SN EN ISO 4638 : 1996
Current
The latest, up-to-date edition.
POLYMERIC MATERIALS, CELLULAR FLEXIBLE - DETERMINATION OF AIR FLOW PERMEABILITY
12-01-2013
Committees responsible
National foreword
Foreword
Method
0. Introduction
1. Scope and field of application
2. References
3. Principle
4. Symbols and terminology
5. Apparatus
6. Test pieces
7. Testing conditions
8. Procedure
9. Calculation and expression of results
10. Test report
Figures
1. Basic principle of the test (according to Darcy's laws)
2. Schematic diagram of an airflow permeability apparatus
3. Measurement cell (cylindrical section)
Annex
ZA. (normative) Normative references to international
publications with their relevant European publications
Specifies a method for the determination of the permeability of flexible cellular polymeric materials to air flow. Applies to test pieces cut from products of cellular material. Useful in: ensuring product quality (quality assurance); studying the structure of cellular products in connection with their physical properties and their method of manufacture.
| DocumentType |
Standard
|
| PublisherName |
Swiss Standards
|
| Status |
Current
|
| Standards | Relationship |
| UNI EN ISO 4638 : 1997 | Identical |
| UNE-EN ISO 4638:1996 | Identical |
| BS EN ISO 4638:1995 | Identical |
| ISO 4638:1984 | Identical |
| EN ISO 4638:1995 | Identical |
| DIN ISO 4638:1993-07 | Identical |
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