BS 6069-4.3:1992
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Characterization of air quality. Stationary source emissions Method for the manual gravimetric determination of concentration and mass flow rate of particulate material in gas-carrying ducts
Hardcopy , PDF
24-02-2003
English
15-10-1992
Committees responsible
National foreword
Method
1. Scope
2. Normative reference
3. Definitions
4. Symbols with their corresponding units, subscripts
and index
5. Principle
6. Summary of the method
7. Review of measurements and calculations
8. Apparatus
9. Advance preparations
10. Preparatory work before sampling
11. Sampling procedure
12. Weighing
13. Method of calculation
14. Accuracy
15. Test report
Annexes
A. (normative) Factors affecting the accuracy of the
method
b. (normative) Methods and rules for determining the
position of sampling points in circular and
rectangular ducts
C. (normative) Care and use of Pitot static tubes
d. (normative) Calibration of Pitot tubes
E. (normative) Recommendations regarding sampling
locations not meeting the requirement of a straight
duct length of seven duct diameters
F. (normative) Alternative method of determining the
particulate mass flow rate in the duct
G. (informative) Bibliography
Tables
1. Symbols and their corresponding units
2. Subscript and index
3. List of equipment parts
4. Minimum number of sampling points for circular ducts
5. Minimum number of sampling points for rectangular
ducts
B.1 Values of Ki as a percentage - General rule for
circular ducts
B.2 Values of Ki as a percentage - Tangential rule for
circular ducts
E.1 Minimum sampling location distances from obstacles
Figures
1. Illustration of definitions in relation to a
circular duct
2. Isokinetic sampling
3. Example of a measuring equipment arrangement
(see 8.2) without water removal upstream of the
gas metering device
4. Example of a measuring equipment arrangement
(see 8.2), with water removal upstream of the gas
metering device
5. Diagram of measurement and calculation, with water
removal before measurement of gas sample volume
6. Diagram of measurement and calculation, without
water removal before measurement of gas sample
volume
7. Example of shape of the nozzle (1)
B.1 Sampling point positions in circular ducts - General
rule (showing positions for ducts over 2 m in
diameter)
B.2 Sampling point positions in circular ducts -
Tangential rule (showing positions for ducts over
2 m in diameter)
B.3 Illustrations of sampling point positions in
rectangular (and square) ducts
D.1 Schematic illustration of Pitot static tubes
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