Volatile matter 135 °C (275 °F), not more than 0.3 percent.
Salt content (as NaC1), not more than 0.3 percent.
Alcohol soluble matter, not more than 0.5 percent.
Organic chlorine, not more than 0.5 percent.
Aromatic amines, not more than 0.05 percent.
Lead (as Pb), not more than 40 parts per million.
Arsenic (as As), not more than 3 parts per million.
Mercury (as Hg), not more than 1 part per million.
Total color, not less than 98.5 percent.
21 C.F.R. §74.3045