This document specifies the classification and nomenclature, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of methylphenyl vinyl silicone rubber. This document applies to methyl vinyl siloxane units (-Me2SiO-), diphenylsiloxane units (-Ph2SiO-) and a small amount of methylvinylsiloxane units (-MeViSiO-). phenyl vinyl silicone rubber.