This standard specifies the basic types, technical requirements, test methods, inspection, marking, packaging, transportation, and storage of reflection and transmission projection screens. This standard applies to various types of films, slides, projection, video recording, and video projection screens, and is not applicable to other special purpose screens. The clauses in the following documents are referred to as provisions of this standard through normative references. For dated references, all subsequent amendments (excluding corrected content) or revisions are not applicable to this standard. However, it is encouraged for all parties who have reached agreements based on this standard to investigate whether the latest versions of these documents can be used. For undated references, the latest version applies to this standard. GB/T 2406.1-2008 Plastics - Determination of Burning Behavior by Oxygen Index Method - Part 1: Guidelines (IS0 4589-11996, IDT) - GB/T 2406.2-2008 Plastics - Determination of Burning Behavior by Oxygen Index Method - Part 2: Room Temperature Test (ISO 4589-21996, IDT) GB/T 2408-2008 Plastics - Determination of Burning Performance - Horizontal and Vertical Methods GB/T5455-1997 Textiles - Burning Performance Test - Vertical Method GB/T 18401-2010 National Technical Code for Basic Safety of Textile Products GB 50222-1995 Fire Protection Code for Design of Building Interior Decoration JB/T 6839-2002 Classification of Projection Screens JB/T 7809 Characteristics, Parameters and Measurement Methods of Projection Screens JB/T 9329 Basic Environmental Conditions and Test Methods for Transportation, Transportation and Storage of Instruments and Meters
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