[en] The sterilization dose setting by ISO 11137 method 1 was conducted for natural rubber examination gloves provided by a local factory. The suitable sterilization dose for an average product bioburden falls between 20 - 25 kilogray. Maximum dose of 25 or 50 kilogray results in no changes of tensile s and elongation at break. Samples of examination glove were irradiated using various doses between 10 - 50 kilogray. Analysis of soluble protein content using modified Lowry method was carried out and the results revealed that irradiation did not affect the decrement of soluble protein content in this case. However, thin film samples were prepared in laboratory and treated in the same procedure. The results were also the same. The results did not show any correlation. Two factors are possibly presumed : un consistency of samples and the irradiation of finished products could not affect those soluble proteins in rubber gloves

[en] A study has been carried out to investigate the effect of addition of fumed silica and hydroxy apatite into RV NR latex for the purpose of improvement of tear property of the films. Determination of water soluble protein in rubber films was also done using modified Lowry method to quantify the protein immobilization by the additives. Binding of the protein to the additives was found to enhance by addition of ZnO. Stability of the RV NR latex with fumed silica and hydroxy apatite was also evaluated. (author)