Abstract: GB/T 4343.2 latest revision national recommended standard for electromagnetic compatibility immunity of household appliances has been implemented since July 1st, 2021, and the technical changed greatly. Based on the main contents and implementation date, combined with the technical changes and differences between the old and new versions, integrate and interpret the main technical changes of the new revised version from the standard scope, appliance classification, test items, etc. Provide guidance for the laboratory to update and implement standards, enterprise product testing and certification, and timely adjust product technology.

Key words: GB/T 4343.2; Immunity; Electromagnetic compatibility; Household appliances