4.110042Nitric acid for trace metal analysis (ppt)HNO3 M.=63.01CAS No. 7697-37-2UN 2031 Guarantee analysisMinimum assay (HNO3) 65%Maximum limit of impuritiesMetals by ICP (ppt)Al 20Gd 1 Ni 20 Te 1Sb 10 Ga 10 Nb 1 Tb 1As 20 Ge 10 Pd 20 Tl 10Ba 10 Au 20 Pt 20 Th 1Be 10 Hf 10 K 10 Tm 1Bi 10 Ho 1 Pr 1 Sn 20B 10 In 1 Re 10 Ti 10Cd 10 Fe 10 Rh 10 W 10Ca 10 La 1 Rb 10 U 1Ce 10 Pb 10 Ru 20 V 10Cs 10 Li 10 Sm 1 Yb 1Cr 10 Lu 1 Sc 10 Y 1Co 10 Mg 10 Se Information only Zn 10Cu 10 Mn10Ag 10 Zr 10Dy 1 Hg 50 Na 10Er 1 Mo 10 Sr 10Eu 1 Nd 1 Ta Information only