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LY/T 3204-2020: Flattened bamboo sheet
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| LY/T 3204-2020 | English | 169 |
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Flattened bamboo sheet
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LY/T 3204-2020
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Basic data | Standard ID | LY/T 3204-2020 (LY/T3204-2020) | | Description (Translated English) | Flattened bamboo sheet | | Sector / Industry | Forestry Industry Standard (Recommended) | | Classification of Chinese Standard | B69 | | Classification of International Standard | 79.060 | | Word Count Estimation | 7,716 | | 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 3204-2020: Flattened bamboo sheet---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.
Flattened bamboo sheet
ICS 79.060
B 69
People's Republic of China Forestry Industry Standard
LY
Bamboo exhibition board
2020-03-30 released
2020-10-01 implementation
Issued by the State Forestry and Grassland Administration
release
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/TC263).
Drafting organizations of this standard. Zhejiang Agriculture and Forestry University, Hangzhou Zhuangyi Furniture Co., Ltd., Zhejiang Dechang Bamboo and Wood Products Co., Ltd., Shuanggun Technology
Co., Ltd., Zhejiang Jiuchuan Bamboo and Wood Co., Ltd., Fujian Dazhuang Bamboo Industry Technology Co., Ltd., Zhejiang Shuangqiang Bamboo and Wood Co., Ltd., Hangzhou
Zhou Dasuo Technology Co., Ltd., Jiangxi Oriental Famous Bamboo and Bamboo Industry Co., Ltd., Zhejiang Qianshu Household Products Co., Ltd., Zhejiang Baishanzu Industry and Trade Co., Ltd.
Limited company.
Drafters of this standard. Zhang Wenbiao, Zhang Xiaochun, Li Wenzhu, Yu Wenjun, Zhong Jinhuan, Ying Weijun, Liu Hongzheng, Shen Dechang, Zhou Zhaocheng,
Zhou Yifan, Shen Haiying, Lian Suxiang, Xu Jiang, Zhou Yicong, Lan Xiaobo, Wu Rong.
Bamboo exhibition board
1 Scope
This standard specifies the terms and definitions, requirements, inspection methods, inspection rules, signs, packaging, transportation and
Store.
This standard applies to bamboo tubes and curved bamboo sheets.
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 procedure by attributes Part 1.Batch inspection sampling searched by acceptance quality limit (AQL)
plan
GB/T 17657-2013 Test method for physical and chemical properties of wood-based panels and facing wood-based panels
GB/T 19367-2009 Determination of the size of wood-based panels
GB/T 36394-2018 Terminology for bamboo products
3 Terms and definitions
The following terms and definitions defined in GB/T 36394-2018 apply to this document.
3.1
A sheet-like material made of bamboo tubes or arc-shaped bamboo sheets that are softened, flattened, dried, and shaped.
[Rewrite GB/T 36394-2018, terms and definitions 2.1.12]
4 requirements
4.1 Appearance quality
Should meet the requirements of Table 1.
4.2 Specifications and deviations
4.2.1 Commonly used specifications.
--Length. 400mm, 450mm, 500mm, 800mm, 1250mm, 2050mm;
--Width. 135mm, 190mm, 260mm, 280mm, 300mm, 320mm, 350 mm;
--Thickness. 6 mm ~12 mm.
Specifications and dimensions can also be agreed upon by both parties.
4.2.2 Dimensional deviation
4.3 Physical and chemical performance indicators
Should meet the requirements of Table 3.
5 Test method
5.1 Appearance quality
5.1.1 Measuring tools
5.1.1.1 Steel tape, length 3 m, graduation value 1.0 mm.
5.1.1.2 Steel ruler, the graduation value is 0.5 mm.
5.1.1.3 Feeler gauge, graduation value 0.02 mm.
5.1.1.4 Six times reading magnifying glass.
5.1.2 Detection method
According to the appearance quality requirements of Table 1, the sampled samples shall be inspected by visual inspection or a six-fold reading magnifying glass to determine their grade.
5.2 Specifications and dimensions
5.2.1 Measuring tools
5.2.1.1 Steel tape, length 3 m, graduation value 1.0 mm.
5.2.1.2 Steel ruler with a graduation of 0.5 mm.
5.2.1.3 Micrometer, the graduation value is 0.01 mm.
5.2.1.4 Vernier caliper, graduation value 0.02 mm.
5.2.1.5 Feeler gauge, graduation value 0.02 mm.
5.2.1.6 Straight angle ruler, accuracy level 2.
5.2.2 Detection method
5.2.2.1 Length, width
According to the provisions of GB/T 19367-2009 in 8.2.
5.2.2.2 Thickness
According to the provisions of GB/T 19367-2009 in 8.1.
5.2.2.3 Right angle
According to the provisions of GB/T 19367-2009 in 8.3.
5.3 Water content
Carry out according to the method specified in 4.3 of GB/T 17657-2013.
5.4 Static bending strength
Carry out according to the method specified in 4.7 of GB/T 17657-2013.
6 Inspection rules
6.1 Batching rules and sampling plan
6.1.1 Batch rules
The raw materials and production conditions are basically the same, and the products produced on the same day or in the same group shall be sampled according to the batch number.
6.1.2 Sampling plan for size inspection
Adopt the normal inspection secondary sampling plan in GB/T 2828.1-2012, the inspection level is I, and the acceptance quality limit (AQL) is
6.5, see Table 4.
6.1.3 Sampling plan for appearance quality inspection
Adopt the normal inspection secondary sampling plan in GB/T 2828.1-2012, the inspection level is Ⅱ, and the acceptance quality limit (AQL) is
4.0, see Table 5.
6.1.4 Sampling plan for physical and chemical performance inspection
The physical and chemical performance inspection adopts the re-inspection sampling plan, see Table 6.If the sample inspection result of the first sampling is unqualified, the re-inspection
Check the sample size to take samples and re-check the unqualified items. The sampling shall be randomly selected from the inspection lot.
6.2 Judgment rules
6.2.1 Judgment rules for appearance quality and specification dimensions and their deviation inspection results
The number of samples inspected for the first time should be equal to the number of first samples of the plan. If the number of nonconforming products found in the first sample is less than
Or equal to the first acceptance number, the batch of products should be considered acceptable; if the number of unqualified products found in the first sample is between the first
Between the number of acceptances and the number of first rejections, a second sample shall be taken.
If the cumulative number of nonconforming products found in the first and second samples is less than or equal to the second acceptance number, the batch of products is determined to be acceptable
Accepted; if the number of unqualified products found in the cumulative first and second samples is greater than or equal to the second rejected number, then the batch is judged
Products are not acceptable.
6.2.2 Judgment rules of physical and chemical performance test results
When the moisture content of the samples all meet the index value, the moisture content of the batch of products is judged to be qualified; otherwise, a re-inspection should be carried out. Of retested samples
When the moisture content meets the index value, it is judged as qualified.
6.3 Type of inspection
It is divided into factory inspection and type inspection.
6.3.1 Factory inspection
Each batch of products should undergo factory inspection. The factory inspection is carried out by the quality inspection department of the production unit, or a third-party inspection agency can be entrusted.
The inspection items are appearance quality, specifications and dimensions, and moisture content.
6.3.2 Type inspection
During normal production, periodic inspection once a year. The inspection items are all items specified in this standard. One of the following situations
Type inspection should be carried out when.
a) When production is suspended for a long time and production is resumed;
b) Changes in raw materials or changes in the main production process may affect product quality;
c) When the national market supervision and administration department proposes a type inspection request;
d) When there is a big difference between the factory inspection and the last type inspection.
6.4 Comprehensive judgment
When the product appearance quality, specification size and physical and chemical performance test results meet the corresponding technical requirements, the product is judged to be qualified.
Otherwise, it is judged as unqualified.
7 Marking, packaging, transportation and storage
7.1 Logo
The product mark should include the following. product name, specification, quantity, grade, standard number, production date, name of the manufacturer
According to the supply, the label must be clear.
7.2 Packaging
Products should be packaged separately according to product category, specification and grade when leaving the factory. The packaging should be firm, tidy, and moisture-proof.
The columns are neatly arranged, the packaging materials, specifications and models of the same batch of products should be consistent, and detailed product instructions should be provided. If the contract provides otherwise,
According to the contract.
7.3 Transportation and storage
The products should be stacked flat during transportation to prevent damage. They should not be exposed to damp, rain or exposure to the sun, and are not allowed to be chemically or corrosive.
Mixed goods. Products should be stored in a dry, clean, ventilated warehouse or rain-proof shelter, and away from fire sources; storage should be classified according to category,
The specifications and grades are stacked separately, and each stack should be marked accordingly.
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