IEC 60705:2024

Household microwave ovens - Methods for measuring performance

IEC 60705:2024 applies to microwave ovens for household and similar use, it also applies to microwave ovens with grills and combination microwave ovens.
This document defines the main performance characteristics of these appliances, which are of interest to the user, and it specifies methods for measuring these characteristics.
The manufacturer defines the primary cooking function of the appliance, microwave function or thermal heat. The primary cooking function will be measured with an existing method according to energy consumption.
If the primary cooking function is declared as a microwave function, IEC 60705 will be applied for energy consumption measurement. If the primary cooking function is declared as a thermal heat, IEC 60350-1 will be applied for energy consumption measurement. If the manufacturer does not declare the primary function, the performance of the microwave function and thermal heat is measured as far as it is possible.
There is currently no measurement method for the energy consumption for grilling and steam functions.
This document does not deal with safety requirements (see IEC 60335-2-25 [1] ).
This document does not apply to appliances incorporating thermal heat, steam function or hot steam function only. These appliances are covered by IEC 60350-1.
This fifth edition cancels and replaces the fourth edition published in 2010, Amendment 1: 2014 and Amendment 2: 2018. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) thematically ordered new sequence of the clauses;
b) updated normative references;
c) introduced a new definition for microwave generator to open the standard for microwave ovens with one or more magnetrons or solid-state components;
d) aligned with IEC 60350-1:2023 regarding the definitions and references;
e) aligned preparation of water load for Clause 8 and Clause 10;
f) removed the definitions for set to off mode and set to standby mode ;
g) added new definitions regarding low power modes;
h) aligned the low power mode measurement, Clause 11, to IEC 60350-1:2023;
i) revised square tank tests to one new 12.2;
j) revised the dishes used for Clause 12, Clause 13 and Clause 14 and removal of Annex B;
k) removed A.3.3;
l) removed Annex F for measuring the energy consumption of the cooling down period;
m) former Annex E will be substituted by a supporting document located on the IEC's website.

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