This standard specifies the terms and definitions of household standby silent gas generator sets, product models, types, working modes and basic parameters, basic requirements, technical requirements, test methods, inspection rules, markings, packaging, storage and transportation, and quality commitments. This standard applies to single-phase household backup silent gas generator sets with rated power of 10 kW and below (hereinafter referred to as "standby units"). The gas in this standard is any one or both of liquefied petroleum gas and natural gas.