QB/T 1520-2023 English PDF (QBT1520-2023)

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QB/T 1520-2023: Household and similar electrical dishwasher
QB/T 1520-2023
QB
LIGHT INDUSTRY STANDARD OF
THE PEOPLE’S REPUBLIC OF CHINA
ICS 97.040.40
CCS Y 62
Replacing QB/T 1520-2013
Household and similar electrical dishwasher
ISSUED ON: JULY 28, 2023
IMPLEMENTED ON: FEBRUARY 01, 2024
Issued by: Ministry of Industry and Information Technology of the PRC
Table of Contents
Foreword ... 3
1 Scope ... 6
2 Normative references ... 6
3 Terms and definitions ... 7
4 Classification and model naming ... 10
5 Requirements ... 10
6 Test method ... 14
7 Inspection rules ... 25
8 Marking, packaging, transportation, storage ... 28
Appendix A (Informative) Product classification and model naming ... 30
Appendix B (Normative) Classification and grading of main performance indicators
... 32
Appendix C (Informative) Methods for preparing and coating Chinese pollutants ... 33
Appendix D (Normative) Test method for short-time washing performance of
dishwashers ... 36
Appendix E (Normative) Tooling for noise test of sink-type dishwasher ... 38
Appendix F (Informative) Test method of dishwasher clean and dry-keeping performance
... 41
Appendix G (Informative) Test method for pesticide residue removal rate ... 52
References ... 55
Household and similar electrical dishwasher
1 Scope
This document specifies the safety, use performance, structure, materials and other
requirements for household and similar electrical dishwashers; describes the
corresponding test methods; specifies the inspection rules, marking, packaging,
transportation, storage content; gives the classification and model naming for the
convenience of technical specifications.
This document applies to the production, inspection, sale of household and similar
electrical dishwashers with a single-phase rated voltage not exceeding 250 V and other
appliances with a rated voltage not exceeding 480 V.
This document does not apply to the production, inspection, sale of dishwashers
designed specifically for commercial use.
2 Normative references
The contents of the following documents constitute essential clauses of this document
through normative references in the text. Among them, for dated references, only the
version corresponding to that date applies to this document; for undated references, the
latest version (including all amendments) applies to this document.
GB/T 1019 General requirements for the package of household and similar electrical
appliances
GB/T 1354-2018 Milled rice
GB/T 2423.17 Environmental testing for electric and electronic products - Part 2:
Test method - Test Ka: Salt mist
GB/T 2828.1 Sampling procedures for inspection by attributes - Part 1: Sampling
schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection
GB/T 2829 Sampling procedures and tables for periodic inspection by attributes
(apply to inspection of process stability)
GB/T 4214.3 Household and similar electrical appliances - Test code for
determination of airborne acoustical noise - Particular requirements for dishwashers
GB 4706.1 Household and similar electrical appliances - Safety - Part 1: General
requirements
c) Inlet water temperature: Not more than 60 °C;
d) Inlet water pressure: 0.05 MPa ~ 1.0 MPa.
5.2 General requirements
Unless otherwise specified, the dishwasher shall be powered by a single-phase AC
power supply, which has a voltage of 220 V ~ 250 V and a frequency of 50 Hz ~ 60 Hz.
Before the cleaning performance test, the prototype shall be loaded with special
consumables such as rinsing agent and salt in accordance with the instructions for use
of the appliance or the method specified by the manufacturer; it shall be fully loaded
with clean loads and tested for at least 3 complete standard washing programs.
For the relevant test requirements of other functions, if not specified in this document,
the corresponding national standards, industry standards or public enterprise standards
may be implemented.
5.3 Safety
The safety of the dishwasher shall comply with the requirements of GB 4706.1 and GB
4706.25.
5.4 Cleaning performance
The dishwasher shall be tested with a standard washing program; the cleaning index PC
shall not be less than 1.12.
5.5 Drying performance
The dishwasher shall be tested with a standard washing program; the drying index PD
shall not be less than 0.86.
5.6 Energy efficiency index
The dishwasher shall be tested with a standard washing program; the energy efficiency
index EEI shall not be greater than 71.
5.7 Water efficiency index
The dishwasher is tested with a standard washing program; the water efficiency index
WEI shall not be greater than 68.
5.8 Short-time washing performance
The dishwasher is tested with a short-time washing program; the cleaning index shall
not be less than 0.75; the energy efficiency index shall not be greater than 80; the water
efficiency index shall not be greater than 75.
5.18.2 Electroplated parts
5.18.2.1 The surface of the electroplated parts of dishwashers shall be smooth, fine and
uniform in color; it shall not have defects such as peeling, bottom exposure, pinholes,
bubbling, obvious spots, scratches.
5.18.2.2 The plating layer of general structural parts of dishwashers shall not have rust
spots beyond 2 mm on the edges and corners.
5.18.3 Painted or plastic-coated parts
5.18.3.1 The coating layer of painted or plastic-coated parts of dishwashers shall have
strong adhesion and firm bonding; it shall not have obvious bubbles, flow marks,
missing coating, primer exposure, wrinkles, cracks and other phenomena.
5.18.3.2 After the corrosion resistance test of painted or plastic-coated parts of
dishwashers, the corrosion width shall not be greater than 1 mm.
5.18.4 Plastic parts
The surface of plastic parts of dishwashers shall be flat, smooth, uniform in color,
resistant to aging; it shall not have defects such as cracks, bubbles, shrinkage holes, etc.
6 Test method
6.1 Test conditions
6.1.1 Test power supply
During the test, the power supply voltage shall be kept within (1 ± 1%) of the rated
voltage. Unless otherwise specified in the test, the test voltage is 220 (1 ± 1%) V.
During the test, the power supply frequency shall be kept within (1 ± 1%) of the rated
frequency. Unless otherwise specified in the test, the test frequency is 50 (1 ± 1%) Hz.
The waveform distortion of the power supply voltage in the standby/shutdown energy
consumption test shall not be greater than 2%; the ratio of peak value to effective value
shall be within 1.34 ~ 1.49.
6.1.2 Test water
During the entire test and pollutant preparation and treatment process, the hardness of
the test water shall be (2.5 ± 0.5) mmol/L. The water hardness shall be adjusted in
accordance with the requirements of GB/T 23119.
Water temperature: (15 ± 2) °C.
For dishwashers that automatically complete water filling, the water pressure of the test
water connected to the water inlet pipe shall be (0.24 ± 0.05) MPa. The water pressure
shall be maintained throughout the test operation.
6.1.3 Ambient temperature
Except for tests with specific requirements for test environmental conditions, the test
shall be conducted indoors at an ambient temperature of (23 ± 2) °C.
6.1.4 Ambient humidity
Except for tests with specific requirements for test environmental conditions, the test
shall be conducted indoors at a relative humidity of (55 ± 5)%.
6.1.5 Reference dishwasher
The cleaning performance (cleaning index PC) o...