Table 4 summarized the results of odor compound from raw rubber and also treated rubber as identified by GCMS according to the retention time. There were 18 odor compounds detected by GCMS analysis. From the observation, compound 3-cyclohexene-1-methanol, α, α, 4-trimethyl-, (S) was found in all treated rubber at retention time of 10.37 minutes. Fewer compounds were detected when treated with Sodium hypochlorite as the concentration increased from 0.5% to 3.0%. There were two compounds detected for 0.5% which were 7H