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Electric dishwashers for household use - Methods for measuring the performance
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| GB/T 20290-2016 | English | 145 |
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Electric dishwashers for household use -- Methods for measuring the performance
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Electric dishwashers for household use -- Methods for measuring the performance
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GB/T 20290-2024: Electric dishwashers for household use - Methods for measuring the performance---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT20290-2024
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 97.040.40
CCS Y 62
Replacing GB/T 20290-2016
Electric Dishwashers for Household Use - Methods for
Measuring the Performance
(IEC 60436.2020, MOD)
Issued on. JUNE 29, 2024
Implemented on. JANUARY 1, 2025
Issued by. State Administration for Market Regulation;
Standardization Administration of the People’s Republic of China.
Table of Contents
Foreword... 4
1 Scope... 9
2 Normative References... 9
3 Terms, Definitions and Symbols... 10
4 Test Items... 17
5 General Conditions for Testing... 18
6 Combined Cleaning Performance and Drying Performance Test Runs... 24
7 Combined Evaluation of Cleaning and Drying performance... 40
8 Power Consumption, Water Consumption and Programme Time... 52
9 Noise... 55
Appendix A (normative) Place Setting and Serving Pieces... 56
Appendix B (informative) Tableware Specifications... 61
Appendix C (normative) Description of Soil Coating Amount... 68
Appendix D (informative) Photos of Soiled Tableware... 71
Appendix E (normative) Test Aids... 75
Appendix F (normative) Microwave Oven... 77
Appendix G (normative) Circulating Hot Air Oven... 80
Appendix H (informative) Alternative Evaluation Table for Cleaning and Drying Evaluation... 82
Appendix I (normative) Relevant Requirements for Reference Machine... 86
Appendix J (informative) Chromaticity Table... 92
Appendix K (normative) Supplementary Content of Power Consumption of Dishwashers... 93
Appendix L (informative) Suppliers of Test Materials... 100
Appendix M (informative) Format of Test Report... 101
Appendix N (normative) Test Enclosure for Built-in and Integrated Dishwashers... 103
Appendix O (informative) Internal Evaluation Criteria... 107
Appendix P (informative) Test Steps of Induction Programme... 108
Appendix Q (informative) Evaluation of Additional Rinsing Performance... 111
Appendix R (informative) Evaluation of Filtering Performance of Dishwashers... 113
Appendix S (informative) Flow Chart of Filter System Evaluation... 119
Appendix T (normative) Test Instruments and Accuracy Requirements... 120
Appendix U (normative) Effect of Inlet Water Temperature on Power Consumption... 121
Appendix V (informative) Test of Intermittently Recurring Functions... 126
Bibliography... 134
Foreword
This document was drafted in accordance with the rules provided in GB/T 1.1-2020 Directives
for Standardization - Part 1.Rules for the Structure and Drafting of Standardizing Documents.
This document serves as a replacement for GB/T 20290-2016 Electric Dishwashers for
Household Use - Methods for Measuring the Performance. In comparison with GB/T 20290-
2016, apart from structural adjustments and editorial modifications, the main technical changes
are as follows.
---The definition of dishwasher is modified (see 3.1.1; 3.1 of Version 2016);
---The terms and definitions of free-standing dishwasher, built-in dishwasher, integrated
dishwasher, test machine, reference machine, test run, test series, tableware, Chinese
standard tableware, regeneration, end of programme mode, end-of-programme mode
duration, left-on mode duration, power management system, refrigerated, freeze,
automatic of self-cleaning filter, manual filter, all activity ceases, intermittently
recurring function are added (see 3.1.2 ~ 3.1.9, 3.1.12, 3.1.22, 3.1.26, 3.1.30 ~ 3.1.38);
---The definitions of cycle, detergent, off mode, delay start mode are modified (see 3.1.16,
3.1.24, 3.1.28 and 3.1.29; 3.5, 3.12, 3.16 and 3.18 of Version 2016);
modified into “left on mode (TRANSLATOR NOTE. “等待模式” in Chinese)” (see
3.1.20 and 3.1.27; 3.9 and 3.17 of Version 2016);
---A list of symbols involved in the test is added (see 3.2);
---A test method for measuring power consumption related content in performance
characteristics is added (see Chapter 4 and Appendix K);
---Instructions on parameter tolerances and rounding calculation are added (see 5.1.1);
---The test voltage error ranges of the test machine and reference machine are modified
(see 5.3.1.1 and 5.3.2.1; 5.3.1.1 and 5.3.2.1 of Version 2016);
---The laboratory ambient temperature is modified, and the temperature difference
between the oven drying method and the air drying method is deleted (see 5.5; 5.5 of
Version 2016);
---The limit requirements and configuration requirements for soft water hardness are
modified (see 5.6.3; 5.6.3 of Version 2016);
---The detergent type and dosage requirements are modified (see 5.7; 5.7 of Version 2016);
---Type IV rinse aid is deleted (see 5.8 of Version 2016);
---The information description of intermittently recurring function, its impact on test
results and its handling mode are added (see 5.10);
---The requirements for the test of Chinese tableware are added (see 6.1);
---The requirements for new tableware pre-treatment, tableware adjustment and
maintenance are added (see 6.2.2, 6.2.3 and 6.2.4);
---The general requirements for the preparation and use of soils are modified (see 6.4.1;
6.4 of Version 2016);
---The shelf life of ultra-heat-treated milk is modified (see 6.4.2.1; 6.4.1.1 of Version 2016);
---The content of microwave oven heating time conversion is deleted (see 6.4.1.2 of
Version 2016);
---The description of the use of tea leaves, and the pre-drying process by the oven and air
drying methods are modified (see 6.4.3.3, 6.4.3.4 and 6.4.3.5; 6.4.2.1, 6.4.2.2 and
6.4.2.3 of Version 2016);
---The water ratio when preparing minced meat, the type of tableware used, dosage and
soiling method for minced meat are modified (see 6.4.4.2 and 6.4.4.3; 6.4.3.1 and
6.4.3.2 of Version 2016);
---The type of tableware used, dosage and soiling method for eggs and oats are modified
(see 6.4.5.3 and 6.4.6.3; 6.4.4.2 and 6.4.5.2 of Version 2016);
---The preparation and storage methods for freeze-dried spinach are added (see 6.4.7.2);
---The type of tableware used, dosage and soiling method for spinach and butter are
modified (see 6.4.7.3 and 6.4.8.3; 6.4.6.2 and 6.4.7.2 of Version 2016);
---The tableware placement requirements for the oven drying method are modified (see
6.5.2; 6.5.1 of Version 2016);
---The loading and operation requirements for tableware are modified (see 6.6.1 and 6.6.2;
6.6.1 and 6.6.2 of Version 2016);
---The evaluation mode and calculation of cleaning performance and drying performance
are modified (see Chapter 7; Chapter 6 and Chapter 7 of Version 2016);
---The description of the test methods for power consumption, water consumption and
programme time is modified (see 8.2; 8.2 of Version 2016);
---The general requirements for the evaluation methods for power consumption, water
consumption and programme time are added (see 8.3.1);
---Some content of hot water power consumption and the description of water consumption
and time are modified (see 8.3.3, 8.3.4 and 8.3.5; 8.2.3, 8.2.4 and 8.2.5 of Version 2016);
---The correction of cold water power consumption is deleted (see 8.2.2 of Version 2016);
---The table of tableware specifications and test load composition is modified (see A.2;
A.2 and A.3 of Version 2016);
---The description of soil coating amount is modified (see Appendix C; Appendix B of Version 2016);
---The detergent information of test additives is modified (see E.2; Appendix C of Version 2016);
---The description of standard dishwasher (Type 1) is deleted (see Appendix D of Version 2016);
---The models and calibration content of microwave ovens are added (see Appendix F; F.1
of Version 2016);
---The content of oven calibration is modified (see G.2; F.2 of Version 2016);
---The description of the reference machine (Type 2) is modified, and the requirements for
loading Chinese tableware for the reference machine are added (see Appendix I;
Appendix M of Version 2016);
---The supplementary content of dishwasher power consumption is modified (see
Appendix K; Appendix N of Version 2016);
---The test housing requirements for built-in and integrated dishwashers are modified, and
the test fixture for sink dishwashers is added (see Appendix N; Appendix H of Version 2016);
---The test instruments and accuracy requirements are added (see Appendix T).
This document modifies and adopts IEC 60436.2020 Electric Dishwashers for Household Use
- Methods for Measuring the Performance.
In comparison with IEC 60436.2020, the following structural adjustments are made.
---3.1.12 “Chinese standard tableware” is added, and 3.1.13 ~ 3.1.38 correspond to 3.1.12
~ 3.1.37 of IEC 60436.2020;
---The Chinese tableware loading diagram for I.5 reference machine is added.
The technical differences between this document and IEC 60436.2020, and the causes for these
differences are as follows.
---The definitions of automatic or self-cleaning filter and manual filter are modified (see
3.1.35 and 3.1.36), so as to facilitate quantitative understanding of the terms;
---The normative reference to GB 38383-2019, and the corresponding Chinese tableware
terms, specifications and test requirements, as well as the target score of the reference
machine for Chinese tableware and the Chinese tableware loading diagram are added
(see 3.1.12, 6.1, 7.2.3 and I.5), so as to evaluate the performance characteristics of
dishwashers for Chinese tableware;
---The test fixture for sink dishwashers is added to improve the operability of the test (see
Appendix N).
This document makes the following editorial modifications.
---Some notes are added (see the note to 3.1.3 and the note to 3.1.14);
---The specifications of Chinese tableware are added (see Appendix B).
Please be noted that certain content of this document may involve patents. The institution
issuing this document does not undertake the responsibility of identifying these patents.
This document was proposed by China National Light Industry Council.
This document shall be under the jurisdiction of National Technical Committee 46 on
Household Electric Appliances of Standardization Administration of China (SAC/TC 46).
The issuing of the previous versions.
---First-issued in 2006 as GB/T 20290-2006;
---First-revised in 2016;
---This is the second-revision.
1 Scope
This document specifies the main performance characteristics of electric dishwashers for
household and similar use and describes standard methods for testing these characteristics.
2 Normative References
The contents of the following documents constitute indispensable clauses of this document
through the normative references in the text. In terms of references with a specified date, only
versions with a specified date are applicable to this document. In terms of references without a
specified date, the latest version (including all the modifications) is applicable to this document.
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
3 Terms, Definitions and Symbols
3.1 Terms and Definitions
The following terms and definitions are applicable to this document.
3.1.1 dishwasher
Machine that cleans, rinses and dries tableware by chemical, mechanical, thermal, and electric means.
3.1.2 free-standing dishwasher
Dishwasher which is intended to be installed without an enclosing structure.
4 Test Items
The standard methods for measuring performance characteristics are determined as follows.
---In accordance with the requirements of Chapter 6 and Chapter 7, carry out a combined
cleaning and drying performance test runs;
---In accordance with the requirements of Chapter 8, carry out power consumption, water
consumption, cycle time and programme time tests.
5 General Conditions for Testing
The dishwasher manufacturer’s instructions for installation and use shall be followed. In case
of disagreement, the requirements of this document shall prevail.
Dishwashers shall be tested as the free-standing type. If it can be both free-standing and
built-in / integrated, then, the test shall be carried out as free-standing.
6 Combined Cleaning Performance and Drying Performance Test Runs
6.1 General Requirements and Purposes
The test shall be carried out under the environmental conditions of Chapter 5, simultaneously
with the reference machine specified in Appendix I.
The test load soiling of the reference machine and the test machine shall be prepared at the same time.
7 Combined Evaluation of Cleaning and Drying performance
The light source shall be installed in a way that avoids direct exposure to light during the evaluation.
It is importance to avoid cross soiling (dropping, transferring or dripping) of soils from
one tableware to another. In addition, touch the tableware as little as possible.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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