GB/T 20290-2024 Electric dishwashers for household use - Methods for measuring the performance
1 Scope
This standard defines the principal performance characteristics of electric dishwashers for household and similar use and describes the standard methods of measuring these characteristics.
This standard applies to electric dishwashers for household and similar use that are supplied with hot and/or cold water.
This standard is concerned neither with safety nor with minimum performance requirements.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB 38383-2019 The minimum allowable values of the energy，water consumption and grades for dishwashers
ISO 607 Surface active agents and detergents-Methods of sample division
Note: GB/T 6372-2006 Surface active agents and detergents - Methods of sample division (ISO 607:1977, IDT)
ISO 80000-1:2022 Quantities and Units - Part 1 : General
IEC 60704-2-3 Household and similar electrical appliances - Test code for the determination of airborne acoustical noise - Part 2-3 : Particular requirements for dishwashers
Note: GB/T 4214.3-2023 Test method for noise of household and similar electrical appliances - Particular requirements for dishwashers (IEC 60704-2-3:2017, MOD)
IEC 60705 Household microwave ovens - Methods for measuring performance
Note: GB/T 18800-2017 Household microwave oven - Methods for measuring performance (IEC 60705:2014, IDT)
IEC 60734 Household electrical appliances - Performance - Water for testing
Note: GB/T 23119-2017 Household and similar electrical appliances - Water for performance testing (IEC 60734:2012, IDT)
IEC 62301 Household electrical appliances - Measurement of standby power
Note: GB/T 35758-2017 Household electrical appliances - Measurement of standby power (IEC 62301:2011, IDT)
3 Terms, definitions and symbols
3.1 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1.1
dishwasher
machine that cleans, rinses and dries tableware by chemical, mechanical, thermal, and electric means
Note 1: A dishwasher may have a specific drying operation at the end of the programme.
Note 2: Different dishwasher types are designated by manufacturers e.g. free-standing, built-in or integrated.
3.1.2
free-standing dishwasher
dishwasher which is intended to be installed without an enclosing structure
3.1.3
built-in dishwasher
dishwasher which is intended to be installed inside an enclosing structure such as a kitchen cupboard
Note: built-in dishwasher includes sink dishwasher
3.1.4
integrated dishwasher
built-in dishwasher which is designed to have a board fitted to the dishwasher door
3.1.5
test machine
dishwasher used for tests concerned in this standard
3.1.6
reference machine
dishwasher used to standardize cleaning and drying performance measurements
Note: A reference machine is specified for use in this standard (see Annex I).
3.1.7
test run
single cycle performance assessment
3.1.8
test series
set of test runs which are collectively used to assess the performance
3.1.9
tableware
dishware, glassware, cutlery and serving pieces used according to this standard to test a dishwasher
3.1.10
place setting
set of tableware for the use by one person
Note 1: Not including serving pieces.
Note 2: A place setting is comprised of different items used for breakfast and lunch (type A); and dessert and dinner (type B).
3.1.11
serving pieces
set of items for preparation and serving of food
Note: Including pots, serving bowls, serving cutlery and a platter
3.1.12
Chinese standard tableware
tableware meeting the requirements of GB 38383-2019
Note: referred to as Chinese tableware
3.1.13
rated dishwasher capacity
whole number of place settings together with the serving pieces which can be cleaned and dried in one cycle when loaded in accordance with the manufacturer’s instructions
Note: The rated dishwasher capacity is declared by the manufacturer and expressed as a number of place settings.
3.1.14
operation
each event that occurs during the dishwasher programme
Note: Including cleaning, rinsing or drying.
3.1.15
programme
series of operations which are pre-defined within the dishwasher and which are declared as suitable for specified levels of soil and/or type of load
Note: Usually, an end of programme indicator signals the end of the programme and the user has access to the load.
3.1.16
cycle
complete cleaning, rinsing, and drying process, as defined by the programme selected, consisting of a series of operations until all activity ceases
Note: The cycle may be equal to or last longer than the programme.
3.1.17
cycle time
length of time beginning with the initiation of the cycle (of the selected programme), excluding any user programmed delay, until all activity ceases
3.1.18
programme time
length of time beginning with the initiation of the programme, excluding any user-programmed delay, until an end of programme indicator is activated and the user has access to the load
Note: If there is no end of programme indicator, the programme time is equal to the cycle time.
3.1.19
automatic dispenser
device activated automatically which injects or dispenses detergent or rinse aid, one or more times into the dishwasher at predetermined points in the dishwasher cycle
3.1.20
non-automatic dispenser
device, usually a fixed cup or cavity on the dishwasher door, cover, or rack, which deposits a previously measured amount of detergent or rinse aid, into the dishwasher
3.1.21
water softener
device which reduces the hardness of water
3.1.22
regeneration
process by which softening capacity is restored to a water softener
3.1.23
rack
support for holding dishware, cutlery, and/or glassware in the dishwasher
3.1.24
detergent
cleaning agent for use in dishwashers to aid in the removal of food soils by chemical means
Note: A reference detergent in powder form is specified for use in this standard (see 5.7).
