List of relevant testing items of 100 inspectionsThird-party testing institutions support sample sending and door-to-door testing, mainly providing sample testing services for companies, enterprises, public institutions, individual businesses, and university scientific research, and reporting CMA/CNAS/CAL qualifications, which are true and effective.
Report qualification: CNAS, CMA, CAL, etc.
Testing costs: Quotation sample size according to customer needs and experimental
complexity: Choose to send samples or come to the door according to the sample size
Security Testing Service Classification Undefined Sample Name Car GPS Navigation System Testing Project Safety Testing Standard "General Specification for Car GPS Navigation System" GB/T19392-2003 1. Radio Detection Method: Find a channel with very good signal, and then move around various positions of the vehicle continuously. When the radio approaches the GPS locator, it will receive signal interference and emit a harsh sound. 2. Mobile phone detection method: Connect the phone to the headphones, then dial a certain contact number, and then move around the various positions of the vehicle continuously. When the phone approaches the GPS locator, it will receive signal interference and emit a harsh sound. 3. Shield method: Another method is that there are many online sellers of shield devices, claiming that using the interference function of the shield can affect the reception of signals from on-board GPS positioning devices, thus unable to achieve precise positioning purposes. 4. Device activation method (latest technology): In a classified shielding room, a dedicated device is used to forcibly activate the GPS tracker in the car, and then the activated signal is used to quickly locate the GPS tracker, commonly known as "stable, accurate, and ruthless"
The content of the above article is a partial list. For more testing needs and details, please consult the free online consultant of the institution: 152 0173 3840 (phone and WeChat), conducting testing on over a hundred inspection websites - issuing authoritative testing reports has legal effect
Function of testing report:
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1. Telephone communication and confirmation of requirements
2. Recommend solutions and confirm quotations 3. Mail samples and arrange testing 4. Progress tracking and result feedback 5. Provide reports and after-sales service 6. If urgent or priority processing is requiredTesting and testing characteristics:
1. The testing industry is fully covered, meeting different testing needs
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6. Short cycle, low cost, and attentive service 7. Possess authoritative qualifications such as CMA, CNAS, CAL, etc 8. The testing report is authoritative and effective, and is generally used in ChinaBaijian is a comprehensive testing service platform, bringing together many CNAS, CMA, CAL and other qualification testing institutions all over the country.