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.
| CSA Group | |
|---|---|
| Product Category | Standards and Technical Documents |
| Product Number | ISO 10349-4:1992 |
| Product Name | Photography - Photographic-grade chemicals - Test methods - Part 4: Determination of residue after ignition |