GB/T 4214 Test method for noise of household and similar electrical appliances is divided into nine 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 washing machines and spin extractors;
——Part 8: Particular requirements for electric cooking ranges, ovens, grills, microwave ovens and any combination of these;
——Part 9: Particular requirements for fans.
This is part 9 of GB/T 4214.
This part shall be used in combination with GB/T 4214.1-2017. The clauses state "applicable", that means corresponding clauses of GB/T 4214.1-2017 are applicable to this part; when the clauses state "replacement" give priority to the clauses in this part; when the clauses state "addition", that means not only the corresponding clauses in GB/T 4214.1-2017, but also added clauses of this part shall be complied.
This part is developed in accordance with the rules given in GB/T 1.1-2009.
This part is modified in relation to IEC 60704-2-7:2020 Household and similar electrical appliances - Test code for the determination of airborne acoustical noise - Part 2-7: Particular requirements for fans.
The technical deviations between this part and IEC 60704-2-7:2020 and their reasons are as follows:
——Floor fans are added to the scope according to the situation of China's fan industry (1.1.1 of Clause 1);
——The terms and definitions of 3.115 floor fans are added according to the situation of China's fan industry (Clause 3);
——The definitions of comfort fans in IEC 60879:2019 are used many times in 3.101-3.109, so the terms and definitions of 3.116 comfort fans are added for ease of use and understanding (Clause 3);
——The test height of adjustable table fans, floor fans and pedestal fans are described in detail, and the cases that can swing automatically are listed. Reason: clarify the test height of the adjustable height table fans, floor fan s and pedestal fans, and the condition of automatic swing (see 6.4.1);
——Ceiling bracket fans are added, because the installation of the ceiling bracket fans and ceiling fans are the same (6.5.1);
——The installation modes of wall bracket fans are added to clarify the installation modes of wall bracket fans (6.5.4);
——7.1.1 The application range of the measuring surface is increased by the floor fans. Reason: The above types of fans are added to the scope in Clause 1 (7.1.1);
——7.1.6 The high pedestal fans applicable to the measurement surface is explained. It is applicable to the high pedestal fans whose geometric center of the reference body is more than 1 m above the ground and which cannot be adjusted. Reason: clarify the range of the high pedestal fans (7.1.6).
The following editorial changes have been made in this part:
——In order to unify the name of this series of standards, the name of this part is revised to Test method for noise of household and similar electrical appliances - Particular requirements for fans.
This part was proposed by the China National Light Industry Council.
This part is under the jurisdiction of the National Technical Committee on Household Appliances Condenser of Standardization Administration of China.
Test method for noise of household and similar electrical appliances - Particular requirements for fans
1 Scope and object
This clause of GB/T 4214.1-2017 is applicable except as follows.
1.1 Scope
1.1.1 General
Replacement:
This part of GB/T 4214 applies to electrical fans (including their accessories and their component parts) for household and similar use, designed for AC or DC supply.
The motor, the impeller and their housing, if any, form a single unit.
This part is applicable to:
——conventional fans;
——table fans;
——pedestal fan;
——ceiling fan;
——bladeless fans;
——wall bracket fans;
——ceiling bracket fans;
——louver fans;
——tower fans;
——ventilating and partition ventilating fans;
——floor fans.
This part does not apply to:
——fans that are part of a ventilation system;
——fans designed exclusively for industrial purposes;
——fans that are part of an appliance (for example cooling fans);
——fans with additional functions (for example heating, humidifying).
Limitations for the use of this test code are given in Clause 1 of GB/T 4214.1-2017.
1.1.2 Type of noise
Replacement:
The methods specified in GB/T 6881.2- 2017, GB/T 6881.3-2002 and GB/T 3767-2016 can be used for measuring noise emitted by fans.
1.1.3 Size of Source
Replacement:
The method specified in GB/T 3767-2016 is applicable to noise Sources of any size. When applying GB/T 6881.2-2017 and GB/T 6881.3-2002, care should be taken to ensure that the maximum size of the appliance under test fulfils the requirements specified in 1.2 of GB/T 6881.2-2017 and 1.3 of GB/T 6881.3-2002.
1.2 Object
Addition:
This part describes the determination of the noise emission of household fans in normal operation at maximum speed. Other speeds can, in addition, be used. Requirements for the declaration of noise emission values are not within the scope of this part.
The aim of this part is to give direction for measuring the noise in a room resulting from the operation of a fan.
Note 101: For determining and verifying noise emission values declared in product specifications, see IEC 60704-3.
1.3 Measurement uncertainty
Replacement:
The estimated values of standard deviations of sound power levels, determined according to this standard, see Table 101:
Table 101 Standard deviations of sound power levels
Standard deviation/dB
σr(repeatability) σR(repeatability)
0.4 1.0
Addition:
1.101 Standard deviation for declaration and verification
For the purpose of determining and verifying declared noise emission values according to IEC 60704-3, the values indicated in Table 102 apply:
Table 102 Standard deviations for declaration and verification
Standard deviation/dB
σP (production) σt (total) σM (reference)
0.5-1.0 1.0-1.4 1.5
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 reference, the latest edition of the referenced documents (including any amendments) applies.
This clause of GB/T 4214.1- 2017 is applicable except as follows:
Replacement:
GB/T 3767-2016 Acoustics - Determination of sound power levels and sound energy levels of noise Sources using sound pressure - Engineering methods for an essentially free field over a reflecting plane (ISO 3744:2010, IDT)
GB/T 6881.2-2017 Acoustics - Determination of sound power levels and sound energy levels of noise Sources using sound pressure - Engineering methods for small movable Sources in reverberant fields - Part -1: Comparison method for a hard-walled test room (ISO 3743-1:2010, IDT)
Addition:
GB/T 4214.1-2017 Test method for noise of household and similar electrical appliances - General requirements (IEC 60704-1:2010, IDT)
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
This clause of GB/T 4214.1- 2017 is applicable except as follows:
Addition:
3.101
conventional fan
comfort fan with a propeller having two or more blades, with free inlet and outlet of air
[Source: IEC 60879:2019, 3.2]
3.102
tower fan
comfort fan for use directly on the floor having a vertically elongated design of the cross flow type, tangential type or centrifugal type or impeller type with a free inlet and outlet of air
[Source: IEC 60879:2019, 3.3]
3.103
bladeless fan
comfort fan of any type that is not fitted with a propeller
[Source: IEC 60879:2019, 3.4]
3.104
ceiling fan
conventional fan provided with a device for suspension from the ceiling of a room so that the blades rotate in a horizontal plane with the diameter of the blade not larger than 1800 mm
[Source: IEC 60879:2019, 3.5]
3.105
table fan
comfort fan intended for use on a table
Note 1: Table fans have a maximum adjustable or non-adjustable height not greater than 1200mm.
Note 2: Adjustment of height, position and oscillation can be possible.
comfort fan having a moving louvre which provides a continuously changing multi-directional air flow
[Source: IEC 60879:2019, 3.10]
3.110
ventilating fan
fan intended to displace air either from one side of a partition to the other, or within a duct installed either on the fan inlet or on the fan outlet or both
[Source: IEC 60665:2018, 3.2]
3.111
partition ventilating fan
type A ventilating fan
ventilating fan installed in or upon the aperture of a partition in order to displace air from one side of the partition to the other side, both the sides being free spaces
[Source: IEC 60665:2008, 3.3]
3.112
free inlet partition ventilating fan
type B ventilating fan
ventilating fan with a direct inlet from free space and with ducted outlet
[Source: IEC 60665:2018, 3.4]
3.113
free outlet partition ventilating fan
type C ventilating fan
ventilating fan with ducted inlet, and with direct outlet to free space
[Source: IEC 60665:2018, 3.5]
3.114
fully ducted ventilating fan
type D ventilating fan
ventilating fan with ducted inlet and ducted outlet
[Source: IEC 60665:2018, 3.6]
3.115
floor fan
fan having two or more blades and height adjuster for worktable or ground mounting, driven by a motor for blades to rotate and intended for use with free inlet and outlet of air
3.116
comfort fan
fans that are mainly designed to generate air flow around or on a part of the human body to make the human body feel cool and comfortable, including fans that can perform additional functions such as lighting
Note: Comfort fans are also referred to as "fans" in this part.
[Source: IEC 60879:2019, 3.1]
4 Measurement methods and acoustical environments
This clause of GB/T 4214.1-2017 is applicable except as follows:
4.2 Direct method
Addition:
If pure tone components are present in the noise emitted by the Source, the estimated standard deviation of the measured sound pressure levels in the special reverberation room may increase. In such cases, additional microphone positions or Source positions may be necessary, such as those specified in GB/T 6881.3-2002.
4.3 Comparison method
Addition:
If pure tone components are present in the noise emitted by the Source, the estimated standard deviation of the measured sound pressure levels in the hard-walled test room or in the special reverberation room may increase. In such cases, additional microphone positions or Source positions may be necessary, such as those specified in GB/T 6881.2-2017 or GB/T 6881.3-2002.
Foreword I 1 Scope and object 2 Normative references 3 Terms and definitions 4 Measurement methods and acoustical environments 5 Instrumentation 6 Operation and location of appliances under test 7 Measurement of sound pressure levels 8 Calculation of sound pressure and sound power levels 9 Information to be recorded 10 Information to be reported Appendixes Annex B (Normative) Test enclosure Bibliography
GB/T 4214 Test method for noise of household and similar electrical appliances is divided into nine 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 washing machines and spin extractors;
——Part 8: Particular requirements for electric cooking ranges, ovens, grills, microwave ovens and any combination of these;
——Part 9: Particular requirements for fans.
This is part 9 of GB/T 4214.
This part shall be used in combination with GB/T 4214.1-2017. The clauses state "applicable", that means corresponding clauses of GB/T 4214.1-2017 are applicable to this part; when the clauses state "replacement" give priority to the clauses in this part; when the clauses state "addition", that means not only the corresponding clauses in GB/T 4214.1-2017, but also added clauses of this part shall be complied.
This part is developed in accordance with the rules given in GB/T 1.1-2009.
This part is modified in relation to IEC 60704-2-7:2020 Household and similar electrical appliances - Test code for the determination of airborne acoustical noise - Part 2-7: Particular requirements for fans.
The technical deviations between this part and IEC 60704-2-7:2020 and their reasons are as follows:
——Floor fans are added to the scope according to the situation of China's fan industry (1.1.1 of Clause 1);
——The terms and definitions of 3.115 floor fans are added according to the situation of China's fan industry (Clause 3);
——The definitions of comfort fans in IEC 60879:2019 are used many times in 3.101-3.109, so the terms and definitions of 3.116 comfort fans are added for ease of use and understanding (Clause 3);
——The test height of adjustable table fans, floor fans and pedestal fans are described in detail, and the cases that can swing automatically are listed. Reason: clarify the test height of the adjustable height table fans, floor fan s and pedestal fans, and the condition of automatic swing (see 6.4.1);
——Ceiling bracket fans are added, because the installation of the ceiling bracket fans and ceiling fans are the same (6.5.1);
——The installation modes of wall bracket fans are added to clarify the installation modes of wall bracket fans (6.5.4);
——7.1.1 The application range of the measuring surface is increased by the floor fans. Reason: The above types of fans are added to the scope in Clause 1 (7.1.1);
——7.1.6 The high pedestal fans applicable to the measurement surface is explained. It is applicable to the high pedestal fans whose geometric center of the reference body is more than 1 m above the ground and which cannot be adjusted. Reason: clarify the range of the high pedestal fans (7.1.6).
The following editorial changes have been made in this part:
——In order to unify the name of this series of standards, the name of this part is revised to Test method for noise of household and similar electrical appliances - Particular requirements for fans.
This part was proposed by the China National Light Industry Council.
This part is under the jurisdiction of the National Technical Committee on Household Appliances Condenser of Standardization Administration of China.
Test method for noise of household and similar electrical appliances - Particular requirements for fans
1 Scope and object
This clause of GB/T 4214.1-2017 is applicable except as follows.
1.1 Scope
1.1.1 General
Replacement:
This part of GB/T 4214 applies to electrical fans (including their accessories and their component parts) for household and similar use, designed for AC or DC supply.
The motor, the impeller and their housing, if any, form a single unit.
This part is applicable to:
——conventional fans;
——table fans;
——pedestal fan;
——ceiling fan;
——bladeless fans;
——wall bracket fans;
——ceiling bracket fans;
——louver fans;
——tower fans;
——ventilating and partition ventilating fans;
——floor fans.
This part does not apply to:
——fans that are part of a ventilation system;
——fans designed exclusively for industrial purposes;
——fans that are part of an appliance (for example cooling fans);
——fans with additional functions (for example heating, humidifying).
Limitations for the use of this test code are given in Clause 1 of GB/T 4214.1-2017.
1.1.2 Type of noise
Replacement:
The methods specified in GB/T 6881.2- 2017, GB/T 6881.3-2002 and GB/T 3767-2016 can be used for measuring noise emitted by fans.
1.1.3 Size of Source
Replacement:
The method specified in GB/T 3767-2016 is applicable to noise Sources of any size. When applying GB/T 6881.2-2017 and GB/T 6881.3-2002, care should be taken to ensure that the maximum size of the appliance under test fulfils the requirements specified in 1.2 of GB/T 6881.2-2017 and 1.3 of GB/T 6881.3-2002.
1.2 Object
Addition:
This part describes the determination of the noise emission of household fans in normal operation at maximum speed. Other speeds can, in addition, be used. Requirements for the declaration of noise emission values are not within the scope of this part.
The aim of this part is to give direction for measuring the noise in a room resulting from the operation of a fan.
Note 101: For determining and verifying noise emission values declared in product specifications, see IEC 60704-3.
1.3 Measurement uncertainty
Replacement:
The estimated values of standard deviations of sound power levels, determined according to this standard, see Table 101:
Table 101 Standard deviations of sound power levels
Standard deviation/dB
σr(repeatability) σR(repeatability)
0.4 1.0
Addition:
1.101 Standard deviation for declaration and verification
For the purpose of determining and verifying declared noise emission values according to IEC 60704-3, the values indicated in Table 102 apply:
Table 102 Standard deviations for declaration and verification
Standard deviation/dB
σP (production) σt (total) σM (reference)
0.5-1.0 1.0-1.4 1.5
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 reference, the latest edition of the referenced documents (including any amendments) applies.
This clause of GB/T 4214.1- 2017 is applicable except as follows:
Replacement:
GB/T 3767-2016 Acoustics - Determination of sound power levels and sound energy levels of noise Sources using sound pressure - Engineering methods for an essentially free field over a reflecting plane (ISO 3744:2010, IDT)
GB/T 6881.2-2017 Acoustics - Determination of sound power levels and sound energy levels of noise Sources using sound pressure - Engineering methods for small movable Sources in reverberant fields - Part -1: Comparison method for a hard-walled test room (ISO 3743-1:2010, IDT)
Addition:
GB/T 4214.1-2017 Test method for noise of household and similar electrical appliances - General requirements (IEC 60704-1:2010, IDT)
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
This clause of GB/T 4214.1- 2017 is applicable except as follows:
Addition:
3.101
conventional fan
comfort fan with a propeller having two or more blades, with free inlet and outlet of air
[Source: IEC 60879:2019, 3.2]
3.102
tower fan
comfort fan for use directly on the floor having a vertically elongated design of the cross flow type, tangential type or centrifugal type or impeller type with a free inlet and outlet of air
[Source: IEC 60879:2019, 3.3]
3.103
bladeless fan
comfort fan of any type that is not fitted with a propeller
[Source: IEC 60879:2019, 3.4]
3.104
ceiling fan
conventional fan provided with a device for suspension from the ceiling of a room so that the blades rotate in a horizontal plane with the diameter of the blade not larger than 1800 mm
[Source: IEC 60879:2019, 3.5]
3.105
table fan
comfort fan intended for use on a table
Note 1: Table fans have a maximum adjustable or non-adjustable height not greater than 1200mm.
Note 2: Adjustment of height, position and oscillation can be possible.
[Source: IEC 60879:2019, 3.6, modified − Note 2 to entry added]
3.106
pedestal fan
comfort fan mounted on a pedestal of fixed or variable height
Note 1: Pedestal fans have a maximum adjustable height or non-adjustable height greater than 1200 mm
Note 2: Adjustment of height, position and oscillation can be possible.
[Source: IEC 60879:2019, 3.7, modified – Note 2 to entry added]
3.107
wall bracket fan
comfort fan for mounting on the wall
[Source: IEC 60879:2019, 3.8]
3.108
ceiling bracket fan
comfort fan for mounting on the ceiling
[Source: IEC 60879:2019, 3.9]
3.109
louver fan
comfort fan having a moving louvre which provides a continuously changing multi-directional air flow
[Source: IEC 60879:2019, 3.10]
3.110
ventilating fan
fan intended to displace air either from one side of a partition to the other, or within a duct installed either on the fan inlet or on the fan outlet or both
[Source: IEC 60665:2018, 3.2]
3.111
partition ventilating fan
type A ventilating fan
ventilating fan installed in or upon the aperture of a partition in order to displace air from one side of the partition to the other side, both the sides being free spaces
[Source: IEC 60665:2008, 3.3]
3.112
free inlet partition ventilating fan
type B ventilating fan
ventilating fan with a direct inlet from free space and with ducted outlet
[Source: IEC 60665:2018, 3.4]
3.113
free outlet partition ventilating fan
type C ventilating fan
ventilating fan with ducted inlet, and with direct outlet to free space
[Source: IEC 60665:2018, 3.5]
3.114
fully ducted ventilating fan
type D ventilating fan
ventilating fan with ducted inlet and ducted outlet
[Source: IEC 60665:2018, 3.6]
3.115
floor fan
fan having two or more blades and height adjuster for worktable or ground mounting, driven by a motor for blades to rotate and intended for use with free inlet and outlet of air
3.116
comfort fan
fans that are mainly designed to generate air flow around or on a part of the human body to make the human body feel cool and comfortable, including fans that can perform additional functions such as lighting
Note: Comfort fans are also referred to as "fans" in this part.
[Source: IEC 60879:2019, 3.1]
4 Measurement methods and acoustical environments
This clause of GB/T 4214.1-2017 is applicable except as follows:
4.2 Direct method
Addition:
If pure tone components are present in the noise emitted by the Source, the estimated standard deviation of the measured sound pressure levels in the special reverberation room may increase. In such cases, additional microphone positions or Source positions may be necessary, such as those specified in GB/T 6881.3-2002.
4.3 Comparison method
Addition:
If pure tone components are present in the noise emitted by the Source, the estimated standard deviation of the measured sound pressure levels in the hard-walled test room or in the special reverberation room may increase. In such cases, additional microphone positions or Source positions may be necessary, such as those specified in GB/T 6881.2-2017 or GB/T 6881.3-2002.
Contents of GB/T 4214.9-2021
Foreword I
1 Scope and object
2 Normative references
3 Terms and definitions
4 Measurement methods and acoustical environments
5 Instrumentation
6 Operation and location of appliances under test
7 Measurement of sound pressure levels
8 Calculation of sound pressure and sound power levels
9 Information to be recorded
10 Information to be reported
Appendixes
Annex B (Normative) Test enclosure
Bibliography
