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Materials
Natural
Rubber
Specialty
NR Grades
Synthetic
Rubber
Carbon
Black
Titanium
Dioxide
Zinc
Oxide
|
Standard Vietnamese Rubber
(SVR)
Specification Scheme
| |
|
|
|
|
|
| Parameter |
Unit
|
SVR
CV50
|
SVR
CV60
|
SVR
L
|
SVR
3L
|
SVR
5
|
SVR
10
|
SVR
20
|
|
Dirt (max)
|
% wt
|
0.03
|
0.03
|
0.02
|
0.03
|
0.05
|
0.08
|
0.16
|
|
Ash (max)
|
% wt
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.75
|
1.00
|
|
Nitrogen (max)
|
% wt
|
0.60
|
0.60
|
0.60
|
0.60
|
0.60
|
0.60
|
0.60
|
|
Volatile Matter
(max)
|
% wt
|
0.80
|
0.80
|
0.80
|
0.80
|
0.80
|
0.80
|
0.80
|
| Po |
|
NA
|
NA
|
35
|
35
|
30
|
30
|
30
|
| PRI |
|
60
|
60
|
60
|
60
|
60
|
50
|
40
|
Mooney
Viscosity
(1+4, 100°C) |
ML |
50
+/- 5
|
60
+/- 5
|
NA
|
NA
|
NA
|
NA
|
NA
|
Colour
Lovibond Scale
(individual values, max) |
|
NA
|
NA
|
4.0
|
6.0
|
NA
|
NA
|
NA
|
These figures
are limits, not typical values. Typical values will vary
by producer.
|
|
