Natural Rubber (Raw Materials) of the standard for quality inspection
Reference People's Republic of China national standards standard rubber specification of raw natural rubber GB/T 8,081-1999 Eqv ISO 2000:1989 instead of GB/T 8081-1987
SCRCV SCR l SCR 5 levels standard rubber code SCR10 SCR20
Color green green brown red green yellow
Impurity contents m/m, maximum 0.05 0.05 0.10 0.20
Plastic initial value, minimum----30 30 30 30
Plastic retention, minimum 60 60 60 50 40 30
Nitrogen contents m/m, maximum 0.6 0.6 0.6 0.6 0.6 0.6
Volatile content m/m, maximum 0.8 0.8 0.8 0.8 0.8 0.8
Ash m/m, maximum 0.6 0.6 0.6 0.75 1
Color index, max--6--------
Mooney viscosity ML1+4 100oC (65+51)----------
Remarks: 1, common to impurities and plastic retention (PRI) is the main specification parameters.
AOK RUBBER MANUFACTURING LTD
July 21th,2011 |
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