ISO 7105:1985
Liquefied anhydrous ammonia for industrial use; Determination of water content; Karl Fischer method
- Standard No.
- ISO 7105:1985
- Release Date
- 1985
- Published By
- International Organization for Standardization (ISO)
- Latest
- ISO 7105:1985
- Scope
- A test portion is evaporated in the presence of ethanediol and the water content of the residue is determined by the Karl Fischer method with direct electrometric measurement. The method is applicable to products having water contents equal to or greater than 50 mg/kg. For water contents greater than 1000 mg/kg it is preferable to dilute the evaporation residue with anhydrous methanol in accordance with ISO 4276 and titrate an aliquot portion of the diluted solution.
ISO 7105:1985 history
- 1985 ISO 7105:1985 Liquefied anhydrous ammonia for industrial use; Determination of water content; Karl Fischer method
