Grading of rss is done based on the grade descriptions and specifications defined in the the green book of international rubber quality and packing conferences as rss 1x rss1 rss2 rss3 rss4 and rss5 over 70 of the production of natural rubber is processed as ribbed smoked sheet.
Rubber smoked sheet.
There are many types of sheets rubbers namely ribbed smoked sheet rubber air dried sheet tuber and sun dried sheet rubber depending on the drying methodology used.
The different grades are determined by the percentage of particles in the rubber sheet.
It is usually packed in large bales of 111 11kg bale or 19 metric tons per 20 foot fcl.
Natural rubber latex is traditionally converted into sheet form through careful coagulation and subsequent milling process on two roll mills.
3 smoked sheet rss3 singapore commodity exchange 1st contract us dollars per kilogram price in us cents per kilogram.
Ribbed smoked is commonly used in different application made directly from pure latex which processed and further coagulate.
Among them ribbed smoked sheet rss has been the major form of raw rubber produced in sri lanka above 40.
Ribbed smoked sheet rss is marketed based on visual assessment of quality.
It can be graded into rss1 to rss5 with rss1 as top grade.