AS 2281-1993

1 - AS 2281-1993 FLEXIBLE CELLULAR POLYURETHANE FOR SEAT CUSHIONING AND BEDDING
4 - PREFACE
4 - CONTENTS
5 - 1 SCOPE
5 - 2 REFERENCED DOCUMENTS
5 - 3 DEFINITIONS
5 - 3.1 Accelerated ageing
5 - 3.2 Apparent density
5 - 3.3 Compression set
5 - 3.4 Elongation
6 - 3.5 Flexible cellular polyurethane
6 - 3.6 Hardness
6 - 3.7 Indentation factor
6 - 3.8 Reconstituted cellular polyurethane
6 - 3.9 Recovery ratio
6 - 3.10 Resilience
6 - 3.11 Tear resistance
6 - 3.12 Tensile strength
6 - 4 CLASSIFICATION
6 - 4.1 Types
6 - 4.2 Grades
7 - 5 REPAIR OF FINISHED PRODUCTS
7 - 6 SURFACE CONDITION
7 - 7 TOLERANCES ON DIMENSIONS
7 - 8 PHYSICAL REQUIREMENTS
7 - 8.1 Test requirements
7 - 8.2 Test specimens
7 - 9 COMBUSTION CHARACTERISTICS
7 - 9.1 General
7 - 9.2 Smoke release
7 - 10 MARKING
10 - APPENDIX A - GUIDE TO APPLICATIONS
10 - A1 SCOPE
10 - A2 GENERAL
11 - A3 FOAM TYPES
12 - APPENDIX B - COMPARISON OF IFD 40% HARDNESS RANGES AND GRADES ACCORDING TO SUPERSEDED AS 2281-1979
12 - B1 SCOPE
13 - APPENDIX C - FIRE BEHAVIOUR OF FLEXIBLE CELLULAR POLYURETHANES
13 - C1 SCOPE
13 - C2 GENERAL

Specifies requirements for flexible load-bearing cellular polyurethane for use in seat cushioning, bedding and similar applications.

This Standard sets out requirements for flexible load-bearing cellular polyurethane, manufactured in block, flat or profiled sheet and strip form, in moulded and fabricated shapes, and as reconstituted material, for use in seat cushioning, bedding and similar applications.NOTES:1 Appendix A provides a guide to the grade and thickness of cellular polyurethane foam that may be used for various applications.2 Appendix B provides a comparison of the nominal hardness of foams specified in this Standard and the previous edition.3 Appendix C provides discussion on the fire behaviour of flexible cellular polyurethanes.

First published as AS K165-1967.
Revised and redesignated AS 2281-1979.
Second edition 1993.
Incorporating: Amdt 1-1994