含量 70-72%
色度 ≤10
乙醇不溶物 ≤0.001%
灼烧残渣 ≤0.003%
氯酸盐(ClO3) ≤0.001%
氯化物(Cl) ≤0.0001%
游离氯(Cl) ≤0.0005%
硫酸盐(SO4) ≤0.0005%
总氮量(N) ≤0.001%
磷酸盐(PO4) ≤0.0002%
硅酸盐(SiO3) ≤0.005%
钙(Ca) ≤300ppb 钠(Na) ≤300ppb
镉(Cd) ≤500ppb 镍(Ni) ≤100ppb
钴(Co) ≤100ppb 铅(Pb) ≤100ppb
铜(Cu) ≤100ppb 锡(Sn) ≤100ppb
铁(Fe) ≤300ppb 铬(Cr) ≤100ppb
钾(K) ≤300ppb 汞(Hg) ≤100ppb