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ASTM D 3796 : 2009 : R2016

Current
Current

The latest, up-to-date edition.

Standard Practice for Calibration of Type S Pitot Tubes
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

09-01-2016

CONTAINED IN VOL. 11.03, 2017 Defines the determination of Type S pitot tube coefficients in the gas velocity range from 305 to 1524 m/min or 5.08 to 25.4 m/s (1000 to 5000 ft/min).

1.1This practice covers the determination of Type S pitot tube coefficients in the gas velocity range from 305 to 1524 m/min or 5.08 to 25.4 m/s (1000 to 5000 ft/min). The method applies both to the calibration of isolated Type S pitot tubes (see 5.1), and pitobe assemblies.

1.2This practice outlines procedures for obtaining Type S pitot tube coefficients by calibration at a single-velocity setting near the midpoint of the normal working range. Type S pitot coefficients obtained by this method will generally be valid to within ±3 % over the normal working range. If a more precise correlation between Type S pitot tube coefficient and velocity is desired, multivelocity calibration technique (Annex A1) should be used. The calibration coefficients determined for the Type S pitot tube by this practice do not apply in field use when the flow is nonaxial to the face of the tube.

1.3This practice may be used for the calibration of thermal anemometers for gas velocities in excess of 3 m/s (10 ft/s).

1.4The values stated in SI units are to be regarded as standard. The values given in parentheses are mathematical conversions to inch-pound units that are provided for information only and are not considered standard.

1.5This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Committee
D 22
DocumentType
Standard Practice
Pages
13
ProductNote
Reconfirmed 2016
PublisherName
American Society for Testing and Materials
Status
Current
Supersedes

ASTM D 6831 : 2011 : R2018 Standard Test Method for Sampling and Determining Particulate Matter in Stack Gases Using an In-Stack, Inertial Microbalance
ASTM D 3154 : 2014 Standard Test Method for Average Velocity in a Duct (Pitot Tube Method)
ASTM D 3685/D3685M : 2013 Standard Test Methods for Sampling and Determination of Particulate Matter in Stack Gases
ASTM D 6784 : 2016 Standard Test Method for Elemental, Oxidized, Particle-Bound and Total Mercury in Flue Gas Generated from Coal-Fired Stationary Sources (Ontario Hydro Method)
ASTM D 3464 : 1996 : R2014 Standard Test Method for Average Velocity in a Duct Using a Thermal Anemometer
ASTM D 6331 : 2016 Standard Test Method for Determination of Mass Concentration of Particulate Matter from Stationary Sources at Low Concentrations (Manual Gravimetric Method)

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