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Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 4822-2023: Sawn timber inspection Status: Valid GB/T 4822: Historical versions
Basic dataStandard ID: GB/T 4822-2023 (GB/T4822-2023)Description (Translated English): Sawn timber inspection Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: B69 Classification of International Standard: 79.040 Word Count Estimation: 10,114 Date of Issue: 2023-12-28 Date of Implementation: 2024-07-01 Older Standard (superseded by this standard): GB/T 4822-2015 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB/T 4822-2023: Sawn timber inspection---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.ICS 79:040 CCSB69 National Standards of People's Republic of China Replace GB/T 4822-2015 Saw timber inspection Published on 2023-12-28 2024-07-01 Implementation State Administration for Market Regulation Released by the National Standardization Administration Committee ForewordThis document complies with the provisions of GB/T 1:1-2020 "Standardization Work Guidelines Part 1: Structure and Drafting Rules of Standardization Documents" Drafting: This document replaces GB/T 4822-2015 "Sawn Timber Inspection": Compared with GB/T 4822-2015, except for structural adjustments and editorial changes In addition, the main technical changes are as follows: ---Changed terms and definitions (see Chapter 3, Chapter 3 of the:2015 edition); ---Deleted the volume calculation content in the general requirements for "dimensional inspection" (see 4:1:4 of the:2015 version); ---Changed the width inspection requirements for parallel whole-edge sawn timber (see 4:3:1,:2015 version of 4:3:1); ---Changed the sawn timber thickness inspection requirements (see 4:4:1,:2015 version of 4:4:1); ---Changed the set inspection requirements (see 5:2,:2015 version of 5:2); ---Change "blunt edge" to "missing edge", and add "sharp edge" inspection requirements (see 5:6,:2015 version of 5:6); ---Added inspection requirements for sawing defects, resin pockets, distortion, and diamond deformation (see 5:7, 5:9, 5:11, and 5:12); ---Added accuracy requirements for inspection tools (see 6:3); ---Added the "spraying" marking method of the grade mark (see 7:1), and changed the special sawn timber symbol in the sawn timber grade symbol (see Table 1,:2015 version of Table 1); ---Added volume calculation (see Chapter 8): Please note that some content in this document may be subject to patents: The publisher of this document assumes no responsibility for identifying patents: This document is proposed by the State Forestry and Grassland Administration: This document is under the jurisdiction of the National Timber Standardization Technical Committee (SAC/TC41): This document was drafted by: Heilongjiang Academy of Forestry Sciences, Zhejiang Anfengju Home Furnishing Co:, Ltd:, Heilongjiang Wood Science Research Institute, Dehua Bunny Decoration New Materials Co:, Ltd:, Sichuan Qingcheng Machinery Co:, Ltd:, Jiangshan Oppei Door Industry Co:, Ltd:, Jiusheng Flooring Co:, Ltd: Company, Linshu County Industrial and Information Industry Development Center of Shandong Province, Forestry Science Research Institute of Guangxi Zhuang Autonomous Region, Forest Plants of Heilongjiang Province Park, Guangxi Gaofeng Guishan Artificial Panel Co:, Ltd:, Guilin Maojia Crafts Co:, Ltd:, Huzhou Inspection and Testing Center, Hongmu Fang Home Technology (Huzhou) Co:, Ltd:, Heilongjiang Weihe Forestry Bureau Co:, Ltd:, Heilongjiang Dongfanghong Forestry Bureau Co:, Ltd:, Heilongjiang University of Science and Technology, Shanghai Jianke Inspection Co:, Ltd: The main drafters of this document: Zhang Hua, He Jincun, Zhang Jiabin, Li Gang, Chen Songwu, Yang Xiaolong, Xu Rui, Ren Tuo, Teng Keyong, Mao Weiliang, Zhai Fenghui, Zhao Kangjun, Zhang Jing, Zheng Tuoyu, Sun Longxiang, Shan Zhichao, Zhuang Qian, Dong Renguo, Zhang Chao, Han Chengdong, Zhang Qingpeng, Zhou Zhifang, Li Xiaoyan, Zhang Hui, Shen Juanxia, Pan Bo, Ren Binbin: The previous versions of this document and the documents it replaces are as follows: ---First published in 1984 as GB 4822:1-1984; ---In the first revision in:1999, it incorporated GB 4822:2-1984 "Sawn Timber Inspection Dimensions and Quantities" and GB 4822:3-1984 Contents of "Sawn Timber Inspection Grade Assessment"; ---Second revision in:2015; ---This is the third revision: Saw timber inspection1 ScopeThis document describes the dimensional inspection, material inspection, inspection tools, grade markings and volume calculations for sawn lumber inspection: This document is applicable to the inspection of sawn timber in the production and circulation fields:2 Normative reference documentsThe contents of the following documents constitute essential provisions of this document through normative references in the text: Among them, the dated quotations For undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to this document: GB/T 449 sawn timber volume table GB/T 4823 Defects in sawn timber GB/T 11917 Material manufacturing process terminology GB/T 36202 Sawn timber inspection terminology3 Terms and definitionsThe terms and definitions defined in GB/T 4823, GB/T 11917 and GB/T 36202 apply to this document:4 Dimensional inspection4:1 General requirements 4:1:1 Dimensional inspection of sawn timber refers to the inspection of the entire edge of sawn timber: 4:1:2 The size of sawn timber should be calculated and evaluated based on the size inspected at the time of transaction: 4:1:3 The upgrade and tolerance of sawn timber length, width and thickness shall be implemented in accordance with the sawn timber product standards: 4:2 Length measurement 4:2:1 The length measurement of sawn timber is to measure the shortest distance between the two end faces along the length direction: 4:2:2 The length of sawn timber is measured in meters, measured to cm, and any length less than 1cm is rounded off: 4:2:3 If the actual length of the sawn timber is less than the gauge length, but does not exceed the lower deviation of the length, it will still be calculated based on the gauge length; if it exceeds the lower deviation of the length, press Calculation of the first-level measuring ruler length: 4:3 Width inspection 4:3:1 The width measurement of parallel whole-edge sawn timber is to measure the narrowest part of any part without blunt edges within the length of the gauge ruler, leaving 15cm at both ends: width: 4:3:2 The width inspection of trapezoidal whole-edge sawn timber is to measure the width of the sawn timber at half the length of the timber: 4:3:3 The width of sawn timber is measured in mm, and any less than 1mm is rounded off: 4:3:4 If the actual width of the sawn timber is less than the gauge width, but does not exceed the lower deviation of the width, it will still be calculated based on the gauge width; if it exceeds the lower deviation of the width, press ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 4822-2023_English be delivered?Answer: Upon your order, we will start to translate GB/T 4822-2023_English as soon as possible, and keep you informed of the progress. 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Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.Question 5: Should I purchase the latest version GB/T 4822-2023?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 4822-2023 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically. |
