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GB/T 19367-2022 Related PDF English (GB/T 19367-2009, GB/T 19367.1-2003)

GB/T 19367-2022 (GB/T19367-2022, GBT 19367-2022, GBT19367-2022) & related versions
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GB/T 19367-2022English155 Add to Cart 0-9 seconds. Auto delivery. Determination of dimensions of wood-based panels GB/T 19367-2022 Valid GBT 19367-2022
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GB/T 19367-2022 GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 79.060.01 CCS B 70 Replacing GB/T 19367-2009 Determination of dimensions of wood-based panels (ISO 9426:2003, Wood-based panels - Determination of dimensions of panels, MOD) ISSUED ON: DECEMBER 30, 2022 IMPLEMENTED ON: JULY 01, 2023 Issued by: State Administration for Market Regulation; National Standardization Administration. Table of Contents Foreword ... 3 1 Scope ... 5 2 Normative references ... 5 3 Terms and definitions ... 5 4 Determination methods ... 6 5 Result expression ... 9 6 Test report ... 10 Appendix A (Informative) Comparisons of structure numbers between this document and ISO 9426:2003 ... 11 Appendix B (Informative) List of technical differences between this document and ISO 9426:2003 and their reasons ... 12 Foreword This document is drafted in accordance with the provisions of GB/T 1.1-2020 "Directives for standardization - Part 1: Rules for the structure and drafting of standardizing documents". This document replaces GB/T 19367-2009 "Determination of dimensions of wood- based panels". Compared with GB/T 19367-2009, in addition to structural adjustments and editorial changes, the main technical changes are as follows: a) ADD terms and definitions (see Chapter 3); b) DELETE the principles, sampling, moisture content and balance processing of the plate during measurement (see Chapters 3, 4, 5, 6 of the 2009 edition); c) ADD the diagonal method for squareness determination (see 4.4.2); d) CHANGE the length measurement position (see 4.2; 8.2 of the 2009 edition); e) CHANGE the flatness determination (see 4.6; 8.5 of the 2009 edition); f) CHANGE the thickness accuracy requirements (see 5.2; 9.1 of the 2009 edition). This document modifies and adopts ISO 9426:2003 "Wood-based panels - Determination of dimensions of panels". Compared with ISO 9426:2003, this document has many structural adjustments. See Appendix A for a list of structure number comparisons between the two documents. Compared with ISO 9426:2003, this document has many technical differences. The involved clauses are marked with a vertical single line (│) in the outer margin of the page. A list of these technical differences and their causes is provided in Appendix B. The following editorial changes have been made to this document: a) In order to coordinate with the existing standards, CHANGE the name of the standard into "Determination of dimensions of wood-based panels"; b) ADD note to Figure 3; c) ADD informative appendix A and appendix B. Please note that some content in this document may be subject to patents. The publisher of this document assumes no responsibility for identifying patents. This document was proposed by the State Forestry and Grassland Administration. Determination of dimensions of wood-based panels 1 Scope This document describes methods for the determination of length, width, thickness, squareness, edge straightness, flatness of wood-based panels. This document is applicable to the dimensional determination of wood-based panels. 2 Normative references The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, for dated reference documents, only the version corresponding to the date applies to this document; for undated reference documents, the latest version (including all amendments) applies to this document. JB/T 12202-2015 Wedge feeler gauge 3 Terms and definitions The following terms and definitions apply to this document. 3.1 Squareness The degree to which the distance between the edge of the panel and the edge of the right angle (δ1, see Figure 1), or the four corners of the rectangular wood-based panel form precise right angles. the panel (see Figure 1). Then measure with one arm against the other side of the corner of the panel. The results are expressed as the ratio of the distance to the arm length of the mechanical square, in millimeters per meter (mm/m). Follow the same method as above for other angles; take the maximum value. 4.4.2 Method 2 Use a steel tape measure (4.1.2), to measure the two diagonal lengths and opposite side lengths of the panel, accurate to 1 mm. Calculate the diagonal difference and opposite side difference, respectively. The results are expressed as diagonal difference and opposite side difference, accurate to 1 mm. 4.5 Determination of edge straightness Use a steel ruler (4.1.5) close to the edge of a panel, OR straighten a metal wire (4.1.6) which is placed on two adjacent corners of the panel. According to the measurement range, choose a steel ruler, feeler gauge (4.1.7), wedge feeler gauge (4.1.8) or vernier caliper (4.1.3), to measure the maximum distance between the steel ruler or straightened metal wire and the edge of the panel. The result is expressed as the ratio of the maximum distance to the length of the panel edge, in millimeters per meters (mm/m). Other panel edges are measured in the same way as above. Note: If the length of the edge of the panel is less than 1000 mm, use a steel ruler; if the length is greater than 1000 mm, use a metal wire. 4.6 Determination of flatness Place the panel on a horizontal surface without any external force. Measure the distance between the entire surface of the tested panel and the straightened metal wire. Find the surface distance between the metal wire and the maximum deformation point of the panel. Use a steel ruler (4.1.5) to make measurement. The result is expressed as the ratio of the measured value to the diagonal of the panel, in millimeters per meter (mm/m). 5 Result expression 5.1 Length and width For each tested panel, calculate the arithmetic mean of the measured values representing the length and width respectively, accurate to 1 mm. 5.2 Thickness For each tested panel, calculate the arithmetic mean of each measurement value, accurate to 0.01 mm. 5.3 Squareness Method 1: The result is the maximum measured value of the deviation between the edge of the square and the edge of the panel, expressed in millimeters per meter of length, accurate to 0.5 mm/m. Method 2: The result is expressed as diagonal difference and opposite side difference, accurate to 1 mm. 5.4 Edge straightness The result is the maximum spacing divided by the length of that side, expressed in millimeters per meter (mm/m). The width and length of the panel are expressed separately. 5.5 Flatness The results are expressed as the ratio of the maximum deformation value to the diagonal of the panel, expressed in millimeters per meter (mm/m). 6 Test report The test report shall contain the following information: - Name and address of the testing laboratory; - Sampling reports according to relevant provisions of individual product standards for various wood-based panels; - Standards implemented for testing; - Date of test report; - Type, format size, thickness of wood-based panels; - Relevant product description; - If necessary, description of the surface treatment status; - The use of special instruments within the scope of this document as permitted under various possible circumstances; - Expression of test results using Chapter 5; - All inconsistencies with this document. ......


GB/T 19367-2009 GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 79.060.01 B 70 Replacing GB/T 19367.1-2003, GB/T 19367.2-2003 Wood-Based Panels - Determination of Dimensions of Panels (ISO 9426.2003, MOD) ISSUED ON. MAY 12, 2009 IMPLEMENTED ON. NOVEMBER 01, 2009 Issued by. General Administration of Quality Supervision, Inspection and Quarantine; Standardization Administration of PRC. Table of Contents Foreword ... 3 1 Scope ... 5 2 Normative References ... 5 3 Principle ... 5 4 Sampling ... 5 5 Moisture-Content of the Panel at the Measurement ... 6 6 Balance Treatment ... 6 7 Instrument ... 6 8 Methods ... 7 9 Result Expression ... 9 10 Test Report ... 10 Foreword This Standard modified and used international standard ISO 9426.2003 Wood-Based Panels - Determination of Dimensions of Panels (English Version). When this Standard modifies and uses internationals standard, the technical differences shall be marked with vertical single-line on the terms of their margins. Compared with ISO 9426.2003, this Standard has the technical differences as follows. --- Add the following contents to 8.1. NOTE 1. in the event of a dispute between the supplier and the purchaser, the panel is allowed to be sawed from the middle, then measure as per above-mentioned method. NOTE 2. in the event of a dispute between the supplier and the purchaser, the micrometer with probe dimeter of 15.0mm~20.0mm is allowed to be used for measurement. --- Modify the rope-line into metal line in “8.5 Determination of flatness”. This Standard is the integrated revision against GB/T 19367.1 and GB/T 19367.2. This Standard replaced GB/T 19367.1-2003 Wood-Based Panels – Determination of Thickness, Width and Length of Boards, and GB/T 19367.2-2003 Wood-Based Panels – Determination of Squareness and Straightness of Boards. Compared with GB/T 19367.1-2003, GB/T 19367.2-2003, this Standards has the differences as follows. --- Add the contents of balance treatment; --- Add the measurement contents of paperback degree. This Standard was proposed by the State Forestry Administration of the PRC. This Standard shall be under the jurisdiction of National Technical Committee for Standardization of Wood-Based Panels. Drafting organizations of this Standard. Research Institute of Wood Industry, Chinese Academy of Forestry. Participating drafting organizations of this Standard. Shanghai Institute of Quality Inspection and Technical Research, Dehua Tubao New Decoration Material Co., Ltd., Foshan Nanhai Yaodonghua Furniture Boards Co., Ltd., Guangxi Fenglin Wood Industry Group Co., Ltd., Jiangmen Daping Wood Industry Co., Ltd., Foshan Zhengsen Wood Working Co., Ltd., Nanjing Leibo Texiangshi Wood Industry Co., Ltd., Asia Dekor Industries (Shenzhen) Co., Ltd., Shengda Forestry Industry Co., Ltd., Shandong Xingang Group Co., Ltd. Chief drafting staffs of this Standard. Peng Limin, Cao Zhongrong, Zhang Yinghong, Wood-Based Panels - Determination of Dimensions of Panels 1 Scope This Standard specifies the measurement methods for the thickness, width, length, squareness, edge straightness and flatness of various wood-based panels. This Standard is applicable to the wood-based panels with entire plane shape. 2 Normative References The provisions in following documents become the provisions of this Standard through reference in this Standard. For dated references, the subsequent amendments (excluding corrigendum) or revisions do not apply to this Standard, however, parties who reach an agreement based on this Standard are encouraged to study if the latest versions of these documents are applicable. For undated references, the latest edition of the referenced document applies. GB/T 17657 Test Methods of Evaluating the Properties of Wood-based Panels and Surface Decorated Wood-based Panels 3 Principle Measure the entire panel’s thickness, length and width through the linear measurement method. Measure the entire panel’s squareness and straightness through measuring the deviation between the mechanical-square or ruler and the panel. Measure the flatness through measuring the surface deviation of the metal line measurement panel that penetrates the whole surface and is straightened by the panel’s edge. 4 Sampling For the bulk testing of the finished panels, it shall be sampling according to the relevant provisions of individual product standard for various wood-based panels. stipulated in 7.5 to measure the distance δ1 between the panel’s edge and the other arm’s side of the mechanical-square (see Figure 3). Follow the same method for other corners. NOTE. For process control of factory production, if the valid relevant data can be confirmed, the squareness can also be measured by the difference of two-diagonals’ length of the panel; use steel tape to measure. 8.4 Determination of edge straightness Place the ruler against one edge of the panel; or place the straightened metal wire in the two corners of the panel. Use the measuring instrument stipulated in 7.5 to measure the maximum deviation between the ruler (or straightened metal wire) and the panel’s edge, the result shall be accurate to 0.5mm. Follow the same method for other edges. 8.5 Determination of flatness Place the panel on a horizontal surface without any external force; measure the distance between the whole-surface of the tested panel and the straightened metal wire; find out the surface distance between the metal wire and maximum deformation point of the panel; use steel ruler to measure, accurate to 0.5mm. 9 Result Expression 9.1 Thickness For each tested panel, use the arithmetic mean of each measurement value to express the thickness, accurate to 0.1mm. 9.2 Length and width For each tested panel, use the arithmetic mean of each measurement value to express the length and width, accurate to 1mm. 9.3 Verticality The result is the maximum measurement value of deviation between the mechanical- square’s side and the panel’s edge; use the number of millimeters on the edge-length per meter of panel to express the squareness, accurate to 0.5mm/m. 9.4 Edge straightness ......

BASIC DATA
Standard ID GB/T 19367-2022 (GB/T19367-2022)
Description (Translated English) Determination of dimensions of wood-based panels
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard B70
Classification of International Standard 79.060.01
Word Count Estimation 10,137
Date of Issue 2022-12-30
Date of Implementation 2023-07-01
Older Standard (superseded by this standard) GB/T 19367-2009
Drafting Organization Wood Industry Research Institute of Chinese Academy of Forestry, Huzhou Inspection and Testing Center, Suzhou Product Quality Supervision and Inspection Institute, Mahogany Fang Furnishing Technology (Huzhou) Co., Ltd., Holy Elephant Group Co., Ltd., Dehua Rabbit Baby Decoration New Material Co., Ltd. , Zhaoqing Yaodonghua Decoration Material Technology Co., Ltd., Zhejiang Academy of Forestry Sciences, Zhejiang Shenghua Yunfeng New Material Co., Ltd., Jiangxi Inspection and Certification General Institute of Industrial Products Inspection and Testing Institute, Nanjing Forestry University, Shanghai Timber Industry Research Institute Co., Ltd., Shanghai Quality Supervision and Inspection Technology Research Institute, Changzhou Inspection and Testing Standard Certification Institute, Quzhou Fangyuanlin Product Inspection and Testing Co., Ltd., Zhaoqing Modern Zhumei Home Furnishing Co., Ltd., Shouguang Luli Wood Industry Co., Ltd., Sophia Home Furnishing Hubei Co., Ltd., Guangxi Zhuang
Administrative Organization National Wood-based Panel Standardization Technical Committee (SAC/TC 198)
Proposing organization State Administration for Market Regulation, National Standardization Management Committee

BASIC DATA
Standard ID GB/T 19367-2009 (GB/T19367-2009)
Description (Translated English) Wood-based panels. Determination of dimensions of panels
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard B70
Classification of International Standard 79.060.01
Word Count Estimation 8,828
Date of Issue 2009-05-12
Date of Implementation 2009-11-01
Older Standard (superseded by this standard) GB/T 19367.1-2003; GB/T 19367.2-2003
Quoted Standard GB/T 17657
Adopted Standard ISO 9426-2003, MOD
Drafting Organization Institute of Chinese Academy of Forestry Timber Industry
Administrative Organization National Standardization Technical Committee plywood
Regulation (derived from) National Standard Approval Announcement 2009 No.7 (Total No.147)
Proposing organization State Forestry Administration
Issuing agency(ies) Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China; Standardization Administration of China
Summary This standard specifies the thickness of the various wood-based panels, width, length, verticality, measurement methods edge straightness and flatness. This standard applies to the entire planar plywood.

BASIC DATA
Standard ID GB/T 19367.1-2003 (GB/T19367.1-2003)
Description (Translated English) Wood-based panels-Determination of thickness, width and length of boards
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard B70
Classification of International Standard 79.060.01
Word Count Estimation 8,832
Date of Issue 2003-11-10
Date of Implementation 2004-05-01
Adopted Standard EN 324-1-1992; MOD
Drafting Organization Institute of Wood Industry, Chinese Academy of Forestry
Administrative Organization National Standardization Technical Board for Wood - based Panel
Regulation (derived from) Announcement of Newly Approved National Standards No. 14 of 2003 (total 62); Announcement of Newly Approved National Standards No. 7 of 2009 (No. 147 overall)
Proposing organization State Forestry Administration
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine of the People Republic of China