Certified values
As............................. 3.93 mg/kg
Cl ..............................92.9 mg/kg
Pb ............................ 13.8 mg/kg
Br ................................ 98 mg/kg
Cr..............................17.7 mg/kg
................................. 78 mg/kg
Cd ............................ 21.7 mg/kg
Hg.............................4.50 mg/kg