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Natural SMR 20 rubber

Mean test results of Lot No.
Property 2118 2119 2120 2121 SMR 20 Limit
Dirt                                                                                                                                             (retained on 44  μ apertture), (%wt) 0.050 0.052 0.049 0.053 0.16
Ash, (wt) 0.39 0.38 0.41 0.39 1.00
Volatile Matter, (%wt) 0.42 0.44 0.46 0.39 0.80
Nitrigen,(%wt) 0.37 0.37 0.39 0.36 0.6
Initial Wallace Plasticity (po) range    average  35 36 36 35 po ≥ 30
Max-Min 37-34 37-34 37-36 37-36
PRI (P30 / Po) × 100% 70 69 70 68 ≥40

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