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GB/T 4214.4-2020 PDF in English


GB/T 4214.4-2020 (GB/T4214.4-2020, GBT 4214.4-2020, GBT4214.4-2020)
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GB/T 4214.4-2020: PDF in English (GBT 4214.4-2020)

GB/T 4214.4-2020
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 97.060
Z 32
GB/T 4214.4-2020 / IEC 60704-2-4:2011
Replacing GB/T 4214.4-2008
Test method for noise of household and similar
electrical appliances - Particular requirements for
washing machines and spin extractors
(IEC 60704-2-4:2011, Household and similar electrical appliances - Test
code for the determination of airborne acoustical noise - Part 2-4:
Particular requirements for washing machines and spin extractors, IDT)
ISSUED ON: JULY 21, 2020
IMPLEMENTED ON: FEBRUARY 01, 2021
Issued by: State Administration for Market Regulation;
Standardization Administration of the PRC.
Table of Contents
Foreword ... 3 
1 Scope and object ... 5 
2 Normative references ... 7 
3 Terms and definitions ... 7 
4 Measurement methods and acoustical environments ... 9 
5 Instrumentation ... 9 
6 Operation and location of appliances under test ... 9 
7 Measurement of sound power levels ... 13 
8 Calculation of sound pressure and sound power levels ... 14 
9 Information to be recorded ... 15 
10 Information to be reported ... 16 
Annexes ... 17 
Bibliography ... 18 
Foreword
GB/T 4214 "Test method for noise of household and similar electrical
appliances" is divided into 7 parts:
- Part 1: General requirements;
- Part 2: Particular requirements for vacuum cleaners;
- Part 3: Particular requirements for dishwashers;
- Part 4: Particular requirements for washing machines and spin extractors;
- Part 5: Particular requirements for electric shavers;
- Part 6: Particular requirements for electric hair care appliances;
- Part 7: Particular requirements for tumbler dryers.
This Part is Part 4 of GB/T 4214. This Part is used in conjunction with GB/T
4214.1-2017.
The portion where this Part states “Application” indicates that the corresponding
provisions in GB/T 4214.1-2017 apply to this Part. For the portion where this
Part states “Replacement”, the provisions in this Part shall prevail. The portion
where this Part states “Addition” means that, in addition to complying with the
corresponding provisions in GB/T 4214.1-2017, the subclauses added in the
provisions of this Part shall also be complied with.
This Part is drafted in accordance with the rules given in GB/T 1.1-2009.
This Part replaces GB/T 4214.4-2008 "Household and similar electrical
appliances - Test code for determination of airborne acoustical noise - Particular
requirements for washing machines and spin extractors". Compared with GB/T
4214.4-2008, in addition to editorial changes, the main technical changes are
as follows:
- ADD measurement uncertainty and standard deviation (see 1.3 and 1.101);
- Modify the definition of standard test load and standard test programme
(see Clause 3; Clause 3 of the 2008 edition);
- Modify the test enclosure as the test enclosure specified in GB/T 4214.1-
2017 (see 6.5.5; 6.5.5 of the 2008 edition);
- Modify the information to be reported (see Clause 10; Clause 10 of the 2008
edition).
This Part, using translation method, is identical to IEC 60704-2-4:2011
"Household and similar electrical appliances - Test code for the determination
of airborne acoustical noise - Part 2-4: Particular requirements for washing
machines and spin extractors".
This Part has made the following editorial change:
- In order to unify the name of this series of standards, change the name of
this Part to "Test method for noise of household and similar electrical
appliances - Particular requirements for washing machines and spin
extractors".
Attention is drawn to the possibility that some of the elements of this document
may be the subject of patent rights. The issuing authority of this document shall
not be held responsible for identifying any or all such patent rights.
This Part was proposed by China National Light Industry Council.
This Part shall be under the jurisdiction of National Standardization Technical
Committees on Household Electric Appliances (SAC/TC 46).
Drafting organizations of this Part: China Household Electric Appliance
Research Institute, Qingdao Haier Roller Washing Machine Co., Ltd., National
Household Appliance Quality Supervision and Inspection Center, BSH
Electrical Appliances (Jiangsu) Co., Ltd., Changhong Meiling Co., Ltd., Hefei
Midea Washing Machine Co., Ltd., Panasonic Home Appliances R&D Center
(Hangzhou) Co., Ltd., Whirlpool (China) Co., Ltd.
Main drafters of this Part: Li Shanshan, Shu Hai, Sun Luping, Wang Xiaofeng,
Wang Dongsheng, Jiang Tao, Jia Chungeng, Huang Yukai, Chen Songtao.
The previous editions of the standard replaced by this Part were released as
follows:
- GB/T 4214.4-2008.
Test method for noise of household and similar
electrical appliances - Particular requirements for
washing machines and spin extractors
1 Scope and object
This clause of GB/T 4214.1-2017 is applicable except as follows:
1.1 Scope
1.1.1 General
Addition:
This Part of GB/T 4214 apply to single unit electrical washing machines and the
washing and spinning function of combined appliances for household and
similar use and to spin extractors for household and similar use.
Note 101: For test method for drying function, see GB/T 4214.7.
1.1.2 Types of noise
Replacement:
The methods specified in GB/T 6881.2, GB/T 6881.3 and ISO 3744 can be used
for measuring noise emitted by washing machines and spin extractors.
1.1.3 Size of the source
Replacement:
The method specified in ISO 3744 is applicable to noise sources of any size.
When applying GB/T 6881.2 and GB/T 6881.3, care should be taken that the
maximum size of the washing machine or spin extractor under test fulfils the
requirements specified in 1.3 of GB/T 6881.2 and GB/T 6881.3.
1.2 Object
Addition:
Requirements for the declaration of noise emission values are not within the
scope of this Part.
......
 
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.