Type VI-A, essentially salt-free, lyophilized powder, 950-2000 units/mg solid (using ABTS), ≥250 units/mg solid (using pyrogallol)

Type I, essentially salt-free, lyophilized powder, 50-150 units/mg solid (using pyrogallol)

Type II, essentially salt-free, lyophilized powder, 150-250 units/mg solid (using pyrogallol)

Type VI, essentially salt-free, lyophilized powder, ≥250 units/mg solid (using pyrogallol)

Type XII, essentially salt-free, lyophilized powder, ≥250 units/mg solid (using pyrogallol)

lyophilized powder, ≥300 units/mg protein

powder, slightly beige, >0.1 U/mg

Type V, ammonium sulfate suspension, 500,000-1,000,000 units/mg protein