1 Scope
This standard specifies the energy efficiency grades, test methods and inspection rules of electric hairdryers.
This standard is applicable to handheld electric hairdryers with electric heating elements at a rated input power of 2.2kW or below and combined marcel wavers with non-electrical working heads based on electric hairdryers.
It does not apply to electric hairdryers for children and special purposes.
2 Normative References
The following documents for the application of this document are essential. For dated reference, only the edition cited applies. For undated references, the latest edition of the normative document (including any amendments) applies.
QB/T 1876-2010 Household and Similar Hair Care Appliance
ISO 2267:1986 Surface Active Agents - Evaluation of Certain Effects of Laundering - Methods of Preparation and Use of Unsoiled Cotton Control Cloth
3 Terminologies and Definitions
For the purposes of this document, the following terminologies and definitions apply.
3.1
Drying efficiency
η
The ratio of measured dewatering amount to consumed power by electric hairdryers under the testing conditions specified in this standard.
Note: It is expressed in g/(kW•h).
Foreword i
1 Scope
2 Normative References
3 Terminologies and Definitions
4 Energy Efficiency Grades
5 Test Methods
6 Inspection Rules
1 Scope
This standard specifies the energy efficiency grades, test methods and inspection rules of electric hairdryers.
This standard is applicable to handheld electric hairdryers with electric heating elements at a rated input power of 2.2kW or below and combined marcel wavers with non-electrical working heads based on electric hairdryers.
It does not apply to electric hairdryers for children and special purposes.
2 Normative References
The following documents for the application of this document are essential. For dated reference, only the edition cited applies. For undated references, the latest edition of the normative document (including any amendments) applies.
QB/T 1876-2010 Household and Similar Hair Care Appliance
ISO 2267:1986 Surface Active Agents - Evaluation of Certain Effects of Laundering - Methods of Preparation and Use of Unsoiled Cotton Control Cloth
3 Terminologies and Definitions
For the purposes of this document, the following terminologies and definitions apply.
3.1
Drying efficiency
η
The ratio of measured dewatering amount to consumed power by electric hairdryers under the testing conditions specified in this standard.
Note: It is expressed in g/(kW•h).
Contents of QB/T 4699-2014
Foreword i
1 Scope
2 Normative References
3 Terminologies and Definitions
4 Energy Efficiency Grades
5 Test Methods
6 Inspection Rules
