This standard specifies the method principle, reagents, analysis steps and calculation of analysis results using the barium sulfate gravimetric method to determine the sulfuric acid content in electroplating chromium solutions. This standard is applicable to the determination of sulfuric acid content in chromium electroplating solutions. Measuring range: 1~5g/L.
HB/Z 5091.3-1999 history
1999HB/Z 5091.1-1999 Analysis method for chrome plating solution Determination of chromium trioxide content through potentiometric titration
1979HB/Z 5091-1978 Analytical method of chrome plating solution