Total Solid Content Of Natural Rubber Latex
However accurate determination of the percentage dry rubber content drc and the percentage total solid content ts of natural rubber latex is important for the export certification of.
Total solid content of natural rubber latex. The dry rubber content of field latex is determined roughly by means of the hydrometer known as the metrolac which is an instantaneous method. These methods are not necessarily suitable for latex from natural sources other than the hevea brasiliensis for vulcanized latex for compounded latex or for artificial dispersions of. The suitability of using the microwave oven for the rapid determination of total solids content tsc of natural rubber latex has been established over a broad range of dry rubber content drc. This means that the attenuation due to water is large while that caused by dry rubber is small.
Therefore the higher the total solid content the lowerthe attenuation ofthe microwave power. This international standard specifies methods for the determination of the total solids content of natural rubber field and concentrated latices and synthetic rubber latex. The total solids content values obtained by the microwave oven method are compared with the values obtained by heating in a conventional convection oven. Total solid content and dry rubber content generally have a difference this value is called the total dry poor used to explain latex non volatile non rubber content.
Non rubber solids such as proteinous substances resionous substances carbohydrates. The total solid content refers to the content of all solid matter in the latex after removal of water and volatile components expressed as a percentage. These methods are not necessarily suitable for latex from natural sources other than the hevea brasiliensis for vulcanized latex for compounded latex or for artificial. Iso 124 2014 specifies methods for the determination of the total solids content of natural rubber field and concentrated latices and synthetic rubber latex.
1 1 this standard prescribes a method for determination of total solid content of natural rubber latex concentrates whi8ch contains preservative agent and which has been prepared by some type of concentration process and also for determination of total solids content of synthetic rubber lattices. To compute the carbon content of latex produced by a rubber tree the dry rubber content drc or total solid content tsc can be used as discussed in literature jayanthy sankaranarayanan. The suitability of using the microwave oven for the rapid determination of total solids content tsc of natural rubber latex has been established over a broad range of dry rubber content drc.