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ISO 7408:1983

Fertilizers - Determination of ammoniacal nitrogen content in the presence of other substances which release ammonia when treated with sodium hydroxide - Titrimetric method

Pages: 5
Publication date: 1983-12-01
Price: Contact

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The method consists in entraining, by means of a strong current of air, of the ammonia from a moderately alkaline test mixture at ambient temperature into standard volumetric sulfuric acid solution, and back-titrating of the excess sulfuric acid solution with standard volumetric sodium hydroxide solution.
Document identifier
ISO 7408:1983
Title
Fertilizers - Determination of ammoniacal nitrogen content in the presence of other substances which release ammonia when treated with sodium hydroxide - Titrimetric method
ISO Category
TC 134/SC 4: Chemical analysis - STANDBY
Publication date
1983-12-01
Status
Effective
International Relationship
Cross references
Latest version
History of version
Keywords
Classification
65.080. Fertilizers
Pages
5
Price Contact

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