This standard specifies the determination methods for cadmium, chromium, lead and mercury in corrugated cardboard. This standard is applicable to the detection of cadmium, chromium, lead and mercury content in various paper, cardboard and pulp that can be digested by nitric acid wet digestion.
SN/T 1634-2005 history
2005SN/T 1634-2005 Determination of cadmium, chromium,lead and mercury in corrugated boards