Item

Technical Requirement/ Index

Item (full shade)

Index

Cr₂O₃ %

≥99

∆ a

-0.6～0.6

Cr 6+(VI) %

≤0.001

∆ b

-0.6～0.6

soluble matter in water %

≤0.3

∆ L

-0.5～0.5

Oil Absorption%

15-25

∆ E

1.0

Water content %

≤0.15

PH Value

5-8

Residue on 325 mesh %

≤0.2

Tint

As Standard

Coloring Strength

As Standard

Item

TechnicalRequirement/ Index

Cr₂O₃%≥

98.5

soluble matter in water %≤

0.3

CR6+ %≤

0.0005

Oil Absorption%

15-25

Water content %≤

0.15

PH Value

6-8

Residue on 325 mesh %≤

0.20

Tint

As Standard

Coloring Strength

As Standard