BS 6821:1988
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
View Superseded by
Methods for aerodynamic testing of dampers and valves
Hardcopy , PDF
15-06-1999
English
30-11-1988
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Foreword
Committees responsible
Methods
1. Scope
2. Definitions
3. Symbols and suffixes
4. Instrumentation
5. Leakage tests
6. Tests for flow rate/pressure characteristics
Tables
1. Symbols
2. Ranges and accuracies of measurement of air
flowmeters not employed to determine leakage rate
3. Ranges and accuracies of measurement of air
flowmeters employed to determine leakage rate
4. Ranges, accuracies and scale intervals for pressure
measuring instruments
5. Damper and valve classifications
Figures
1. Typical test duct arrangement for leakage tests
2. Typical test duct arrangement for flow/rate
pressure characteristics tests
3. Typical graph of log of static gauge pressure
against log of corresponding flow rate
Methods of testing for dampers and valves used in air distribution systems with pressures up to 2500 Pa.
| Committee |
RHE/2
|
| DocumentType |
Standard
|
| Pages |
12
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy |
| Standards | Relationship |
| ISO 7244:1984 | Similar to |
| 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 1042-2.1:1983 | Measurement of fluid flow in closed conduits. Velocity area methods Method using Pitot static tubes |
| BS 1042-1.2(1984) : LATEST | SPEC. FOR SQUARE-EDGED ORIFICE PLATES, NOZZLES (WITH DRAIN HOLES, IN PIPES BELOW 50MM DIAMETER, AS INLET AND OUTLET DEVICES) AND OTHER ORIFICE PLATES AND BORDA INLETS |
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