GB 21288-2007 (GB21288-2007)

Standard ID	Contents [version]	USD	STEP2	[PDF] delivered in	Standard Title (Description)	Related Standard	Status	PDF
GB 21288-2007	English	159	Add to Cart	3 days [Need to translate]	Limits for human local exposure to electromagnetic fields emitted by mobile phones	GB 21288-2007	Valid	GB 21288-2007

GB 21288-2007
Limits for human local exposure to electromagnetic fields emitted by mobile phones
ICS 13.280
C71
National Standards of People's Republic of China
Local mobile phone electromagnetic radiation exposure limits
Posted 2007-11-14
2008-08-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
All the technical contents of this standard is mandatory.
This standard by the national human exposure related to electric, magnetic and electromagnetic field evaluation method Standardization Technical Working Group and centralized.
This standard was drafted. Chinese Center for Disease Control Environmental Health and Related Product Safety, China Institute of Metrology, information
Telecommunications Research Institute of Ministry of Industry and so on.
The main drafters of this standard. Cao Zhaojin, Tengjun Heng, Wang Hongbo, Xupei Ji.
introduction
When using a mobile phone near the human head, the electromagnetic radiation exposure may affect health. To protect public health, especially the development of
This standard.
Local mobile phone electromagnetic radiation exposure limits
1 Scope
This standard specifies the use of close human head, can emit electromagnetic waves mobile phone electromagnetic radiation exposure limits public head.
This standard applies to all information of public human head close to the transmitter frequency used in the 30MHz ~ 6GHz range of mobile phones.
2 Terms and definitions
The following terms and definitions apply to this standard.
2.1
At all ages and for different health conditions under uncontrolled conditions, and does not realize that exposure occurred and build their physical
To harm, can not effectively take protective measures of personal exposure.
2.2
Local body surface exposure to electromagnetic fields exposure.
2.3
a) energy in the form of electromagnetic waves emitted by the source into the space phenomena.
b) energy form of electromagnetic waves propagating in space.
NOTE. "Electromagnetic radiation" meaning of the term may also be extended, the phenomenon of electromagnetic induction are also included.
2.4
SAR
dW
SAR unit is W/kg.
NOTE. SAR can be calculated as.
SAR = σE
(2)
(3)
Where.
E --- RMS tissue electric field strength, V/m;
Conductivity σ --- body tissue, S/m;
Density ρ --- body tissues, kg/m
3;
dT
The rate of temperature change --- starting time of the body within the organization, K/s.
3 exposure limit
10g any biological tissue, any continuous 6min average specific absorption rate (SAR) value should not exceed 2.0W/kg.
4 labeling requirements
All information of public use close to the body of the head of a mobile phone should identify the following.
4.1 in the product specification shall be indicated in bold. "This product electromagnetic radiation specific absorption rate (SAR) a maximum of × × W/kg, in line.
The requirements of national standard GB 21288-2007. "And encouraged indicated the electromagnetic radiation on the product packaging Specific Absorption Rate (SAR) maximum.
NOTE. × number from 0 to 9.
4.2 in the product specification shall be marked with cardiac pacemakers, hearing aids, and other matters ear vortex users when using this product should pay attention to the implant.