In this study, mixed clones of natural rubber field latex (MCFL) were prepared before further processing into mixed clones’ natural rubber latex concentrate (MCLC). The properties of MCLC were evaluated before compounds with CaCO 3 and other rubber chemicals. 1.2 There are two sets of analytical methods listed in this International Standard. In the body of the text (4.8.2 to 4.8.4), the traditional spectrophotometric methods are given; these are obsolescent, time-consuming and use a chlorinated solvent. It is recommended that these methods be phased out and replaced by the atomic absorption This document discusses optimizing the calcium carbonate (CaCO3) loading level in natural rubber latex-based disposable gloves. The study prepared disposable glove samples with CaCO3 loadings ranging from 20-45 phr at 5 phr intervals. Table 1 shows the formulation of NR latex films at different CaCO 3 loadings, and the films were prepared following the standard dipping process of NR latex gloves reported by other. In this study CaCO 3 filled Natural rubber latex disposable glove samples were successfully prepared by varying the CaCO 3 loading level from 20 phr to 45 phr at 5 phr intervals. In this study CaCO3 filled Natural rubber latex disposable glove samples were successfully prepared by varying the CaCO3 loading level from 20 phr to 45 phr at 5 phr intervals. International Standard ISO 5796 was prepared by Technical Committee ISO/TC 45, Rubber and rubber products, Subcommittee SC 3, Raw materials (including latex) for use in the rubber industry.