10 ppm: Ag, Al, As, Ba, Be, Bi, Ca, Cd, Co, Cr, Cs, Cu, Fe, Ga, In, K, Li, Mg, Mn, Na, Ni, Pb, Rb, Se, Sr, Tl, U, V, Zn Matrix: 5% HNO3 Min: >= 9.95 Max: = Manufactured and Tested in an ISO 17025/Guide 34 Accredited Facilit