质量指标

Specification

FCC, 1997

含量               ≥%

Content

96.0

砷                 ≤%

Arsenic (as As) 

0.0003

氟化物             ≤%

Fluorides

0.001

重金属(以Pb计)     ≤%

Heavy Metals (as Pb)

0.0015

铅                 ≤%

Pb  

0.0002

灼烧失重            ≤%

Loss on Ignition

29-36