BS EN 12237:2003

Foreword
1 Scope
2 Normative references
3 Terms, definitions and symbols
   3.1 Terms and definitions
   3.2 Symbols
4 Classification
5 Requirements
   5.1 Leakage
   5.2 Strength
6 Test rig specification
7 Test procedure strength and leakage
   7.1 Test sample
   7.2 Test method
   7.3 Correction of leakage test result
8 Test report
Annex A (informative) Recommended procedure if the permitted
        air leakage rate is exceeded when testing a specific
        installation
Bibliography

Defines requirements and test methods for strength and air leakage of circular ductwork used in air conditioning and ventilation systems in buildings. The requirements and methods applies to rectangular ductwork in respect of air leakage.

This standard specifies requirements and test methods for strength and air leakage of circular ductwork used in air conditioning and ventilation systems in buildings. The standard is intended to establish the mechanical strength and leakage required to verify the fitness for the intended service as installed ductwork. The standard is primarily intended for in-situ measurements, but provisions are also made for its use in laboratory testing. The requirements and methods are applicable also to rectangular ductwork in respect of air leakage.