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LY/T 2722-2016 English PDF

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LY/T 2722-2016: Test method for evaluating structural adhesives for finger jointing lumber
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Basic data

Standard ID LY/T 2722-2016 (LY/T2722-2016)
Description (Translated English) Test method for evaluating structural adhesives for finger jointing lumber
Sector / Industry Forestry Industry Standard (Recommended)
Classification of Chinese Standard B70
Classification of International Standard 79.040
Word Count Estimation 7,777
Date of Issue 2016-07-27
Date of Implementation 2016-12-01
Quoted Standard GB/T 17657; GB/T 21140; LY/T 1280
Regulation (derived from) State Forestry Administration Announcement No.17 of 2016; Industry Standard Announcement No.16 of 2016 (No.204)
Issuing agency(ies) State Forestry Administration
Summary This standard specifies the terminology and definition of the structural adhesives used for finger joints, the equipment, test specimen preparation, test procedures, results calculation and test report. This standard applies to the testing of adhesive properties of structural adhesives for finger joints.

LY/T 2722-2016: Test method for evaluating structural adhesives for finger jointing lumber

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Test method for evaluating structural adhesives for finger jointing lumber ICS 79.040 B70 People's Republic of China Forestry Industry Standard Finger joint material structural adhesive bonding performance test method Released on.2016-07-27 Implementation of.2016-12-01 State Forestry Administration released

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. Please note that some of the contents of this document may involve patents. Publication of this document The organization is not responsible for identifying these patents. This standard is proposed and managed by the National Timber Standardization Technical Committee Structural Subcommittee on Wood (SAC/TC41/SC4). This standard was drafted. Beijing Forestry University, National Furniture and Indoor Environmental Quality Supervision and Inspection Center, Zhangpingmu Village, Fujian Province Company, Harbin Chengfeng Adhesive Co., Ltd., Shanghai Donghe Adhesive Co., Ltd., Zhejiang Chengzhu New Material Technology Co., Ltd. Zhouli Lianzhong Wood Industry Co., Ltd. The main drafters of this standard. Zhang Shuangbao, Yu Xuefei, Wang Cuicui, Song Wei, Shen Zaihua, Wu Zheyan, Wang Wenchao, Tao Yuehua, Gong Feifei, Lu Linsen, Wang Dandan, Yu Zhengzheng, Hou Guojun, Xu Zhengdong, Liu Xiang, Zhao Fang, Zhang Yazhuo, Zhao Ruilong, Feng Mingzhi, Zhao Heng, Li Wenyan, Li Xuefei, Wang Xiuquan. Finger joint material structural adhesive bonding performance test method

1 Scope

This standard specifies the terms and definitions of the adhesive properties of structural adhesives for finger joints, equipment, test piece preparation, test procedures, and knots. Calculation and test report. This standard applies to the testing of the adhesive properties of structural adhesives for finger joints.

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 17657 Artificial board and finished panel physicochemical properties test method GB/T 21140 refers to the non-structural use of materials LY/T 1280 Wood Industry Adhesive Terminology

3 Terms and definitions

The following terms and definitions defined by LY/T 1280 apply to this document. 3.1 Glue bond The process of bonding the two surfaces of the adherend together with an adhesive. 3.2 Tensile strength tensilestrength The tensile force of the unit bonding surface when the finger joint is broken.

4 instruments

4.1 million capacity test machine, the measurement accuracy is 1% of the load value, equipped with a wedge plug type clamp, the contact area of the clamp and the test piece is 35mm × 75mm. 4.2 Vernier caliper, the division value is 0.1mm, and the range is 0mm~300mm. 4.3 stopwatch. 4.4 Vacuum pressurizing device, the internal space should ensure that all test pieces are submerged under the water surface, and can be vacuumed to 90 kPa, keeping the pressure at (620 ± 35) kPa. 4.5 Heating device, in the circulating boiling test, the internal space should ensure that all the test pieces are submerged under the water surface. 4.6 Air drying oven to maintain temperature (60 ± 2) °C. 4.7 The specimen holder can be fixed vertically to the water to avoid contact between the specimens and between the specimen and the vessel wall. 4.8 Skim gauze.

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