This part of IEC 62552 specifies the essential characteristics of household refrigerating appliances cooled by internal natural convection or forced air circulation, and specifies test methods for checking the characteristics. Replace with: This part of IEC 62552 specifies the essential characteristics of household and similar refrigerating appliances cooled by internal natural convection or forced air circulation, and establishes test methods for checking these characteristics. Part 1 and Part mention Household refrigerating appliances in the scope while Part 3 mentions Household and similar refrigerating appliances . As the title of TC59 is household and similar , the scope has been made consistent with this.