ДСТУ Б EN 13647:2014
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1 I. 2 3 4 ^a 1 2 3 4 5 6 7 8 CONTENTS
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1 Scope 1
2 Normative references 1
3 Terms and definitions 1
4 Principles 1
5 Equipment 5
6 Procedure 7
7 Expression of results 13
8 Test report 14
Annex A (informative)
Apparatus for square cut elements 16
Annex B (normative) Test rig to measure cup 17 EN 13647:2011 - - -
^AЦ?IO^AЁ?Ь?^И?Й? WOOD FLOORING AND WOOD PANELING AND CLADDING.Determination of geometrical characteristics
This European Standard specifies methods of measuring the geometrical characteristics of wood flooring and wood panelling and cladding elements.
This European Standard does not specify sampling, which is intended to be found in the product standards or test methods and it does not apply to elements which are installed.
The following referenced documents are indispensable for the application 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.
EN 13756:2002, Wood flooring - Terminology
For the purposes of this document, the terms and definitions given in EN 13756:2002 apply.
4.1 General
The measurements shall be carried out only if relevant, taking the product standards into account.
4.2 Dimensions
The dimensions are determined by measuring any characteristic defined in the product standard and with appropriate tools
4.3 4.4 4.4.1 4.3 Angles
Determine square angles by measuring the distance (maximum value) between an edge of the element and the side of a square whose other side is in line with an adjacent edge of the element.
Determine other angles by the use ofa protractor.
4.4 Warp
4.4.1 Cup
Determine cup by measuring, at the middle of the width of the element, the distance separating the face of the element from the straight reference line joining the top arises of the edges of the element, see Figures 1 and 2.
1 - 0 2 - 3 - 4 - 5 - 1 Width
2 Face
3 Cup
4 Cross section
5 Reference line
Figure 1 - Example of convex cup
1 - 0 2 - 3 - 4 - 5 - Figure 2 - Example of concave cup
4.4.2 4.4.2 Bow
Determine bow by measuring, at the middle of the length of the element, the distance separating the face of the element from the straight reference line joining the end top arises of the element, see Figures 3 and 4.
NOTE If the maximum bow is not in the middle of the length, the measurement can be carried out at the appropriate place and this should be mentioned in the report.
1 - 2 - 3 - 4 - 5 - 6 - Figure 3 - Example of convex bow
1 - 2 - 3 - 4 - 5 - 6 - Figure 4 - Example of concave bow
4.4.3 4.4.3 Spring
Determine spring by measuring, at the middle of the length of the element, along the lengthwise edges of the element, the distance separating one edge from the straight reference line joining the two arises of that edge, see Figure 5.
NOTE The measurement is usually carried out on the edge bearing the groove.
1 - 2 - 3 - 4 - 5 - 0 1 Length
2 Face
3 Spring
4 Reference line
5 Width
Figure 5 - Example of spring (element viewed from above) 4.5 4.5 Lipping
Determine lipping by measuring the difference in the levels of the face of two adjacent elements when they are assembled together, see Figure 6.
1 - Figure 6 - Example of lipping
5 O 5.1 5.2 5.2.1 0 0 5.2.2 5.2.3 Ka K 5 EQUIPMENT
5.1 General
The equipment specified in this standard is given as an indication. Any other equipment providing the same results with at least the same accuracy may be used.
5.2 Equipment to measure the dimensions
5.2.1 Calliper
It shall have an accuracy of If used to measure the characteristics of tongue and groove profiles, it shall have a built-in depth rod.
It shall also have a useful measuring length corresponding to the width of the elements to be measured.
5.2.2 Micrometer
It shall have a limit deviation of 5.2.3 Graduated rule
It shall be used when the dimensions to be measured are out of the calliper's range.
It shall have a limit deviation of 5.3 5.3.1 5.3.2 5.3.3 5.4 5.4.1 l^c B ^ 5.3 Equipment to measure angle values
5.3.1 General
The design of the equipment shall be such as to allow the measurement as close as possible to the face of the element and preferably on the groove side if the element is tongued and grooved.
5.3.2 Equipment for square cut elements
A reference square with its longer arm consistent with the length of the elements to be checked and shall not be less than 210 mm.
Each arm shall have a fixed feeler at about 10 mm from the corner.
The longer arm shall have a second feeler, adjustable between 200 mm and 300 mm from the fixed feeler.
The shorter arm shall have a gauge, readable to the nearest 0,01 mm, adjustable to the width of the element to be controlled.
NOTE an example of such a square is shown in Figure A.1.
A calibration square to set the gauge to 0.
5.3.3 Equipment for mitre-cut elements
Protractor fitted with a vernier with a limit deviation of 5.4 Equipment to measure warp
5.4.1 Equipment to measure cup
A gauge with an accuracy of Figure B.1 gives an example of such a device and Figure B.2 shows gauging of the device.
1) 5.4.2 5.4.3 l^cmpy 5.4.4 l^ 5.4.5 - - 6 6.1 6.2 6.3 5.4.2 Calibration plate
A reference plate of suitable material to calibrate to zero the gauge fitted on the apparatus defined in 5.4.1.
5.4.3 Equipment to measure bow and spring
A straight ruler at least as long as the actual element and a gauge readable to the nearest 0,5 mm regarding bow and 0,1 mm regarding spring.
5.4.4 Equipment to measure lipping
A feeler gauge readable to the nearest 0,05 mm.
5.4.5 Conditioning equipment, if relevant
An enclosure capable of maintaining the following conditions:
- Climate A, defined by a relative humidity of (65 - Climate B, defined by a relative humidity of (50 6 PROCEDURE
6.1 Dimensions and shape
Measure the element in its delivered size at the reference moisture content given in the product standards or, if there is no product standard, at a given reference moisture content.
6.2 Conditioning
If specified, condition the element in one of the standard climates, defined in 5.4.5, to constant mass prior to measurement.
NOTE Constant mass is considered to be reached when the results of two successive weighing operations carried out at an internal of 24 h, do not differ by more than 0,1 % of the mass of the element.
6.3 Measurement and recording
Proceed as follows with the method of measurement and record the results every time.
Mark all position of measurements on the element. When there is a doubt about a measurement or the value is outside the limits, proceed immediately as follows: carry out two other measurements at 5 mm on each side of the point where the 6.4 6.4.1 6.4.1.1 0 6.4.1.2 6.4.2 6.5 6.5.1 6.5.2 first measurement was just taken. Average the three measurements.
6.4 Dimensions
6.4.1 Length and width of the element
6.4.1.1 For rectangular or square elements
With the calliper defined in 5.2.1 or, if it is out of its range, with the equipment defined in 5.2.3, measure length and width along two lines parallel to the arises as they are seen when the element is assembled. The lines of measurement shall be within 5 mm to 10 mm from edges. If the span between the edges exceeds 500 mm, one measurement shall be made, in addition, along a central line.
Mark all positions of measurements on the element.
6.4.1.2 For other elements
Make the measurements with one of the equipment defined in 5.2.
Mark all positions of measurements on the element.
Measure the length along the long edges between two adjacent angles (two measurements).
Measure the width perpendicularly to the edges.
6.4.2 Thickness of the element
Measure the thickness of the element with the calliper defined in 5.2.1 or with the micrometer defined in 5.2.2.
If the element is not longer than 500 mm, make two measurements each 5 mm to 10 mm from each end along the longitudinal lines of measurement defined in 6.4.1.
If the edge length exceeds 500 mm, make a third measurement at the middle of the element.
6.5 Additional dimensions, if relevant
6.5.1 Overall dimensions
Repeat the measurements in the same positions as used for measuring the dimensions in 6.4, but including the connecting parts.
6.5.2 Depth of the groove
Use the built-in depth rod of the calliper defined in 5.2.1.
If the length of the groove does not exceed 500 mm, make two measurements of the depth near the ends of the elements. If the length of the groove exceeds 500 mm, make three measurements, one in the middle of the length of the groove.
In both cases, the points of measurement shall be roughly symmetrical on the element. Refer to Figure 7.
1 width of the groove
2 depth of the groove
Figure 7 - Depth and width of the groove
6.5.3 0 6.5.3 Width of the tongue
Apply the same procedure as defined for the depth of the groove. Refer to Figure 8.
1 - 2 - 0 1 thickness of the tongue
2 width of the tongue
Figure 8 - Thickness and width of tongue
6.5.4 6.5.4 Thickness of the tongue
Measure the thickness of the tongue with the calliper defined in 5.2.1 at the base of the tongue.
If the element is not longer than 500 mm, make two measurements each 10 mm to 20 mm from each of the element.
If the edge length exceeds 500 mm, make a third measurement at the middle of the element. Refer to Figure 8.
6.5.5 0и?р?и?^а? 6.5.6 6.5.5 Width of the groove
Measure the width of the groove at the lowest part of the groove. Using the calliper defined in 5.2.1, apply the same procedure as for thickness of the tongue, see Figure 7.
6.5.6 Undercut
Apply the same procedure as defined for the depth of the grooves. Refer to Figure 9.
1 Undercut
1 - Figure 9 - Undercut
6.5.7 6.5.8 T 6.6 6.6.1 ^ 6.5.7 Thickness of the upper lip
Measure the thickness of the upper lip with the calliper defined in 5.2.1.
Apply the same procedure as for