720016

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

standard by International Organization for Standardization , 12/01/1983

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Full Description

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.

 

Product Details

Published:
12/01/1983
Number of Pages:
5
File Size:
1 file , 390 KB
Note:
This product is unavailable in Ukraine, Russia, Belarus