Standard Test Methods for Total Kjeldahl Nitrogen in Water

Importancia y uso:

4.1 These test methods are useful for measuring organic nitrogen and ammoniacal nitrogen, which are essential growth nutrients.

4.2 Nitrogen compounds are widely distributed in the environment. Sources of nitrogen include surface-applied fertilizers, cleaning products, and drinking water treatment aids. Because nitrogen is a nutrient for photosynthetic organisms, it may be important to monitor and control discharge into the environment.

Subcomité:

D19.05

Referida por:

D6146-97R18, D8083-24, D5338-15R21, D3694-96R24, D5975-17, D5511-18, D6696-16R23, D7294-13R21, D7475-20

Volúmen:

11.02

Número ICS:

13.060.50 (Examination of water for chemical substances)

Palabras clave:

analysis; colorimetric; distillation; TKN; water;