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GB/T 19367-2009 (GBT19367-2009)

GB/T 19367-2009_English: PDF (GBT 19367-2009, GBT19367-2009)
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GB/T 19367-2009English105 Add to Cart 0--9 seconds. Auto-delivery Wood-based panels -- Determination of dimensions of panels Obsolete GB/T 19367-2009

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Older Standard (superseded by this standard) GB/T 19367.1-2003; GB/T 19367.2-2003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.

Standards related to: GB/T 19367-2009

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
...