NEN EN 1548 : 2007

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 General
5 Principle
6 Apparatus
   6.1 Metal plate
   6.2 Metal mask
   6.3 Glass plate
   6.4 Separation means
   6.5 Thermometer
   6.6 Balance
   6.7 Dial micrometer
   6.8 Calliper gauge
   6.9 Ventilated oven
   6.10 Bitumen
7 Sampling
8 Preparation of test specimens
9 Procedure
   9.1 Test bitumen
   9.2 Temperature
   9.3 Exposure duration
   9.4 Exposure to contact with bitumen
        9.4.1 Test specimens
        9.4.2 Reference specimens
   9.5 Determination of changes in mass
        9.5.1 Test specimen
        9.5.2 Initial value
        9.5.3 Exposure
        9.5.4 Measurement of mass
   9.6 Determination of changes in Young's Modulus
        9.6.1 Test specimen
        9.6.2 Exposure
        9.6.3 Determination of Young's Modulus
10 Expression of results
   10.1 Changes in mass
        10.1.1 Change in mass
        10.1.2 Change in mass per unit area
        10.1.3 Percentage change in mass
   10.2 Young's Modulus
11 Test report
Annex A (informative) - Additional information
Annex B (informative) - Calibration of apparatus
        B.1 Temperature calibration
        B.2 Ventilation calibration

Describes a method of exposing test specimens of plastic and rubber sheets for roofing free from all external restraint, to contact with bitumen at an elevated temperature and methods for determining the changes in properties resulting from such exposure.