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	po ≥ 30
PRI (P30 / Po) × 100%	70	69	70	68	≥40

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