NF EN 20140-10 : 1993

Cooperating organizations
National foreword
Foreword
Method
1. Scope
2. Normative references
3. Definition
4. Equipment
5. Laboratory requirements
6. Installation and operation of test objects
7. Test procedure and evaluation
8. Precision
9. Expression of results
10. Test report
Annexes
A. (normative) Correction of flanking transmission
B. (normative) Local changing of wall thickness
C. (normative) Simulation of corner and edge positions
Figures
B.1 Local decrease of wall thickness
C.1 Drawing showing in principle how to simulate a
     corner position by attaching reflective panels at
     right angles to the partition wall mounted in the
     test opening
National annexes
NA (informative) Committees responsible
NB (informative) Cross-reference

Gives a laboratory method of measuring airborne sound insulation under diffuse field conditions of certain small building elements. Applies to building elements excluding doors and windows with an area of under than 1 square meter and which occur in various discrete sizes with sell defined material dimensions and which transmit sound between two adjacent rooms or between one room and the open air independently of the adjoining building elements. Coverage includes definition, equipment, laboratory requirements and precision. Also includes annexes and diagrams.