- TCVN 9920:2013: Determination of Au by MIBK extraction method (LOD): 0.1mg/kg
- TCVN 9921:2013: Determination of Au, Pt, Pd content atomic absorption spectrometry method (LOD): 0.01mg/kg
- TCVN 9922:2013: Determination of As Atomic absorption spectrometry method (LOD): 10 mg/kg
- TCVN 9926:2013: Determination of Cu, Pb, Zn, Cd, Bi, Ag, Co, Ni, Mn content Atomic absorption spectrometry method (LOD): 10 mg/kg
- TCVN 9928:2013: Determination of Sb Atomic absorption spectrometry method (LOD): 10 mg/kg