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AS 2498.7-1993
$63.00
Methods of testing rigid cellular plastics, Method 7: Determination of volume percentage of open and closed cells
Specifies test methods for rigid cellular plastics.
Table of contents
Header
About this publication
1 SCOPE
2 REFERENCED DOCUMENTS
3 DEFINITIONS
4 PRINCIPLE
5 APPARATUS
5.1 P Method
5.2 V Method
6 TEST SPECIMENS
6.1 Dimensions
6.2 Preparation
6.3 Number
7 CONDITIONING AND TESTING ATMOSPHERES
8 PROCEDURE
8.1 Determination of geometrical surface (S) and geometrical volume (Vg) of test specimen
8.2 Determination of impenetrable volume (Vi) by P method
8.2.1 Principle
8.2.2 Calibration of the apparatus
8.2.3 Procedure
8.2.4 Calculation
8.3 Determination of the impenetrable volume (Vi) by V method
8.3.1 Calibration of the apparatus
8.3.2 Procedure
8.4 Correction for cells opened by cutting during specimen preparation
9 CALCULATIONS
9.1 Apparent volume percentage of open cells
9.2 Corrected volume percentage of open cells
9.3 Corrected volume percentage of closed cells
10 TEST REPORT
APPENDIX A
A1 STABILITY OF REFERENCE VOLUME
A2 INFLUENCE OF ATMOSPHERIC PRESSURE
A3 CHOICE OF THE VALUE OF Pe (P METHOD) OR δVK (V METHOD)
A4 INFLUENCE OF TEMPERATURE
A5 INFLUENCE OF HUMIDITY
A6 INFLUENCE OF GAS OCCLUDED IN TEST SPECIMENS
Cited references in this standard
Please select a variation to view its description.
| Published | 12/07/1993 |
|---|---|
| Pages | 14 |
Please select a variation to view its pdf.
