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Norm

ÖNORM EN 26777

Issue date: 1993 05 01

Water quality - Determination of nitrite - Molecular absorption spectrometric method (ISO 6777:1984)

2.1 Range A nitrite nitrogen concentration, rho N, of up to 0.25 mg/l can be determined when using the maximum volume (40 ml) of test portion. 2.2 Limit of detectio...

Valid

§ Legal References

Publisher:

Austrian Standards International

Format:

Digital | 7 Pages

Language:

German | English | Download GER/ENG

Optionally co-design standards:

Committee 140: Water quality

ICS

13.060.50

Topics

Environment, Water quality, Examination of water for chemical substances

2.1 Range A nitrite nitrogen concentration, rho N, of up to 0.25 mg/l can be determined when using the maximum volume (40 ml) of test portion. 2.2 Limit of detection When using cells of optical path length 40 mm and a test portion of 40 ml, the limit of detection has been determined to lie within the range rho N = 0,001 to 0,002 mg/l. 2.3 Sensitivity Using a 40 ml test portion and a cell of optical path length 40 mm, rho N = 0,062 mg/l gives an absorbance of about 0,66 units. Using a 40 ml test portion and a cell of optical path length 10 mm, rho N = 0,25 mg/l gives an absorbance of about 0,67 units.

ÖNORM EN 26777

1993 05 01

Water quality - Determination of nitrite - Molecular absorption spectrometric method (ISO 6777:1984)...

Norm

↖

ÖNORM M 6282

1987 11 01

Water analysis; determination of nitrite; 4-aminobenzene sulfonamide N-(1-naphthyl)-1,2-diaminoethan...

Norm

ISO 6777:1984

Issue date : 1984 07 01

Water quality — Determination of nitrite — Molecular absorption spectrometric method