HJ 490-2009
Water quality.Determination of silver.Spectrophotometry with cation 2B (English Version)

Standard No.

HJ 490-2009

Language

Chinese, Available in English version

Release Date

2009

Published By

Professional Standard - Environmental Protection

Latest

HJ 490-2009

Replace

GB/T 11908-1989

Scope

This standard specifies the cadmium reagent 2B spectrophotometric method for the determination of silver in water and wastewater. This standard is applicable to the determination of silver in silver-contaminated surface water and industrial wastewater from photosensitive material production, film development, silver plating, smelting and other industries. When the sample volume is 25ml and a cuvette with an optical path of 10mm is used, the detection limit of this method is 0.01mg/L, the lower limit of determination is 0.04mg/L, and the upper limit of determination is 0.8mg/L.

HJ 490-2009 history

• 2009 HJ 490-2009 Water quality.Determination of silver.Spectrophotometry with cation 2B

HJ 490-2009 Water quality.Determination of silver.Spectrophotometry with cation 2B has been changed from GB/T 11908-1989 Water quality--Determination of silver--Spectrophotometry with cadion 2B.