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download between 0-24 hoursReleased: 1988
ISO 7890-3:1988
ISO 7890-3:1988-Water quality — Determination of nitrate-Part 3: Spectrometric method using sulfosalicylic acid
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| Standard´s number: | ISO 7890-3:1988 |
| Pages: | 4 |
| Edition: | 1 |
| Released: | 1988 |
DESCRIPTION
ISO 7890-3:1988
Procedure given is applicable to raw and potable water. The range covers a nitrat nitrogen concentration up to 0,2 mg/l using the maximum test portion of 25 ml. Using cells of path length 40 mm and a 25 ml test portion the limit of detection lies within the range 0,003 to 0,013 mg/l.