BS 4857-1:1972
Current
The latest, up-to-date edition.
Methods for testing and rating terminal reheat units for air distribution systems Thermal and aerodynamic performance
Hardcopy , PDF
English
11-10-1972
Important note : Users cannot be edited or removed once added to your Multi user PDF.
Co-operating organizations
Foreword
Methods
1 Scope
2 Definitions
3 Nomenclature
4 Instrumentation
5 Test for casing leakage
6 Test of constant flow rate controller characteristics
7 Test for air flow pressure characteristics
8 Heat transfer measurements
9 Rating examples
Figures
1 Thermometer pockets in pipes less than 75 mm diameter
2 Typical open circuit test equipment
3 Typical closed circuit test equipment
4 Inlet air supply
5 Piezometer ring and inverted tube pattern manometer
6 Water temperature correction factor
7 Thermal characteristics
8 Rating example
Describes methods of thermal and aerodynamic testing and rating for high pressure terminal reheat units with or without flow rate controllers. It describes the equipment required and gives instructions for the calculation, interpretation and interpolation of results.
| Committee |
RHE/6
|
| DevelopmentNote |
Supersedes 71/30799 DC. (07/2005) Reviewed and confirmed by BSI, December 2012. (11/2012)
|
| DocumentType |
Standard
|
| Pages |
22
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
This Part of this British Standard describes methods of thermal and aerodynamic testing and rating for high pressure terminal reheat units with or without flow rate controllers. It describes the equipment required and gives instructions for the calculation, interpretation and interpolation of results.
| BS 4857-2:1978 | Methods for testing and rating terminal reheat units for air distribution systems Acoustic testing and rating |
| BS 1042-1.1(1981) : 1981 | MEASUREMENT OF FLUID FLOW IN CLOSED CONDUITS - SPECIFICATION FOR SQUARE-EDGED ORIFICE PLATES, NOZZLES AND VENTURI TUBES INSERTED IN CIRCULAR CROSS SECTION CONDUITS RUNNING FULL |
| BS 1041:1943 | Code for temperature measurement |
| BS 1042-2(1964) : LATEST |
Access your standards online with a subscription
Features
-
Simple online access to standards, technical information and regulations.
-
Critical updates of standards and customisable alerts and notifications.
-
Multi-user online standards collection: secure, flexible and cost effective.