GB/T14796-2023 Specifies the determination of the Color Index of natural raw rubber. This standard clearly applies to all kinds of natural raw rubber, explains the determination principle in detail, and stipulates the equipment, sample preparation, operation steps, and result calculation and representation. According to this standard, the Color Index of natural raw rubber can be accurately determined, providing a key basis for the mass classification of natural raw rubber and the selection of raw materials in Rubber production, helping the rubber industry to control the mass of products and promote the orderly development of the natural raw rubber market.