1000 ppm Ca, Fe, K, Mg, Na; 10 ppm Ag, Al, As, Ba, Be, Cd, Co, Cr, Cu, Mn, Mo, Ni, Pb, Sb, Se, Th, Tl, V, Zn, U Matrix: 10% HNO3 /tr.HF Min: >= 9.95 Max: = Manufactured and Tested in an ISO 17025/Guide 34 Accredited Facilit