International Organization for Standardization (ISO)
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ISO 10349-2:1992
Scope
The method is based on transfer of the test portion in a conical flask containing water, heating on a steam bath, filtering through a dry porous crucible, washing with hot water, drying the crucible plus residue, and reweighing.
ISO 10349-2:1992 history
1992ISO 10349-2:1992 Photography; photographic-grade chemicals; test methods; part 2: determination of matter insoluble in water