GB 38383-2025 PDF English
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| GB 38383-2025 | English | 605 |
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Minimum allowable values and grades of the energy efficiency and water efficiency for dishwashers
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| GB 38383-2019 | English | 145 |
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The minimum allowable values of the energy, water consumption and grades for dishwashers
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Similar standards GB/T 51033 GB 38383-2025: Minimum allowable values and grades of the energy efficiency and water efficiency for dishwashers
---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/GB38383-2025
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 27.010
CCS F 01
Replacing GB 38383-2019
Minimum allowable values and grades of the energy
efficiency and water efficiency for dishwashers
Issued on: AUGUST 01, 2025
Implemented on: APRIL 01, 2027
Issued by. State Administration for Market Regulation;
Standardization Administration of the People's Republic of China.
Table of Contents
Foreword... 3
1 Scope... 5
2 Normative references... 5
3 Terms and definitions... 5
4 Energy efficiency and water efficiency grades... 6
5 Technical requirements... 6
6 Test methods... 7
Annex A (normative) Contaminants and tableware contamination methods... 12
Annex B (normative) Standard tableware... 30
Annex C (normative) Test aids... 31
Annex D (normative) Standard dishwasher... 34
Annex E (normative) Drying methods for contaminated tableware... 37
Annex F (normative) Diagram of tableware placement in a standard dishwasher... 43
Annex G (normative) Evaluation of drying performance... 46
Annex H (normative) Evaluation of cleaning performance... 49
Bibliography... 52
Minimum allowable values and grades of the energy
efficiency and water efficiency for dishwashers
1 Scope
This document specifies the energy efficiency and water efficiency grades, technical
requirements and test methods for electric dishwashers for household and similar
purposes (hereinafter referred to as "dishwashers").
This document applies to dishwashers that use cold and/or hot water.
This document does not apply to commercial or similar dishwashers.
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/T 4214.3, Test method for noise of household and similar electrical appliances
-- Particular requirements for dishwashers
GB/T 20290-2024, Electric dishwashers for household use -- Methods for measuring
the performance
GB/T 23119, Household and similar electrical appliances -- Water for performance
testing
GB 44498, Household and similar electrical appliances -- Health technical
specification
3 Terms and definitions
For the purposes of this document, the terms and definitions defined in GB/T 20290-
2024 as well as the followings apply.
3.1 standard washing program
The cleaning, rinsing and drying processes of dishwashers.
NOTE 1.At the end of the standard washing program, all washing activities stop.
NOTE 2.The manufacturer clearly states this program and it can be selected directly on the panel.
3.2 energy consumption per standard washing program
The amount of electricity consumed by a dishwasher to complete a standard washing
cycle under the test conditions specified in this document.
3.3 water consumption per standard washing program
The amount of water used by a dishwasher to complete a standard wash cycle under the
test conditions specified in this document.
3.4 minimum allowable values of the energy efficiency and water efficiency for
dishwashers
The minimum energy and water efficiency index values allowed for a dishwasher to
complete a standard washing program under the test conditions specified in this
document.
4 Energy efficiency and water efficiency grades
Dishwasher energy and water efficiency grades are divided into five grades based on
the energy efficiency index and water efficiency index, with grade 1 representing the
highest energy and water efficiency level. The dishwasher energy and water efficiency
grade is determined based on the lowest grade achieved in the two indices listed in
Table 1.The measured energy and water efficiency indexes for each grade must meet
the requirements in Table 1.
5 Technical requirements
5.1 Dryness index
The dryness index PD shall not be less than 1.08.
5.2 Cleanliness index
The cleanliness index PC shall not be less than 1.12.
5.3 Noise
Noise shall comply with the requirements of GB 44498.
5.4 Minimum allowable values of energy efficiency and water efficiency
The minimum allowable values of the energy efficiency and water efficiency for
dishwashers are the energy efficiency index and water efficiency index specified in
Grade 5 in Table 1.
5.5 Allowable deviation of stated value
The test shall be conducted according to the test method described in Chapter 6.The
deviation between the measured values of the energy consumption per standard
washing program, water consumption per standard washing program, cleanliness index,
dryness index, and noise index and the manufacturer's stated values shall not exceed
the requirements of Table 2.
6 Test methods
6.1 General requirements
6.1.1 Pre-test preparation
Install and set up the test sample according to the product instructions. Allow the sample
to rest for 12 h under the test conditions described in 6.1.3.Then, use a standard
detergent and rinse aid. Run at least 3 standard wash cycles to remove any residue from
the sample.
6.1.2 Test device
Detergents, rinse aids, and salt shall comply with the requirements of Annex C. The
amount of detergent shall be set according to the manufacturer's recommendations, but
shall not exceed 8 g + (0.5 g × number of individual tableware sets). The amount of
rinse aid and salt shall also be set according to the manufacturer's recommendations.
NOTE. When there is disagreement about the test results, test aids with national standard sample
(substance) certificates shall be used for testing.
6.1.8 Standard dishwasher
Standard dishwashers shall comply with the provisions of Annex D.
NOTE. When there is disagreement about the test results, a standard dishwasher with a national
standard sample (substance) certificate shall be used for the test.
6.2 Test and calculations
6.2.1 Test
Except for the test methods specified below, other tests shall be carried out in
accordance with the provisions of GB/T 20290-2024.
a) The noise test shall be completed before conducting other performance tests. The
noise test load shall comply with the requirements of 6.1.6.The loading method
shall be the same as that for other performance tests. The noise test additive shall
comply with the requirements of 6.1.7.The dosage shall comply with the
requirements of GB/T 4214.3.
b) The test prototype and the standard dishwasher shall be tested in parallel (using
the same batch and contaminants prepared at the same time). The test prototype's
power consumption, water consumption, drying performance, and cleaning
performance shall be tested simultaneously. Use the tableware specified in Annex
B. Prepare the contaminants according to the method in Annex A to achieve the
specified contamination state. Dry the contaminated tableware according to the
method in Annex E. Load the dried contaminated tableware into the test prototype
according to the loading method provided by the manufacturer. Load the standard
dishwasher according to Annex F. After loading, begin testing.
c) After the standard wash cycle is complete, the test sample and standard dishwasher
shall remain connected to the power supply and undisturbed. After 30 min,
immediately fully open the test sample door. Conduct a combined evaluation of
drying and cleaning performance according to Annexes G and H. Simultaneously
record power and water consumption.
6.2.2 Calculation
6.2.2.1 Energy efficiency index
Annex A
(normative)
Contaminants and tableware contamination methods
A.1 Contaminants
Contaminants include milk, tea, minced meat, eggs, oatmeal, spinach, and margarine.
A.2 Preparation and use of contaminants
A.2.1 General
Each test shall use freshly prepared contaminants. Once prepared, the contaminants
shall be refrigerated in a sealed container. The time between final preparation of the
contaminant and its application on tableware shall not exceed 12 h.
Based on the number of tableware sets in the test prototype and standard dishwasher,
calculate the total mass of contaminants required (g/piece × number of tableware).
The contamination process began with preheating the milk. The tea and other
contaminants are prepared simultaneously. During the tea pre-drying process (1 h), the
preparation and use of the other contaminants are completed.
For tea and milk contamination, follow the procedures in A.2.2 and A.2.3.For other
contaminants, use a dedicated contamination tool to apply a specified amount of
contaminant to the designated tableware.
The contamination shall be evenly distributed.
Do not re-coat contaminated dishes after they have dried.
A.2.2 Milk
A.2.2.1 General requirements
Use ultra-heat-treated (U.H.T.) milk with a fat content of 1.5%~2%. Use within 30 days
of the expiration date. Refrigerate opened milk. Use within 2 days.
If U.H.T. milk is unavailable, use fresh homogenized milk with a fat content of
1.5%~2%. Refrigerate after opening and use within 2 days.
A.2.2.2 Preparation of required tools
Microwave ovens shall comply with the requirements of Annex F of GB/T 20290-2024.
NOTE. When there is disagreement about the test results, use a microwave oven with a national
standard sample (substance) certificate to conduct the test.
Glasses shall comply with the requirements of Annex B.
Pipette capacity shall be 10 mL.
A.2.2.3 Microwave preheating
Before cooking milk, preheat the microwave as follows.
a) Place six glasses containing 50 mL of water in a microwave oven at a temperature
of (23 ± 2)°C. These glasses are not used as test loads;
b) Place the glasses evenly along a circle with a diameter of 160 mm (the center of
the circle is the center of the glass turntable), see Figure A.1;
c) According to the requirements of Annex F of GB/T 20290-2024, the microwave
oven heats tu,1 at a nominal power of 780 W (Pu,1). Then, it heats tu,2 at a nominal
power of 150 W (Pu,2);
d) Once preheated, remove the glass from the microwave.
A.2.2.4 Preparation
Contaminated dishes. glass.
Contaminated amount. add 10 mL of milk to each glass.
Contamination method. before contamination, remove the milk from the refrigerator
and shake it well (approximately 30 s). Immediately after shaking, pipette 10 mL of
milk into each glass and boil.
Milk shall be refrigerated immediately after use.
A.2.2.5 Cooking process
After preheating, immediately place six glasses filled with milk into the microwave.
First, cook continuously at 780 W. Then, continue cooking at 150 W. Cooking time shall
be calculated according to Annex F of GB/T 20290-2024.
During each cooking operation, 6 contaminated milk glasses shall be kept in the
microwave oven. The glasses shall be placed as shown in Figure A.1, with the bottoms
of the glasses flat on the turntable.
NOTE. If more than 6 glasses are required for the test, brew the remaining 6 glasses immediately
after the first set of 6 glasses have been brewed, without reheating.
After cooking in a microwave oven for a period of time, compare the color of the cooked
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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