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LY/T 3200-2020 English PDF

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LY/T 3200-2020: General technical requirements for bamboo-culm furniture
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PDF similar to LY/T 3200-2020


Standard similar to LY/T 3200-2020

GB/T 3325   GB/T 3324   GB/T 3326   LY/T 2140   

Basic data

Standard ID LY/T 3200-2020 (LY/T3200-2020)
Description (Translated English) General technical requirements for bamboo-culm furniture
Sector / Industry Forestry Industry Standard (Recommended)
Classification of Chinese Standard Y80
Classification of International Standard 97.140
Word Count Estimation 10,164
Date of Issue 2020-03-30
Date of Implementation 2020-10-01
Regulation (derived from) Announcement No. 6 of 2020 by the State Forestry and Grassland Bureau
Issuing agency(ies) State Forestry and Grassland Administration

LY/T 3200-2020: General technical requirements for bamboo-culm furniture

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General technical requirements for bamboo-culm furniture ICS 97.140 Y 80 People's Republic of China Forestry Industry Standard LY General technical requirements for round bamboo furniture 2020-03-30 released 2020-10-01 Implementation Issued by the State Forestry and Grassland Administration

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard was proposed and managed by the National Bamboo and Rattan Standardization Technical Committee (SAC/TC 263). Drafting organizations of this standard. Nanjing Forestry University, Dehua Rabbit Baby Decoration New Materials Co., Ltd., Zhejiang Jiuchuan Bamboo and Wood Co., Ltd., Ningbo Zhuyun Household Products Co., Ltd., Anji Wojia Bamboo and Wood Technology Co., Ltd., Guizhou Xinjin Bamboo and Wood Products Co., Ltd., Happy Wood Group, Hangzhou Junze Cultural Creative Co., Ltd., Hangzhou Zhuangyi Furniture Co., Ltd., Xiamen Weihaotai Technology Co., Ltd., Guangdong Haochenwang Technology Co., Ltd. Company, Huangshan Huizhou Zhuyixuan Carving Co., Ltd., Zhejiang Agriculture and Forestry University, Zhejiang Baishanzu Industry and Trade Co., Ltd., Fujian Dazhuang Bamboo Technology Co., Ltd. Co., Ltd., Jiangxi Oriental Famous Bamboo Industry Co., Ltd., Zhejiang Zhuangcheng Bamboo Industry Co., Ltd., Hangzhou Mingyi Craft Products Co., Ltd. The main drafters of this standard. Xu Bin, Li Yanjun, Zhan Xianxu, Zhou Songzhen, Wang Jianqin, Xu Yan, Yao Lianshu, Suo Guangmin, Chen Hong, Cheng Dali, Wang Xinzhou, Liu Hongzheng, Wang Daojiang, Zhang Zhihuan, Lin Hongsong, Zhu Wei, Zhang Weigang, Zhou Yifan, Zhou Yicong, Liang Xingyu, Dai Yueping, Yu Xiaohong, Wang Gang, Wu Youqing, Niu Shuaihong, Wu Yifei. General technical requirements for round bamboo furniture

1 Scope

This standard specifies the terms and definitions, classification, requirements, inspection methods, inspection rules and labels, packaging, transportation and storage of round bamboo furniture. Save. This standard applies to indoor furniture made of round bamboo as the main frame.

2 Normative references

The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this document. For undated references, the latest version (including all amendments) applies to this document. GB/T 2828.1-2012 Sampling Inspection Procedures by Attributes Part 1.Batch-by-batch Inspection Sampling Retrieved by Acceptance Quality Limit (AQL) GB/T 3324-2017 General technical requirements for wooden furniture GB/T 4893.2-2005 Determination of resistance to heat and humidity on furniture surfaces GB/T 4893.3-2005 Determination of resistance to dry heat on furniture surfaces GB/T 4893.7-2013 Furniture surface paint film physical and chemical properties test Part 7.Determination of resistance to cold and heat GB/T 4893.9-2013 Furniture surface paint film physical and chemical properties test Part 9.Determination of impact resistance GB/T 10357.1-2013 Furniture Mechanical Performance Test Part 1.Table Strength and Durability GB/T 10357.2-2013 Furniture Mechanical Performance Test Part 2.Stability of Chairs and Stools GB/T 10357.3-2013 Furniture Mechanical Performance Test Part 3.Chair and Stool Strength and Durability GB/T 10357.4-2013 Furniture Mechanical Performance Test Part 4.Cabinet Stability GB/T 10357.5-2011 Furniture Mechanical Performance Test Part 5.Cabinet Strength and Durability GB/T 10357.6-2013 Furniture Mechanical Performance Test Part 6.Strength and Durability of Single Bed GB/T 10357.7-2013 Furniture Mechanical Properties Test Part 7.Table Stability GB/T 17657-2013 Test method for physical and chemical properties of wood-based panels and facing wood-based panels GB 18584 Limits of harmful substances in interior decoration materials and wooden furniture GB/T 28202-2011 Furniture Industry Terminology

3 Terms and definitions

The following terms and definitions defined in GB/T 28202-2011 apply to this document. 3.1 Bamboo-culm, raw bamboo Raw bamboo After the bamboo is harvested, the round, hollow, and knotted bamboo stalks are maintained after root cutting and branch removal. 3.2 Bamboo-culm furniture Raw bamboo furniture Furniture made of bamboo poles as the main body to form a frame or component, supplemented by bamboo strips, bamboo slices, bamboo boards, bamboo weaving and other accessories. 3.3 Caramelised bamboo-culm After heat treatment, the color becomes darker. 3.4 Roasted bamboo-culm with artificial grain The bamboo green noodles are fire-roasted and smoked to form round bamboo with patterns. 3.5 Shrinking knot During the growth of bamboo, it is damaged by pathogens and insects or affected by the bad environment, which destroys its normal growth pattern, resulting in shortened bamboo joint spacing or The phenomenon of swelling.

4 categories

4.1 Classification by product function. a) Cabinet round bamboo furniture; b) Frame round bamboo furniture; c) Round bamboo furniture for beds; d) Several types of round bamboo furniture for tables; e) Chair and stool round bamboo furniture; f) Sofa round bamboo furniture; g) Screen round bamboo furniture; h) Other round bamboo furniture. 4.2 Classification according to the surface color of round bamboo. a) Natural round bamboo furniture; b) Bleached white round bamboo furniture; c) Carbonized round bamboo furniture; d) Smoked round bamboo furniture; e) Toning round bamboo furniture.

5 requirements

5.1 Main dimensions and deviations It shall meet the requirements specified in Table 1 of GB/T 3324-2017. 5.2 Shape and position tolerance It shall meet the requirements specified in Table 2 of GB/T 3324-2017. 5.3 Material requirements 5.3.1 Bamboo species Bamboo species suitable for making round bamboo furniture. Moso bamboo, light bamboo, purple bamboo Red bamboo, tea stalk bamboo, Ci bamboo, white bamboo, etc. 5.3.2 Water content The moisture content of bamboo in the product is 6.0%~15.0%. 5.3.3 Material It is advisable to choose mature, moth-free, rot-free, mildew-free, and no shrinkage bamboo materials as round bamboo furniture materials. 5.4 Appearance requirements Should meet the requirements of Table 1. 5.5 Surface physical and chemical properties Should meet the requirements of Table 2.Special test conditions and requirements can be agreed between the supplier and the buyer. 5.6 Mechanical properties Should meet the requirements of Table 3.General furniture is in accordance with the level 3 in Appendix A of GB/T 10357.1-2013 (medium load use, comparison Furniture that is frequent and prone to misuse, such as general bedroom furniture, general office furniture, hotel furniture, etc.) Tests, special test conditions and requirements can be agreed between the supplier and the buyer, and the tests are carried out at other levels in Appendix A. 5.7 Limits of hazardous substances Should meet the requirements of GB 18584.

6 Test method

6.1 Determination of main dimensions and deviations Test according to the provisions of 6.1 of GB/T 3324-2017. 6.2 Determination of shape and position tolerance Test according to 6.2 of GB/T 3324-2017. 6.3 Material inspection 6.3.1 Inspection of insect-eaten, decayed, and mildewed bamboo or wooden materials Using the method of naked eye observation, carefully check whether there are live insects, eggs, or insects in the bamboo or wood materials Powder, decay, mildew. 6.3.2 Determination of moisture content According to the provisions of GB/T 17657-2013. 6.3.3 Shrinkage inspection of bamboo materials Using the method of naked eye observation, carefully check whether there is shrinkage in the bamboo material. 6.4 Visual inspection 6.4.1 Discoloration and fading inspection Inspect 3 locations on the exterior or interior of the product, and use moist degreased white gauze with bare hands. Wipe 3 times on each place after coming, the reciprocating distance of the wipe is.200~300mm, observe whether there is a coating part on the gauze The color on the bit. 6.4.2 Inspection of other visual inspection items It should be under natural light or approximate natural light (such as 40W fluorescent lamp) within the range of 300lx~600lx. The sight distance is within 700mm~1000mm, using visual inspection or a steel ruler with an accuracy of 0.5mm for measurement. When there is a dispute, by Three people conduct joint inspection, and two or more people have the same opinion as the inspection result. 6.5 Physical and chemical performance test 6.5.1 Test of physical and chemical properties of paint film coating on bamboo parts, wooden parts and wood-based panels The resistance of the paint film to cigarette burns is tested according to the provisions of 4.45 in GB/T 17657-2013, and the remaining items are tested according to GB/T 4893.2~4893.3-2005 and 4893.7~4893.9-2013 specified tests. 6.6 Mechanical performance test The strength, durability and stability of round bamboo furniture are measured in accordance with the provisions of GB/T 10357.1~10357.7-2013. 6.7 Determination of the limit of hazardous substances Test according to GB 18584.

7 Inspection rules

7.1 Inspection classification Inspection is divided into factory inspection and type inspection. 7.2 Factory inspection 7.2.1 Factory inspection The inspection performed when the product leaves the factory or when it is delivered. 7.2.2 Factory inspection The factory inspection items include. a) Main dimensions and their deviations (5.1); b) Shape and position tolerance (5.2); c) Material requirements (5.3); d) Appearance requirements (5.4). 7.2.3 Sampling and batching rules for factory inspection Ex-factory inspection should be fully inspected, and sampling inspection can be implemented if it is difficult to complete inspection due to large batches. Sampling inspection method basis According to the regulations in GB/T 2828.1-2012, normal inspection and one-time sampling plan are adopted, the general recommendation level is II, and the acceptance quality (AQL) is 6.5.The sample size and judgment value are in accordance with Table 5. Note. 26 pieces or less are full inspection 7.2.4 Judgment of factory inspection results 7.2.4.1 In the single product inspection items, the basic items are all qualified, and the general items are not more than 3 items, then the product is judged to be qualified Product, otherwise it is unqualified. 7.2.4.2 When each product in the set of products is qualified, the set of products is determined to be qualified, otherwise it is unqualified. 7.2.4.3 For the evaluation of batch of products, if the number of unqualified products is less than or equal to the acceptance number (Ac) in the sample volume specified in Table 5, the batch is determined The product is a qualified batch; if the number of unqualified products is greater than or equal to the rejected number (Re), the batch of products is determined to be an unqualified batch. 7.3 Type inspection 7.3.1 Type inspection items Type inspection shall include all items required by this standard (except items not required by contract). 7.3.2 Timing of type inspection During normal production, inspections should be carried out regularly, and the inspection cycle is generally one year; in one of the following cases, type inspections should be carried out. a) When the raw and auxiliary materials and production process undergo major changes; b) When the product has been discontinued for half a year or more and production is resumed; c) Trial type appraisal of new products or old products transferred to factories; d) When the user puts forward the type inspection requirements and stipulates in the order contract; e) When the quality supervision agency proposes type inspection requirements. 7.3.3 Sampling rules for type inspection In an inspection cycle, 2 samples are randomly selected from the recently produced products, 1 is sent for inspection, and 1 is sealed. 7.3.4 Type inspection procedure The inspection procedure shall follow the principle of not affecting the correctness of the remaining inspection items as much as possible. 7.3.5 Judgment of type inspection results 7.3.5.1 In the single product inspection items, all the basic items are qualified, and the general items are not more than 4, and the product is determined to be qualified Product, otherwise it is unqualified. 7.3.5.2 Each product in the set of products shall be evaluated in accordance with 7.3.5.1.When each product is qualified, the set of products shall be determined as Qualified products, otherwise unqualified products. 7.3.6 Type inspection reinspection rules If the product is judged to be unqualified after the type inspection, if there is any objection to the inspection result, the sealed spare sample can be re-inspected. Right Qualified items and items not inspected due to damage to the test piece shall be inspected, and shall be evaluated in accordance with 7.3.5, and “re-inspection” shall be indicated in the inspection result. 8 Identification, instructions for use, packaging, transportation and storage 8.1 Marking and instructions for use Logo and instructions for use include. a) Product name, model specification, product implementation standard number; b) The name and grade of the main raw and auxiliary materials of the product; c) Control indicators for the limit of harmful substances in products; d) Inspection certificate and production date; e) Technical requirements and precautions for product installation and adjustment; f) Product use method and matters needing attention; g) Product maintenance methods; h) Manufacturer's guarantee and after-sales service requirements. 8.2 Packaging The packaging should have sufficient firmness to ensure that the product avoids bumps, scratches and stains under normal transportation and storage conditions. The packaging should There are instructions for use, precautions for use, use environment, etc., and related safety warning signs. 8.3 Transportation and storage During the transportation and storage of the product, the necessary protection shall be taken to prevent pollution, moth-eaten, damp, and sun exposure. When storing, they should be stacked separately according to category, specification and grade.

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