![]() |
Phone:+86 312 3165898 Fax:+86 312 3375808 |
![]() |
Address:4-E-428, Power Science Valley, No. 3088 Leikai North Street, Baoding, China |
3, the product also has a certain role in shielding ultraviolet radiation, can play an anti-aging role in the coating.
Item
|
Index
|
||
Product model
|
Grade A
|
Grade B
|
Grade C
|
Zinc oxide %≥
|
99.7
|
99.5
|
99.4
|
Metal objects %≤
|
nothing
|
nothing
|
nothing
|
Lead %≤
|
0.037
|
0.1
|
0.14
|
Sieve residue(45umMesh)%≤
|
0.10
|
0.15
|
0.20
|
105℃Volatile matter%≤
|
0.3
|
0.4
|
0.5
|
Water soluble substance%≤
|
0.10
|
0.10
|
0.15
|
Oil absorptiong/mg
|
14
|
14
|
14
|
Color (compared with standard sample)
|
Approximate
|
Yellow
|
Yellow
|
Reducing power (compared with standard sample)≥
|
100
|
95
|
90
|
|