ISO 9390:1990 PDF

ISO 9390:1990 PDF

Name:
ISO 9390:1990 PDF

Published Date:
09/01/1990

Status:
Active

Description:

Water quality - Determination of borate - Spectrometric method using azomethine-H

Publisher:
International Organization for Standardization

Document status:
Active

Format:
Electronic (PDF)

Delivery time:
10 minutes

Delivery time (for Russian version):
200 business days

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Choose Document Language:
$16.2
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This international Standard specifies a spectrometric method for the determination of borate in water. The method is applicable to the determination of borate in concentrations between 0,Ol mg and 1 mg of boron per litre. The working range may be extended by dilution.

This method is applicable to potable water, and to ground, surface and saline waters that are not heavily polluted.

Interferences are unlikely when analysing drinking water. Mg, Zn, Ca, Na, K, phosphate, sulfate, and nitrate are known not to interfere. Mn, Zr, Cr, Ti, Cu, V, Al, Be, and Fe may cause high results.

Interference by the presence of colouration, humic acid, and/or undissolved substances may be removed by suitable procedures (e.g. destruction of the colour, filtration through a column filled with activated carbon).


File Size : 1 file , 390 KB
Note : This product is unavailable in Ukraine, Russia, Belarus
Number of Pages : 4
Published : 09/01/1990
Same As : ISO 9390:1990

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