YD/T 1644.2-2011Human exposure to radio frequency fields from hand-held and body-mounted wireless communication devices-human models, instrumentation, and procedures. Part 2: Procedure to determine the specific absorption rate(SAR) for wireless communication devices used (English PDF)
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Issued by
Ministry of Industry Information Technology, the People’s Republic of China
Level / Type
National · Recommended
Issue date
December 11, 2006
Implementation date
January 1, 2006
Scope
YD/T 1644.2-2011 (Human exposure to radio frequency fields from hand-held and body-mounted wireless communication devices-human models, instrumentation, and procedures. Part 2: Procedure to determine the specific absorption rate(SAR) for wireless communication devices used) is available as an English-translated PDF.
YD/T 1644.2-2011 - This Standard defines the technical requirements and test methods for the adaptability of the environment and mechanical stress for mobile telecommunication handsets.
It is applicable for mobile telecommunication handset and it is also the reference for other mobile telecommunication terminals in addition to the handset.
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Document preview — YD/T 1644.2-2011
National Standard of the People's Republic of China
Issued by: Ministry of Industry Information Technology, the People’s Republic of China
Contents
- Preface...3
- 1 Scope...5
- 2 Quoted Standards...5
- 3 Technical requirements...6
- 3.1 Environment Test...6
- 3.2 Mechanical stress test...7
- 4 Test methods...9
- 4.1 Environment test methods...9
- 4.2 Mechanical stress test methods...12
Preface
This Standard is developed by referencing the following environmental testing
specifications for electric and electronic products.
1. GB/T 2423.1 Environmental Test Specification for Electric and Electronic Products
- Part 2.Test method Test A. Low Temperature
2. GB/T 2423.2 Environmental Test Specification for Electric and Electronic Products
- Part 2.Test method Test B. High Temperature
3. GB/T 2423.3 Basic Environmental Test Specification for Electrical and Electronic
Products - Test Ca. Constant-Damp-and-Heat Test Method
4. GB/T 2423.5 Environmental Test Specification for Electric and Electronic Products
- Part 2.Test method Test Ea and Guide Rule. Shock
5. GB/T 2423.6 Environmental Test Specification for Electric and Electronic Products
- Part 2.Test Method Test Eb and Guide Rule. Collision
6. GB/T 2423.8 Environmental testing for electric and electronic products - Part 2.
Test method Test Ed. free fall
7. GB/T 2423.11 Environmental Test Specification for Electric and Electronic Products -
Part 2.Test Method Test Fd. Broadband Random Vibration --General Requirements
8. GB/T 2423.13 Environmental Test Specification for Electric and Electronic Products - Part
2 Test Method Test Fdb. Broadband Random Vibration --Reproductivity
9. GB/T 2423.18 Environmental Test Specification for Electric and Electronic Products
- Part 2.Test Method Test Kb. Salt Frog, Alternating (sodium chloride solution)
10 GB/T 2423.22 Basic environmental testing specification for electric and electronic
products - Part 2.Test method Test N. temperature change
11 GB/T 2423.43 Environmental testing for electric and electronic products - Part 2.Test
method - Mounting of components, equipment and other articles for dynamic tests including
shock (Ea), bump (Eb), vibration (Fc and Fd) and steady-state acceleration (Ca) and guidance
12 GB/T 2423.44 Basic Environmental Test Specification for Electric and Electronic
Products - Part 2.Test Method Test Eg. Spring Hammer for Knock Test
This Standard is the definition of the reliability for China Mobile Communication
Handset. If the reliability-related contents in the original published specification are different
from that in this specification, all are based on this Standard.
This Standard is proposed and managed by China Communications Standards
Association (CCSA).
This Standard is drafted by. China MIIT Telecommunication Institute.
This Standard is written by. Yuan Weijun and He Guili.
Technical Requirement and Test Method for Reliability of Mobile
Telecommunication Handset
1 Scope
This Standard defines the technical requirements and test methods for the adaptability of the
environment and mechanical stress for mobile telecommunication handsets.
It is applicable for mobile telecommunication handset and it is also the reference for other
mobile telecommunication terminals in addition to the handset.
2 Quoted Standards
The following standards contribute the stipulations of this Standard after being quoted. All
the revision versions (excluding correction version) of the quoted standards specified with date are
not applicable for the document. Users are encouraged to explore the possibility to use the latest
version of the following standards. The latest versions of the quoted documents without date
specified are applicable to the standard.
GB/T 2421 Environmental Test Specification for Electrical and Electronic Products
Part 1.General
GB/T 2423.1 Environmental Test Specification for Electric and Electronic Products -
Part 2.Test method Test A. Low Temperature
GB/T 2423.2 Environmental Test Specification for Electric and Electronic Products -
Part 2.Test method Test B. High Temperature
GB/T 2423.3 Basic Environmental Test Specification for Electrical and Electronic
Products - Test Ca. Constant-Damp-and-Heat Test Method
GB/T 2423.5 Environmental Test Specification for Electric and Electronic Products -
Part 2.Test method Test Ea and Guide Rule. Shock
GB/T 2423.6 Environmental Test Specification for Electric and Electronic Products -
Part 2.Test Method Test Eb and Guide Rule. Collision
GB/T 2423.8 Environmental testing for electric and electronic products - Part 2.Test
method Test Ed. free fall
GB/T 2423.11 Environmental Test Specification for Electric and Electronic Products - Part 2.
Test Method Test Fd. Broadband Random Vibration - General Requirements
GB/T 2423.13 Environmental Test Specification for Electric and Electronic Products - Part 2.
Test Method Test Fdb. Broadband Random Vibration - Reproductivity
GB/T 2423.18 Environmental Test Specification for Electric and Electronic Products -
Part 2.Test Method Test Kb. Salt Frog, Alternating (sodium chloride solution)
GB/T2423.22 Environmental Test Specification for Electric and Electronic Products -
Part 2.Test Method Test N. temperature change
GB/T 2423.43 Environmental testing for electric and electronic products - Part 2.Test
method - Mounting of components, equipment and other articles for dynamic tests including shock
(Ea), bump (Eb), vibration (Fc and Fd) and steady-state acceleration (Ca) and guidance
GB/T 2423.44 Environmental Test Specification for Electric and Electronic Products -
Part 2.Test method Test Eg. Spring Hammer for Knock Test
GB/T 2424.10 Environmental Test Specification for Electrical and Electronic Products –
General Rule for Atmospheric Corrosion Acceleration Test
GB/T 9286-1998 Paints and Varnishes – Cross-cut test for films
3 Technical requirements
3.1 Environment Test
3.1.1 Low temperature
3.1.1.1 Low temperature storage
Mobile telecommunication handset in power-off state is stored by (-40±3)u00b0C low temperature
for 16h. After the normal atmospheric condition is recovered, the RF performance, functions,
outlook and assembly shall comply with the related requirements.
3.1.1.2 Low temperature operation
After the mobile telecommunication handset in power-on state is tested by (-10±3)u00b0C low
temperature for 2h, the RF performance shall comply with the related requirements.
3.1.2 High Temperature
3.1.2.1 High temperature storage
Mobile telecommunication handset in power-off state is stored by (55±3)u00b0C high temperature
for 16h. After the normal atmospheric condition is recovered, the RF performance, functions,
outlook and assembly shall comply with the related requirements.
3.1.2.2 High temperature operation
After the mobile telecommunication handset in power-on state is tested by (55±3)u00b0C low
temperature for 2h, the RF performance shall comply with the related requirements.
3.1.3 Temperature shock
After the mobile telecommunication handset in power-off state is shocked by
(30±3)u00b0C/(-25±3)u00b0C temperature, the functions, outlook and assembly shall comply with the
related requirements.
3.1.4 Shock
After the mobile telecommunication handset in power-off state is shocked by half-sine pulse
with 300m/s2 peak acceleration and 18ms pulse duration for 18 times, the functions, outlook and
assembly shall comply with the related requirements.
3.1.5 Collision
After the mobile telecommunication handset in power-off state is crashed by the pulse with
250m/s2 peak acceleration and 6ms pulse duration for 3000 times, the functions, outlook and
assembly shall comply with the related requirements.
a) The test method is performed based on the related definitions in GB/T 2423.3.
b) Conditional test. Test sample is put into the chamber based on the normal state. It is
installed with the matched battery with power-off. Power on and increase the humidity chamber
to 40u00b0C. Then wet it and mix the air in the chamber. When the temperature reaches to the required
one and the relative humidity is 90% ~ 95%, keep it for 48h.
c) After the conditional test, detect RF performance finally.
4.1.8 Salt frog test methods
a) The test method is performed based on the related definitions in GB/T 2423.18.
b) Conditional test. Place the unpacked test sample without the matched battery in salt frog
chamber, and spray the frog for 2 hours in (15 ~ 35)u00b0C, the pH value is within 6.5~7.2(when the
temperature is 20u00b0C±2u00b0C), and the density of sodium chloride solution is (50±1)%. After the
completion of frog spraying, move the test sampl...
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 12 pages — is available in the English PDF.
Referenced standards
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