2004HB/Z 5095.1-2004 Methods for analysis of cyaniding plating brass solutions-part 1:Continual determination of copper (Ⅱ)cyanate and zinc oxide content by EDTA volumetric method
HB/Z 5095.2-2004 Methods for analysis of cyaniding plating brass solutions-part 2:Determination of free sodium cyanate content by potentiometric titrimetric method has been changed from HB/Z 5095-1978 .