ISO 9073-14:2023
Nonwovens — Test methods — Part 14: Coverstock wetback (simulated urine)
This document specifies a test method for the determination of the ability of diaper coverstock to resist the transport back onto the skin of a liquid which has already penetrated the coverstock.
This test corresponds with repeated liquid strike-through time according to NWSP 070.7.
This test method is intended for quality control and is designed for comparison of wetback for different nonwoven coverstocks and treatments. It does not simulate in use conditions for finished products.
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Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Reagents and materials
6 Apparatus
7 Conditioning
8 Sampling
8.1 General
8.2 Lot size
8.3 Sampling
9 Procedure
10 Expression of results
11 Precision
12 Test report
Annex A (informative) Precision
Annex B (informative) Remarks
Annex C (informative) Detailed figures of strike-through tester apparatus
Bibliography
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Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Reagents and materials
6 Apparatus
7 Conditioning
8 Sampling
8.1 General
8.2 Lot size
8.3 Sampling
9 Procedure
10 Expression of results
11 Precision
12 Test report
Annex A (informative) Precision
Annex B (informative) Remarks
Annex C (informative) Detailed figures of strike-through tester apparatus
Bibliography