GB/T 19367-2022 Determination of dimensions of wood-based panels
1 Scope
This document specifies methods for measuring the thickness, width and length, as well as the squareness, edge straightness and flatness of wood-based panels.
This document is applicable to the dimensional determination of wood-based panels.
2 Normative references
The following documents contain provisions which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
JB/T 12202-2015 Wedge-shape feeler gauge
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
squareness
distance (δ1, see Figure 1) between the edge of the panel and the edge of a right-angle ruler, or degree to which the four corners of a rectangular wood-based panel form an exact right angle
Dimensions in millimeters
Figure 1 Determination of the squareness of the panel with a mechanical square
3.2
edge straightness
degree of lateral bending deformation in the perpendicular direction to the edge of the panel (including the length edge and the width edge)
Note: Edge straightness includes the edge straightness of the length edge and the edge straightness of the width edge.
3.3
flatness
maximum distance between the surface of the panel and the horizontal surface
4 Determination method
4.1 Apparatus
4.1.1 Micrometer or similar measuring instrument, of scale interval 0.01 mm, having the measuring head of diameter between 6.0 mm to 20.0 mm. Select the measuring range according to the measured size.
4.1.2 Steel measuring tape, of scale interval 1 mm. Select the measuring range according to the measured size.
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Determination method
5 Expression of results
6 Test report
Annex A (Informative) Comparison of clause/subclause numbers between this document and ISO 9426: 2003
Annex B (Informative) Technical differences between this document and ISO 9426: 2003 and their justifications
