GB 40070-2021 English PDFUS$299.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB 40070-2021: Hygienic requirements of study products for myopia prevention and control in children and adolescents Status: Valid
Basic dataStandard ID: GB 40070-2021 (GB40070-2021)Description (Translated English): Hygienic requirements of study products for myopia prevention and control in children and adolescents Sector / Industry: National Standard Classification of Chinese Standard: C56 Word Count Estimation: 16,168 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB 40070-2021: Hygienic requirements of study products for myopia prevention and control in children and adolescents---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order. Hygienic requirements of study products for myopia prevention and control in children and adolescents ICS 13.100 C56 National Standards of People's Republic of China Hygienic requirements for myopia prevention and control of school supplies for children and adolescents Released on 2021-02-20 2022-03-01 implementation State Administration of Market Supervision and Administration Issued by the National Standardization Management Committee Table of contentsForeword Ⅲ 1 Scope 1 2 Normative references 1 3 Terms and definitions 2 4 Hygienic requirements for textbooks 3 5 Hygienic requirements for teaching supplementary materials and learning magazines 4 6 Hygienic requirements for schoolwork books 4 7 Hygienic requirements for examination papers 5 8 Hygienic requirements for learning newspapers 5 9 Hygienic Requirements for Reading Materials for Preschool Children 5 10 Hygienic requirements for lighting fixtures in general classrooms 5 11 Hygienic requirements for reading and writing desk lamps 6 12 Teaching multimedia hygiene requirements 6 Appendix A (normative appendix) textbooks, teaching supplementary materials, learning magazines, schoolwork books, examination papers, learning materials for preschool children Detection methods for paper, printing quality, grid size, font size and line space 8 Appendix B (normative appendix) Test method of printing quality of learning newspaper 10 Appendix C (Normative Appendix) Testing methods for the performance of general classroom lighting and reading and writing desk lamps 11 Appendix D (Normative Appendix) Testing methods for the performance of teaching multimedia products 12 Reference 13ForewordThis standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard was proposed and managed by the National Health Commission of the People's Republic of China. Hygienic requirements for myopia prevention and control of school supplies for children and adolescents1 ScopeThis standard specifies textbooks, teaching supplementary materials, study magazines, schoolwork books, examination papers, study newspapers, and study materials related to the prevention and control of myopia. Reading materials for preschool children, as well as general classroom lighting, reading and writing homework lamps and teaching multimedia and other children and adolescents’ school supplies. Health requirements. This standard applies to children produced, produced, operated and provided by enterprises, primary and secondary schools, secondary vocational schools, kindergartens and off-campus training institutions School supplies for teenagers (including textbooks, teaching supplementary materials, study magazines, schoolwork books, examination papers, study newspapers, preschool children Reading materials, general classroom lighting, reading and writing desk lamps, teaching multimedia products, etc.). This standard does not apply to lighting fixtures for dedicated classrooms and public teaching rooms.2 Normative referencesThe following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this article Pieces. For undated reference documents, the latest version (including all amendments) is applicable to this document. GB/T 450 Paper and cardboard sample collection and the determination of the longitudinal and transverse directions, front and back sides of the sample GB/T 451.2 Determination of the basis weight of paper and cardboard GB/T 456 Determination of smoothness of paper and paperboard (Buick method) GB/T 2900.65 Electrical engineering terminology lighting GB/T 4687 Paper, paperboard, pulp and related terms GB 7000.1 Lamps Part 1.General requirements and tests GB/T 7922 Method for measuring the color of lighting sources GB/T 7974 Determination of blue light diffuse reflectance factor D65 brightness of paper, paperboard and pulp (diffuse/vertical method, outdoor daylight conditions) GB/T 9473 performance requirements for reading and writing desk lamps GB/T 9851.1 Printing Technology Terminology Part 1.Basic Terminology GB/T 10739 Standard atmospheric conditions for handling and testing of paper, paperboard and pulp samples GB/T 13962 Terminology for Optical Instruments GB/T 17227 Hygienic Requirements for Textbooks for Primary and Secondary School Students GB/T 17934.1 Printing technology, mesh color separation, proof sheet and printed product process control part 1.parameters and testing method The application of GB/T 18722 printing technology reflection density measurement and chromaticity measurement in printing process control GB/T 18910.11 Liquid crystal display devices Part 1-1.Terms and symbols GB/T 18910.61 Liquid Crystal Display Device Part 6-1.Test Method for Liquid Crystal Display Device Photoelectric Parameters GB/T 19437.Spectral measurement and chromaticity calculation of printed images in printing technology GB/T 23649 Optical, geometric and metrological requirements for reflection densitometers for printing technology process control printing GB/T 31831 Technical requirements for LED indoor lighting applications GB/T 36979 LED product spatial color distribution measurement method GB 50034 Architectural Lighting Design Standard CY/T 3-color evaluation of lighting and observation conditions ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB 40070-2021_English be delivered?Answer: Upon your order, we will start to translate GB 40070-2021_English as soon as possible, and keep you informed of the progress. 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