This standard specifies the environmental testing methods for digital television reception and display equipment. This standard applies to digital television reception and display equipment as a basis for evaluating its environmental adaptability during design, production, and testing processes. This standard is drafted in accordance with the rules given in GB/T 1.1-2009 "Guidelines for Standardization Work Part 1: Structure and Writing of Standards". This standard replaces and abolishes SJ/T 11326-2006 "Environmental Testing Methods for Digital Television Reception and Display Equipment". Compared with SJ/T 11326-2006, the main technical changes are as follows: - The high-temperature load test conditions have been modified (see 6.1.1.1, 2006 version 6.1.1.1)—— Revised high temperature storage test conditions (see 6.1.2.1, 2006 edition 6.1.2.1>) - Revised constant damp heat test conditions (see 6.1.3.1, 2006 edition 6.1.3.1); - Added high temperature and high humidity load test (see 6.1.4.1)—— Modified the low-temperature load test conditions (see 6.1.5.1, 2006 version 6.1.4.1)—— Modified the low-temperature storage test conditions (see 6.1.6.1, 2006 version 6.1.5.1); Revised the labeling content of the swept frequency vibration (sine) test (see 6.2.1.1, 2006 version 6.2.1.1)—— Revised the requirements for free fall test (see 6.2.3, 2006 version 6.2.3)
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