In 5% nitric acid solution.

19 Elements : 50 mg/L Ag, Ni; 100 mg/L Al; 5 mg/L B, Fe 15 mg/L, Ba, Mn; 1 mg/L Be, Sr; 200 mg/L Bi, In, Pb; 20 mg/L Cd, Co, Cu, Zn; 25 mg/L Cr; 150 mg/L Ga; 40 mg/L Tl

Traceable to SRM from NIST, manufactured and tested in ISO Guide 34/ ISO17025 accredited facilities.

Supplied with certificate of analysis.