This standard specifies methods for the determination of volatile matter content in raw rubber, including the "hot mill method" and the "oven method." It is primarily applicable to unsaturated carbon-chain rubbers such as natural rubber and certain synthetic rubbers. In cases of dispute between results obtained from the two methods, the standard explicitly designates Procedure A of the oven method as the arbitration basis. The hot mill method requires the use of a dedicated open mill (i.e., hot rollers) to press the sample into thin sheets at a specific temperature before weighing, while the oven method involves heating the sample in a forced-air drying oven. Regardless of the method used, the core detection instrument includes an analytical balance for precise weighing. The standard also specifically notes that the hot mill method is not suitable for natural rubber or rubber in powder or scrap form.