NF U42-191

NF U42-191

September 1988
Standard Cancelled

Fertilizers. Nitrogenous fertilizers containing synthetic organic nitrogen. Determination of the types of nitrogen.

La réglementation française prévoit pour les engrais azotés contenant de l'azote de synthèse organique la déclaration de leurs teneurs respectives en azote total, ammoniacal, uréique, nitrique et de synthèse organique, ainsi que la solubilité de l'azote de synthèse organique. La méthode décrite permet donc de déterminer ces valeurs.

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Main informations

Collections

National standards and national normative documents

Publication date

September 1988

Number of pages

12 p.

Reference

NF U42-191

ICS Codes

65.080   Fertilizers

Classification index

U42-191

Print number

1 - 01/09/1988
Sumary
Fertilizers. Nitrogenous fertilizers containing synthetic organic nitrogen. Determination of the types of nitrogen.

La réglementation française prévoit pour les engrais azotés contenant de l'azote de synthèse organique la déclaration de leurs teneurs respectives en azote total, ammoniacal, uréique, nitrique et de synthèse organique, ainsi que la solubilité de l'azote de synthèse organique. La méthode décrite permet donc de déterminer ces valeurs.
Replaced standards (1)
U42-191
November 1984
Standard Cancelled
Fertilizers. Nitrogenous fertilizers containing synthetic organic nitrogen. Determination of the types of nitrogen.

Standard replaced by (1)
NF U42-191
November 2019
Standard Current
Fertilizers - Nitrogenous fertilizers containing synthetic organic nitrogen - Determination of the types of nitrogen

Le présent document décrit une méthode permettant de déterminer les teneurs en azote total, ammoniacal, uréique, nitrique et de synthèse organique, ainsi que la solubilité de l'azote de synthèse organique.

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