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Rubber
Materials
Natural
Rubber
Specialty
NR Grades
Synthetic
Rubber
Carbon
Black
Titanium Dioxide
Zinc
Oxide
|
Standard Indonesian Rubber
(SIR)
Specification Scheme
| |
|
|
|
|
|
| Parameter |
Unit
|
SIR
3CV50
|
SIR
3CV60
|
SIR
3L
|
SIR
3WF
|
SIR
5
|
SIR
10
|
SIR
10VK
|
SIR
20
|
SIR
20VK
|
|
Dirt (max)
|
% wt
|
0.03
|
0.03
|
0.03
|
0.03
|
0.05
|
0.10
|
0.10
|
0.20
|
0.20
|
|
Ash (max)
|
% wt
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.75
|
0.75
|
1.00
|
1.00
|
|
Nitrogen (max)
|
% wt
|
0.60
|
0.60
|
0.60
|
0.60
|
0.60
|
0.60
|
0.60
|
0.60
|
0.60
|
|
Volatile Matter
(max)
|
% wt
|
0.60
|
0.60
|
0.80
|
0.80
|
0.80
|
0.80
|
0.80
|
0.80
|
0.80
|
| Initial
Plasticity (min) |
|
30
|
30
|
30
|
30
|
30
|
30
|
30
|
30
|
30
|
| PRI index
(min) |
|
60
|
60
|
75
|
75
|
70
|
60
|
60
|
50
|
50
|
Colour
Lovibond Scale
(individual value, max) |
|
NA
|
NA
|
6.0
|
NA
|
NA
|
NA
|
NA
|
NA
|
NA
|
Mooney
Viscosity
(ML, 1+4, 100°C) |
|
50
+/- 5
|
60
+/- 5
|
NA
|
NA
|
NA
|
NA
|
60
+/- 5*
|
NA
|
60
+/- 5*
|
*Not specification
status, but are controlled at the producer end.
These figures
are limits, not typical values. Typical values will vary
by producer.
|
|
