Standard

ISO 7766-1:1993

Jan 1993 Withdrawn

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Abstract

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.

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Standard from ISO
Published: January 21 1993
Withdrawn: June 19 2003
Period for objection until: January 18 1991
Edition: 1
Document type: IS
Pages
ISBN:

Publisher: ISO
Distributor: ISO
ICS: 13.030.30
ICS: 37.040.30
International TC: ISO/TC 42

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Revised by: ISO 7766:2003

ISO 7766-1:1993

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Abstract

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