质量指标

Specification

QB2554-2002

BP-2004

FCC-1996

含量           ≥%

Content

97.0

99.0-100.5

99.0

酸度或碱度试验

PH Value

Normal

According With

The Standard

Normal

砷（以As计）≤%

Arsenic(As As)

0.0005

—

0.0003

重金属（以Pb计）    ≤%

Heavy Metals

(As Pb)

0.0001

0.0001

0.0005

碘化物或溴化物试验

The Test Of

Iodide or Bromide

—

According With

The Standard

Normal

干燥减重      ≤%

Loss

On Drying

1

1.0

1.0

钠实验

Sodium

Experiment

Negative

—

Negative

硫酸盐        ≤%

Sulphate

—

0.03

—

铅            ≤%

Lead

—

0.0001

—

钠盐          ≤%

Sodium Base

1.45 (NaCl)

0.1

—

钡盐

Barium

—

According With

The Standard

—

铁盐          ≤%

Iron

—

0.002

—

镁盐与碱土金属      ≤%

Magnesium

And Alkaline- Earth Metal

—

0.02

—

外来水溶物    ≤%

Foreign Matter Soluble In Water

0.5

—

—

水不溶物      ≤%

Water Insolubles

0.05

—

—