LY/T 2564-2015 English PDF

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LY/T 2564-2015: Determination of physical and mechanical properties of bamboo culm
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Basic data

Standard ID: LY/T 2564-2015 (LY/T2564-2015)
Description (Translated English): Determination of physical and mechanical properties of bamboo culm
Sector / Industry: Forestry Industry Standard (Recommended)
Classification of Chinese Standard: B60
Classification of International Standard: 79.04
Word Count Estimation: 26,250
Date of Issue: 2015-10-19
Date of Implementation: 2016-01-01
Regulation (derived from): National Forestry Anministration Announcement ��2015 No.19��
Issuing agency(ies): State Forestry Administration

LY/T 2564-2015: Determination of physical and mechanical properties of 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.
Determination of physical and mechanical properties of bamboo culm ICS 79.040 B60 People's Republic of China Forestry Industry Standard Test method for physical and mechanical properties of bamboo (ISO 22157-1.2004, Bamboo-Determinationofphysicalandmechanical Properties,NEQ) Released on October 18,.2015 2016-01-01 implementation State Forestry Administration released

Content

Foreword I 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 sample collection 1 5 Basic requirements 2 6 Test equipment 4 7 Test method 4 8 Test report 11 Appendix A (informative) Water content measurement record table 12 Appendix B (informative) Dry shrinkage measurement record table 13 Appendix C (informative) Air dry density, full dry density measurement record table 14 Appendix D (informative) Basic Density Measurement Record Table 15 Appendix E (informative) Straight compressive strength test record table 16 Appendix F (informative) Straight-line shear strength test record table 17 Appendix G (informative) Bending strength test record table 18 Appendix H (informative) Bending elastic modulus test record table 19 Appendix I (informative) Straight tensile strength test record 20 Appendix J (informative) Straight tensile modulus test record 21 Appendix K (informative) Radial ring stiffness test record table 22

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard uses the redrafting method to refer to ISO 22157-1.2004 "Determination of physical and mechanical properties of round bamboo" (English version), and The degree of conformity of ISO 22157-1.2004 is non-equivalent, and the main technical differences are as follows. --- Increased the test method of the radial ring stiffness of the bamboo. This standard is proposed and managed by the National Bamboo and Rattan Standardization Technical Committee (SAC/TC263). This standard was drafted. International Bamboo and Rattan Center, Zhejiang Academy of Forestry, Institute of Wood Industry, Chinese Academy of Forestry, North Beijing Forestry University, Fujian and its Changzhu Industry Co., Ltd., Hangzhou Heyu Bamboo Industry Co., Ltd. The main drafters of this standard. Wang Ge, Cheng Haitao, Zhang Wenfu, Wang Zheng, Zhang Shuangbao, Gao Li, Yu Xianlu, Cai Wei. Test method for physical and mechanical properties of bamboo

1 Scope

This standard specifies the terms and definitions of round bamboo, sample collection, basic regulations, test equipment, test methods and test reports. This standard is applicable to round bamboo used as engineering material with a diameter of not less than 50mm.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article. Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 1933-2009 Method for determination of wood density GB/T 8170 Numerical Rounding Rules and Representation and Determination of Limit Values

3 Terms and definitions

The following terms and definitions apply to this document. 3.1 Round bamboo bambooculm A bamboo stalk having a certain length through a cross section. 3.2 Cross-sectional area crosssectionalarea Cross-sectional area perpendicular to the main fiber and conduit direction. Note. The calculation formula is (π/4) × [D2-(D-2t) 2], where D and t are the average values of the measured diameter and wall thickness based on the sample. 3.3 Nominal diameter nominaldiameter The average value of the larger end face diameter of the test piece.

4 sample collection

4.1 Self-test materials 4.1.1 Select the bamboo material production area with representative site conditions to collect the test materials. 4.1.2 In the bamboo forest of the collection area, from the sample bamboos of not less than 100 plants, the representative bamboos with representative, mature and no obvious defects are scattered. Less than 12 strains. Bamboo maturity is subject to local customs. 4.1.3 Cut from the whole bamboo joint about 0.5m away from the ground, the nominal diameter of the selected test material is not more than 10mm. The length of the test material must be satisfied The performance requirements are measured. 4.2 Commercial samples 4.2.1 The commercially available test materials shall be classified according to the nominal diameter difference of not more than 10 mm. 4.2.2 In the same batch of not less than 100, no less than 12 randomly selected, the length of the test material shall meet the requirements of the measured performance. ......

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