PREN 1751 : DRAFT 2011
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
01-01-2014
01-12-2013
Foreword
1 Scope
2 Normative references
3 Definitions and symbols
4 Instrumentation
5 Leakage tests
6 Flow rate and pressure tests
Annex A (normative) - Mechanical testing of
dampers and valves
Annex B (informative) - Thermal transmittance
through dampers and valves
Annex C (normative) - Classification of a damper
or valve leakage
Annex D (informative) - Effect of Duct Configuration
on Pressure Loss Coefficient
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