BS EN 1849-2:2009 PDF

BS EN 1849-2:2009 Flexible sheets for waterproofing. Determination of thickness and mass per unit area. Plastic and rubber sheets BS EN 1849-2 European Standard specifies methods for the determination of the thickness and mass per unit area of plastic and rubber sheets for roof waterproofing. Contents of BS EN 1849-2: Foreword Introduction 1 Scope 2 Normative references 3 Terms and definitions 4 Sampling 5 Determination of thickness 5.1 Principle 5.2 Apparatus 5.3 Test specimens 5.4 Procedure 5.4.1 General 5.4.2 Mechanical measurement 5.4.3 Optical measurement 5.5 Expression of results 6 Determination of mass per unit area 6.1 Principle 6.2 Apparatus 6.3 Test specimens 6.4 Procedure 6.5 Expression of results 7 Test report Annex A (informative) Example of the cut cross-section of a membrane