A test portion is evaporated in a tared platinum dish and the residue is weighed after drying at 105 2 °C. The method is applicable to solutions containing not more than 35 % (m/m) ammonia.
https://www.iso.org/standard/13694.html
Chemistry
- Naowarat Larpphoonthana-anan
- chemical
- Hits: 244
ISO 7109:1985 Ammonia solution for industrial use — Determination of residue after evaporation at 105 degrees C — Gravimetric method
- Document number: ISO7109:1985
- Orgnization: ISO
- Sub Categories: Standards/ Specification/ Regulations
- Document Type: Standard
