This standard specifies the structure, specifications, requirements, test methods, inspection rules, signs, packaging, transportation and storage of rubber sealing rings for daily pressure cookers (hereinafter referred to as sealing rings). This standard is applicable to daily-use stainless steel pressure cookers and rubber seal rings of aluminum and aluminum alloy pressure cookers with a nominal working pressure of 50kPa~120kPa and a volume of no more than 18L.