ICP Multi-element (12) Standard, in 2% HNO3+tr HF (supplied Part 1 & 2 @100ml ea) elements Part 1: Zn 1mg/L, Fe 2.5 mg/L, Mg 10mg/L, P 25mg/L, Ca 50mg/L, K 50mg/L, Na 25mg/L elements Part 2: Se 20µg/L, Cr 40µg/L, Mo 40µg/L, Cu 250µg/L, Mn 250µg/L