TSR 20 Natural Rubber Comparison Chart

Parameter Unit SIR 10 SIR 10VK SMR 10 SMR 10CV STR 10 SVR 10CV SVR 10
Dirt (max) % wt 0.20 0.20 0.16 0.16 0.16 0.16 0.16
Ash (max) % wt 1.00 1.00 1.00 1.00 0.80 0.80 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 (min)   30 30 30 NA 30 NA 30
PRI index (min)   50 50 40 40 40 40 40
Mooney Viscosity* (ML, 1+4, 100°C)   NA 60 +/- 5* NA 60 +7, -5* NA 60 +7, -5* NA

*Not specification status, but are controlled at the producer end.