Photography — Photographic-grade chemicals — Test methods — Part 4: Determination of residue after ignition
NORMA vydaná dňa 30.12.1992
Označenie normy: ISO 10349-4:1992
Dátum vydania normy: 30.12.1992
Počet strán: 2
Približná hmotnosť: 6 g (0.01 libier)
Krajina: Medzinárodná technická norma
Kategória: Technické normy ISO
Description / 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.