ČSN EN 15561 (654870)

Inorganic fertilizers - Determination of total nitrogen in calcium cyanamide containing nitrates

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STANDARD published on 1.3.2024


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The information about the standard:

Designation standards: ČSN EN 15561
Classification mark: 654870
Catalog number: 518961
Publication date standards: 1.3.2024
SKU: NS-1167160
The number of pages: 12
Approximate weight : 36 g (0.08 lbs)
Country: Czech technical standard
Category: Technical standards ČSN

The category - similar standards:

Fertilizers

Annotation of standard text ČSN EN 15561 (654870):

Tento dokument specifikuje metodu pro stanovení celkového dusíku v kyanamidu vápenatém. Metoda je použitelná na kyanamid vápenatý s obsahem dusičnanů. Redukce dusičnanového dusíku na amoniak kovovým železem a roztokem chloridu cínatého. Rozklad v kyselině sírové. Destilace amoniaku z alkalického roztoku, absorpce v přebytku odměrného roztoku kyseliny sírové a zpětná titrace odměrným roztokem hydroxidu sodného nebo draselného

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