The general requirements of the GB/T 4214 series standards apply to household and similar electrical appliances powered by the power grid or batteries, including their accessories and components. If not specifically specified in the special requirements of the GB/T 4214 series standards, similar uses can be understood as being used under conditions similar to home environments, such as in small hotels, coffee shops, tea rooms, hotels, barbershops, laundries, etc. This section does not apply to: - appliances, equipment, or machines designed specifically for industrial or professional purposes; - appliances that are part of the overall structure of buildings or facilities installed on buildings, such as heating or ventilation devices (excluding household fans, stoves, and movable vertical heating appliances), centralized heating oil boilers, water pumps used in water supply and drainage systems, etc; Note: The air conditioner products for household and similar purposes covered by GB/T 7725 belong to the scope of this part A separate electric motor or generator; - Equipment used outdoors. Different types of noise are classified in GB/T 19052-2003. The methods listed in GB/T 3767-1996 are applicable to the measurement of various types of noise emitted by household appliances. The methods listed in GB/T 6881,. 2-2002 and GB/T 6881.3-2002 are applicable to various types of noise other than pulse noise. This will be taken into account when formulating special requirements. The methods listed in GB/T 3767-1996 for the size of sound sources are applicable to any size of sound source. The limitations on the size of sound sources are given in 1.3 of GB/T 6881.2-2002 and GB/T 6881.3-2002. This will be taken into account when formulating special requirements
Function of testing report:
1. Project bidding: Issue authoritative third-party CMA/CNAS qualification report
2. Online e-commerce platform entry: Quality inspection report recognized by major e-commerce platforms 3. Used as a sales report: issuing legally effective testing reports to make consumers more confident 4. Papers and research: Provide professional personalized testing needs 5. Judicial services: providing scientific, fair, and accurate testing data 6. Industrial problem diagnosis: Verify the troubleshooting and correction of industrial production problemsBaijian and testing process:
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
2. Fully cover the laboratory and allocate localized testing nearby3. Engineers provide one-on-one services to make testing more accurate
4. Free initial testing, with no testing fees charged
5. Self service order delivery for free on-site sampling
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 China