Targets of chemical - SVR 3l management of rubber by TCVN 3769:2004. 1. Concentrations of contaminants retained on the 45m sieve,% m / m, not more than: 0.03 2. Ash,% m / m, not more than: 0.50 3. Nitrogen content,% m / m, not more than: .60 4. Volatiles content,% m / m, not more than: 0.80 5. Early plasticity (Po), not less than: 35 6. Maintain the viscosity index (PRI), not less than: 60 7. Lovibond color index, the form, not more than: 6 8. Mooney viscosity ML (1 '+ 4') 1000C. 33, 33kg/loose bale/ load on 20'DC container/20mts.