No.
|
Item
|
Index
|
Test method
|
1
|
Appearance
|
White powder
|
By visual
|
2
|
Whiteness
|
≥70
|
GB2913-82
|
3
|
Composition % by Wt
|
Vinyl Chloride 88±1%
|
GB/T7139-2002
|
Vinyl Acetate 1±1%
|
ISO1159-1978
|
||
Vinyl Alcohol 11±0.5%
|
|
||
4
|
Reactive Functionality (Hydroxyl %)
|
3.8-4.2%
|
|
5
|
K Value
|
40-42
|
GB/T 3401-2007
|
6
|
Viscosity No. ml/g
|
40-44
|
GB/T 3401-2007
|
7
|
Glass transition Temp ℃
|
About 78
|
GB11998-89
|
8
|
Average Molecular Wt
|
About 27000
|
Calculated by the Viscosity No.
|
9
|
% by wt, through 60 mesh
|
100%
|
GB/T6003.1
|
10
|
Apparent density (g/ml)
|
≥0.5
|
GB20022-2005
|
11
|
Volatilization (%)
|
≤1%
|
GB/T2914-1999
|
12
|
Impurity Particle No. /100g
|
≤20
|
GB9348-88
|
13
|
20% resin in EA or MEK
|
Colorless and Transparent or Yellowish
|
By visual
|