LY/T 3347-2023 English PDF

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LY/T 3347-2023: Testing methods for physical and mechanical properties of small diameter bamboo culm
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Basic data

Standard ID: LY/T 3347-2023 (LY/T3347-2023)
Description (Translated English): Testing methods for physical and mechanical properties of small diameter bamboo culm
Sector / Industry: Forestry Industry Standard (Recommended)
Classification of Chinese Standard: B60
Classification of International Standard: 79.040
Word Count Estimation: 20,286
Date of Issue: 2023-06-19
Date of Implementation: 2023-11-01
Issuing agency(ies): State Forestry and Grassland Administration

LY/T 3347-2023: Testing methods for physical and mechanical properties of small diameter bamboo culm

---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 CCSB60 Forestry Industry Standard of the People's Republic of China Test method for physical and mechanical properties of small diameter round bamboo Released on 2023-06-19 2023-11-01 Implementation The State Forestry and Grassland Administration issued

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents" Drafting. Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents. This document was proposed by the State Forestry and Grassland Administration. This document is under the jurisdiction of the National Technical Committee for Bamboo and Rattan Standardization (SAC/TC263). This document was drafted by. Anhui Agricultural University, Nanjing Forestry University, International Bamboo and Rattan Center, Anhui Product Quality Supervision and Inspection Institute, Hefei Product Quality Supervision and Inspection Institute, etc. The main drafters of this document are. Wang Chuangui, Li Rongrong, Wang Hankun, Wu Zicheng, Tan Junlin, Wu Heng, Zhang Shuangyan, Pang Min, Dong Honggan, Dai Fukuan. Test method for physical and mechanical properties of small diameter round bamboo

1 Scope

This document defines the terms and definitions of the test methods for the physical and mechanical properties of small-diameter round bamboo, and stipulates the collection of test materials, preparation of test pieces, and test methods. Basic provisions of the method, experimental instruments and equipment, test methods, etc. This document is applicable to the physical and mechanical property tests of small-diameter bamboo with a breast height diameter not exceeding 50mm.

2 Normative references

The contents of the following documents constitute the essential clauses of this document through normative references in this document. For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to This document. GB/T 8170 Rules for rounding off values and expression and determination of limit values GB/T 15780-1995 Test methods for physical and mechanical properties of bamboo

3 Terms and definitions

The following terms and definitions apply to this document. 3.1 Bamboo stalks with a breast diameter not exceeding 50mm after transverse cutting. 3.2 bigheaddiameter The diameter of the larger section of the test material. 4.Sample collection and specimen preparation 4.1 Sample collection 4.1.1 In order to obtain the basic properties of a certain bamboo material, sample materials should be collected from representative bamboo producing areas. Collection is carried out in different areas according to different climate, geographical location, soil and other natural conditions. 4.1.2 In the bamboo forests of the collection area, select representative bamboo trees from the small-diameter bamboo forests with a diameter of less than 50 mm at breast height and no less than 100 trees. There shall be no less than 15 samples of sexually active, mature and defect-free bamboo. 4.1.3 After the sample bamboo is felled, record the breast diameter, branch height and bamboo height. Cut upward from the whole bamboo node about 0.5m above the ground. The breast height of the selected test material is The diameter is not more than 50mm. The length of the test material must meet the requirements of the measured performance. 4.1.4 After the test materials are cut, they should be transported in time to avoid discoloration, cracking, decay and insect infestation. 4.2 Specimen preparation 4.2.1 The test pieces are cut from left to right according to Figure 1.The length of bamboo section L1 is 300 mm, which is used to make density and shrinkage test pieces. The length of bamboo segment L2 is twice the diameter of the big end and is used to make the parallel grain compressive strength test specimen; the length of bamboo segment L3 is 12 times the diameter of the big end and is used to make the parallel grain compressive strength test specimen. ......

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