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Fertilizers. Determination of ammoniacal nitrogen content in the presence of other substances which release ammonia when treated with sodium hydroxide. Titrimetric method
STANDARD published on 1.8.1993
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Designation standards: STN ISO 7408
Classification mark: 654932
Catalog number: 66517
Publication date standards: 1.8.1993
SKU: NS-544935
The number of pages: 8
Approximate weight : 24 g (0.05 lbs)
Country: Slovak technical standard
Category: Technical standards STN
Tato norma stanoví zkušební metodu pro stanovení amonného dusíku v průmyslových hnojivech obsahujících jiné látky, jako jsou močovina nebo močovino-aldehydové kondenzáty, které uvolňují amoniak v přítomnosti hydroxidu sodného.
1.8.1983
1.8.1983
1.9.1993
WITHDRAWN
1.2.1980
1.5.1981
1.11.1987
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