ISO 4760:2022
Laminate flooring — Topical moisture resistance — Assembled joint
This document specifies a test method to evaluate moisture resistance to surface water exposure of a joined, floating, laminate flooring assembly/element. This document also establishes criteria for rating and assessing performance.
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Materials needed
4.1 Planks
4.2 Plastic ring
4.3 Beaker
4.4 Distilled or de-ionized water
4.5 Dye colour
4.6 Sealant
4.7 Measuring device
5 Conditioning
6 Procedure
6.1 Assembling the test specimen
6.1.1 Inspection
6.1.2 Cutting
6.1.3 Cleaning
6.1.4 Assembly
6.1.5 Gaps
6.1.6 Test positions
6.1.7 Sealant
6.1.8 Ring placement
6.1.9 Weights
6.1.10 Zeroing gauge
6.1.11 Initial height measurement
6.1.12 Water
6.1.13 Wet swell exposure
6.2 Qualitative rating for wet swell
6.3 Quantitative rating for wet swell
6.4 Qualitative rating for recovery swell
6.5 Quantitative rating for recovery swell
7 Rating
7.1 Qualitative rating
7.2 Quantitative wet swell
7.3 Qualitative rating and quantitative recovery swell
8 Calculations
8.1 Surface swell calculation
8.1.1 General
8.1.2 Wet swell sample average
8.1.3 Wet swell final average
8.1.4 Qualitative wet swell rating final average
8.2 Recovery swell measurements
8.2.1 General
8.2.2 Recovery swell calculation
8.2.3 Recovery swell sample average
8.2.4 Recovery swell final average
8.2.5 Qualitative recovery swell rating final average
9 Statistics – Precision and bias – Interlaboratory studies
10 Report
Annex A (informative) Seam/joint swell – Table of individual results
Annex B (informative) Example of photos to match with subjective ratings
Annex C (informative) Topical moisture resistance worksheet – Surface swell evaluation worksheet
Annex D (informative) Water tightness of the joints
Bibliography
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Materials needed
4.1 Planks
4.2 Plastic ring
4.3 Beaker
4.4 Distilled or de-ionized water
4.5 Dye colour
4.6 Sealant
4.7 Measuring device
5 Conditioning
6 Procedure
6.1 Assembling the test specimen
6.1.1 Inspection
6.1.2 Cutting
6.1.3 Cleaning
6.1.4 Assembly
6.1.5 Gaps
6.1.6 Test positions
6.1.7 Sealant
6.1.8 Ring placement
6.1.9 Weights
6.1.10 Zeroing gauge
6.1.11 Initial height measurement
6.1.12 Water
6.1.13 Wet swell exposure
6.2 Qualitative rating for wet swell
6.3 Quantitative rating for wet swell
6.4 Qualitative rating for recovery swell
6.5 Quantitative rating for recovery swell
7 Rating
7.1 Qualitative rating
7.2 Quantitative wet swell
7.3 Qualitative rating and quantitative recovery swell
8 Calculations
8.1 Surface swell calculation
8.1.1 General
8.1.2 Wet swell sample average
8.1.3 Wet swell final average
8.1.4 Qualitative wet swell rating final average
8.2 Recovery swell measurements
8.2.1 General
8.2.2 Recovery swell calculation
8.2.3 Recovery swell sample average
8.2.4 Recovery swell final average
8.2.5 Qualitative recovery swell rating final average
9 Statistics – Precision and bias – Interlaboratory studies
10 Report
Annex A (informative) Seam/joint swell – Table of individual results
Annex B (informative) Example of photos to match with subjective ratings
Annex C (informative) Topical moisture resistance worksheet – Surface swell evaluation worksheet
Annex D (informative) Water tightness of the joints
Bibliography