Except for the following, Chapter 1 of GB/T 4793.1 applies to both scope and purpose. 1.1.1 Substitution of equipment to which this standard applies: Replace the first paragraph with the following: This group of safety standards is mainly intended for the product safety standards of the relevant products mentioned in the scope. According to the principles specified in IEC Guide 104 and ISO/IEC Guide 51, the technical committee may also use this standard when preparing relevant publications for products similar to those mentioned in the scope of this standard. This standard specifies safety requirements for electrical equipment and its accessories (categories a to c), regardless of their intended use, as long as the equipment contains one or more of the following characteristics: a refrigeration system that is affected or affected by an integrated heating function, resulting in additional and/or more serious hazards compared to a single heating or cooling system- In predetermined applications, the material to be processed will introduce significant heat into the refrigeration system, resulting in additional and/or more serious hazards compared to operating in the maximum rated environment- The irradiation function of the material to be processed can create additional hazards- Placing the material to be processed in high humidity, carbon dioxide, salt mist, or other substances may pose additional hazards- Mechanical movement creates additional hazards. Provide conditions for operators to enter the operating area to load or unload materials to be processed
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