ISO 24337:2019
Laminate floor coverings — Determination of geometrical characteristics
This document gives test methods to determine the dimensional variance between elements of laminate floor coverings in a manufactured free-standing shape (unrestricted) in respect of thickness, length, width, squareness, straightness, width flatness, length flatness, openings between assembled elements and height differences between assembled elements.
NOTE These test methods are also applicable to other mechanically assembled panels, e.g. modular multilayer floorings.
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Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols
5 Test apparatus
6 Test specimen
6.1 General
6.2 Sampling
7 Conditioning
8 Test procedure
8.1 Determination of thickness t
8.1.1 Determination of thickness, t, of an element without pre-attached underlay
8.1.2 Determination of thickness, t, of an element with pre-attached underlay
8.2 Determination of length l
8.3 Determination of width w
8.4 Determination of squareness q
8.5 Determination of straightness s
8.6 Determination of width flatness fw
8.6.1 Adjustment and calibration of the apparatus
8.6.2 Measuring
8.7 Determination of length flatness fl
8.8 Determination of openings between elements o
8.8.1 Assembling
8.8.2 Measuring
8.9 Determination of height difference between elements h
8.9.1 Assembling
8.9.2 Measuring
9 Calculations and expression of results
9.1 Thickness t
9.2 Length l
9.3 Width w
9.4 Squareness q
9.5 Straightness s
9.6 Width flatness fw
9.7 Length flatness fl
9.8 Openings between elements o
9.9 Height difference between elements h
10 Test report
Bibliography
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Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols
5 Test apparatus
6 Test specimen
6.1 General
6.2 Sampling
7 Conditioning
8 Test procedure
8.1 Determination of thickness t
8.1.1 Determination of thickness, t, of an element without pre-attached underlay
8.1.2 Determination of thickness, t, of an element with pre-attached underlay
8.2 Determination of length l
8.3 Determination of width w
8.4 Determination of squareness q
8.5 Determination of straightness s
8.6 Determination of width flatness fw
8.6.1 Adjustment and calibration of the apparatus
8.6.2 Measuring
8.7 Determination of length flatness fl
8.8 Determination of openings between elements o
8.8.1 Assembling
8.8.2 Measuring
8.9 Determination of height difference between elements h
8.9.1 Assembling
8.9.2 Measuring
9 Calculations and expression of results
9.1 Thickness t
9.2 Length l
9.3 Width w
9.4 Squareness q
9.5 Straightness s
9.6 Width flatness fw
9.7 Length flatness fl
9.8 Openings between elements o
9.9 Height difference between elements h
10 Test report
Bibliography