HNO₃ F.W.: 63.01 NFPA#: 3-0-3 Specific Gravity: 1.408 DOT: 8/5.1/II Descriptions: Trace metal grade. Low ppb metal impurities. Note:Results reported at time of bottling in glass. Thelevels of Al, B, Ca, K, Mg, Mn, Na, and Si will increase over time.