Standard ÖNORM M6288 1.10.1991 preview

ÖNORM M6288

Water quality - Determination of chromium(VI) - Spectrophotometric method using 1,5-diphenyl carbazide

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STANDARD published on 1.10.1991


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The information about the standard:

Designation standards: ÖNORM M6288
Publication date standards: 1.10.1991
SKU: NS-748427
The number of pages: 7
Approximate weight : 21 g (0.05 lbs)
Country: Austrian technische Norm
Category: Technical standards ÖNORM

The category - similar standards:

Examination of water for chemical substances

Annotation of standard text ÖNORM M6288 :

Diese ÖNORM beschreibt ein Verfahren zur Bestimmung von Chrom(VI) in natürlichen Wässern und Abwässern in Massenkonzentrationen von 0,05 mg/l bis 3 mg/l. Dabei muß alles Chrom(VI) gelöst vorliegen, was in der Regel der Fall ist. Chrom(VI) oxidiert 1,5-Diphenylcarbazid zu 1,5-Diphenylcarbazon, das mit Chrom einen rotviolett gefärbten Komplex bildet. Das spektrale Absorptionsmaß des Farbstoffes steht in linearer Beziehung zur Chrom(VI)-Konzentration und wird bei 550 nm gemessen.

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