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ISO 7766-1:1993

Photography — Processing wastes — Analysis of cyanides — Part 1: Determination of hexacyanoferrate(II) and hexacyanoferrate(III) by spectrometry
21. 1. 1993.
95.99   Povučen   19. 6. 2003.

Опште информације

95.99     19. 6. 2003.

ISO

ISO/TC 42

Međunarodni standard

37.040.30     13.030.30  

engleski  

Kupovina

Povučen

Jezik na kome želite da primite dokument.

Apstrakt

The principle of the test method specified is treating a sample of effluent, or diluted effluent, with a mixture of iron(II) and iron(III) ions. If Fe(CN)6 is present, a blue suspension will form. In the range of 1,0 mg/l to 10,0 mg/l, this suspension is stable and its absorbance is linear with its concentration. The absorbance is measured with a spectrometer, and the concentration determined from a previously established calibration.

Životni ciklus

TRENUTNO

POVUČEN
ISO 7766-1:1993
95.99 Povučen
19. 6. 2003.

REVIDIRAN OD

OBJAVLJEN
ISO 7766:2003