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Standard Indonesian Rubber
(SIR) Mandatory From January 1st, 1989 |
| Quality Grade | SIR 3 CV |
SIR 3 L |
SIR 3 WF |
SIR 5 |
SIR 10 |
SIR 20 |
Test Method |
| Raw Material | Latex |
Latex |
Latex |
Latex |
Latex |
Latex |
Latex |
| Dirt Content % | 0.03 |
0.03 |
0.03 |
0.05 |
0.1 |
0.2 |
ISO 249 |
| Ash Content | 0.5 |
0.5 |
0.5 |
0.5 |
0.75 |
1 |
ISO 247 |
| Volatile Matter % | 0.8 |
0.8 |
0.8 |
0.8 |
0.8 |
0.8 |
ISO 244 |
| Nitrogen Content % | 0.6 |
0.6 |
0.6 |
0.6 |
0.6 |
0.6 |
ISO 1656 |
| Initial Wallace Plasticity (Po) | 30 |
30 |
30 |
30 |
30 |
30 |
ISO 2007 |
| Plasticity Retention Index (PRI) | 60 |
75 |
75 |
70 |
60 |
50 |
ISO 2930 |
| Colour Index Lovibond Scale | - |
6 |
- |
- |
- |
- |
ISO 4660 |
Natural Rubber Processing Production Line
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