GB/T 155-2017 English PDFUS$519.00 · In stock
Delivery: <= 5 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 155-2017: Defects in logs Status: Valid GB/T 155: Historical versions
Basic dataStandard ID: GB/T 155-2017 (GB/T155-2017)Description (Translated English): Defects in logs Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: B68 Classification of International Standard: 79.040 Word Count Estimation: 26,277 Date of Issue: 2017-12-29 Date of Implementation: 2018-07-01 Older Standard (superseded by this standard): GB/T 155-2006 Regulation (derived from): National Standards Bulletin 2017 No. 32 Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China GB/T 155-2017: Defects in logs---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.Defects in logs ICS 79.040 B68 National Standards of People's Republic of China Replacing GB/T 155-2006 Log defects 2017-12-29 Posted 2018-07-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China China National Standardization Administration released Directory Preface Ⅰ 1 Scope 1 2 Normative references 1 3 Terms and definitions 1 4 Categories 11 Appendix A (informative) Wood defects on the material 14 Index 18 ForewordThis standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard replaces GB/T 155-2006 "wood defects." Compared with GB/T 155-2006, the main technical changes are as follows. --- The following terms and definitions have been added. Ring festival, loose section, cluster festival, wheel crack, arc crack, chaos pattern, fungus discoloration, white rot, brown rot, soft Rot, chisel wormhole, wear and fat harvesting. --- Modify, add the terms of the original standard inaccurate or improper interpretation of the terms and definitions. Asphyxia wood, bark stripping, living Festival, dead section, leakage Festival, Surface Festival, Hidden Festival, End crack, Single crack, Ring crack, Long crack, Freeze crack and Shock crack, Penetrating crack, Root hypertrophy, Pocket, Sharpening, Twist Turn the grain, stress wood, should be pressed wood, should pull wood, double heart or heartwood, tree bag, tree tumor, false heartwood, containing sapwood, heartwood discoloration and streaks, Sapwood discoloration, sapwood stains, sapwood decay, heartwood decay, insect damage, bird's eye, mechanical damage, sawing, pumping heart, dry defects, wood Structural defects, defects and injuries caused by fungi. --- Removed the original standard in the following terms and definitions. Visible defects, lobed, split, surface pest, shallow pest, deep pest, tree Injured, torn and cut. --- Modify some logs defects in English Notes. --- Classification of defects has been adjusted knot according to the level of students, materials, growth sites and distribution of the classification; cracks into the crack and Rift, ring cracking and arc cracking included in the split; the tree bag from the dry defects adjusted to the structural defects of wood, and include random pattern In; fungal defects caused by fungal discoloration and decay into two categories, fungal discoloration of asphyxia browning in the sapwood discoloration, rot Rotten increase in accordance with the type and nature of divided into white rot, brown rot and soft rot; injury increased chisel hole; mechanical injury increased fat harvest injury, And the wind folding wood redraw into a category. --- Remove the test and calculation methods. --- Remove GB/T 155-2006 Appendix A, Appendix B. Added informative Appendix A. This standard proposed by the State Forestry Administration. This standard by the National Wood Standardization Technical Committee (SAC/TC41) centralized. This standard was drafted unit. Northeast Forestry University, Forestry Research Institute of Liaoning Province, Heilongjiang Province Tonghe Forestry Bureau, Jilin, China Forest Industry Group Co., Ltd., Qingdao Agricultural University, Harbin Forestry Bureau. The main drafters of this standard. Shen Jun, Wang Jingxian, Zhang Hongzhao, Liu Yu, Du Chao, Zhao Yang, Yu Changyong, Cui Xiaolei, Zhang Guoxin. This standard replaces the standards previously issued as. --- GB/T 155.1 ~ 155.3-1984; --- GB/T 4823.1 ~ 4823.3-1984; --- GB/T 155-1995, GB/T 155-2006. Log defects1 ScopeThis standard specifies the terms and definitions of conifer and broadleaf wood defects, classification. This standard applies to softwood and hardwood logs. The original reference to the implementation.2 Normative referencesThe following documents for the application of this document is essential. For dated references, only the dated version applies to this article Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 11917 Timber process terminology GB/T 15787 logs inspection terms3 Terms and definitionsGB/T 11917, GB/T 15787 and defined by the following terms and definitions apply to this document. 3.1 Knot knot Branches contained in the trunk or main branch of the xylem. 3.1.1 according to the degree of staging is divided into live and dead section 3.1.1.1 Liveknot; intergrownknot The knot formed by the live branches of trees, knot growth wheel and the surrounding wood closely linked, hard texture, structure normal. 3.1.1.2 Dead section deadknot; encasedknot The knot formed by withered branches of trees, the knot growth wheel detached or partially detached from the surrounding wood. 3.1.2 According to the material is divided into healthy section, decay section and leakage section 3.1.2.1 Sound festival soundknot The knot material is intact, no decadent phenomenon. 3.1.2.2 Decayedknot The knot itself has been decadent, but did not penetrate the trunk, the wood around them intact. 3.1.2.3 Tolerance seriouslydecayedknot Knot not only itself has been decadent, but also deep inside the trunk, causing the decay of the internal material. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 155-2017_English be delivered?Answer: Upon your order, we will start to translate GB/T 155-2017_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 155-2017?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 155-2017 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. |
