IMMATURE RUBBER
RUBBER TAPPING
Tapped and collected Cuplumps waiting to be transported to the Factory
INFORMATION
FACTS:
The six factories process natural rubber in three technically specified marketable grades:
SHEET RUBBER as Ribbed Smoke Sheets (RSS),
CRUMB RUBBER as CNR 10, 3CV (Constant Viscosity) and L (Light Coloured Rubber) .
The Central Rubber Laboratory is in charge of specifications concerning
Technically Specified Rubber, i.e. CNR 10, 3 CV and L grades, in accordance with the ISO 2000 and SMR norms.Tests carried out in the Central Rubber Laboratory include: Mooney viscosity, Initial Plasticity (Po), Plasticity Retention Index (PRI), Dirt content, Ash content, Volatile matter, Lovibond color. Accelerated Storage Hardening (ASHT) The lab analyses are done to evaluate both the Dry Rubber Content (DRC) and the quality of the rubber in general. This is to make sure the rubber being shipped meets the specifications and quality requested.
