GRADE

Tech. Grade

Feed Grade

Food Grade

Pharma. Grade

ITEM

HG/2029-91

Yotech Standard

FCC-IV/GMP

USP-25/GMP

Purity

98.5%

99.0%

99.0%

99.5%

Loss on Drying

0.5%

0.2%

0.2%

0.2%

Heavy Metal

0.003%

0.002%

0.002%

0.001%

Chloride

0.5%

0.4%

0.007%

0.007%

Residue on Ignition

0.1%

0.1%

0.1%

0.1%

Sulfate

0.01%

0.007%

0.0065%

0.0050%

Hydrolysate

/

/

eligible

eligible

Organism mixs

with vapor

/

eligible

eligible

eligible

Fe

0.003%

0.003%

0.002%

0.001%

Ammonium Salt

0.02%

0.02％

0.01%

0.01%

As

0.0005%

0.0003%

0.0002%

0.0001%

Pb

0.0005%

0.0005%

0.0002%

0.0001%

Hotless source

examination

/

/

/

hotlsee source

Endotoxin

/

/

eligible

eligible

Easy carburet

/

/

eligible

eligible

PH(5%)

5.5-6.5

5.5-6.5

5.8-6.5

5.8-6.8

Middle Control Item

White degree

80%

85％

85%

≥90%

Permeation rate

90%

95％

98%

≥98%

Particle size

(micron)

20~100(90%以上)

20~80(90%以上)

30~120(90%以上)

30~120(90%以上)

Store period

One year

Three years

(add anti-knot)

Three years

Three years

Provide reference

Produce technics

Recrystallization craft

Totally enclosed production line

Totally enclosed production line

Packing

25kg two-story plastic bag

25kg four-story paper bag

25kg four-story paper- plastic bag

25kg five-story paper- plastic bag