccator, and reweighing.