Analisa Kadar Kotoran (Dirt Content) dan Kadar Abu (Ash Content) pada Karet Remah Sir 20 PT Bridgestone Sumatra Rubber Estate, Tbk Dolok Melangir – Serbelawan

Abstract

Lateks is a milky coloidal liquid from tree of rubber (havea brasiliensis) with the rubber particle dispersed of water. Latex contain protein (white of egg) which capable to pieces by bacteri actifity. Crumb rubber is one of special commodity ekspor Indonesia. It`s product made from natural rubber and produce by industrial crum rubber. Process productin of rum rubber SIR 20 using two kinds material, they are latex and material rubber low quality from populance. This material wuld be producted to many function as like medical instrument, glove, ballon, tire, with special producting. All sorts specification of grade like dirt content, ash content, and another specification, of grade detrmining quality rubber SIR 20. in order must be understand influent factor, over case method. Dirt content and ash content with low in the crumb rubber SIR 20 wonted determine of dirt content and ash content knowing with analize in the laboratory