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1980 Edition, January 1, 1980

Complete Document

Determining the Concentration of Particulate Matter in a Gas Stream

Includes all amendments and changes through Reaffirmation Notice , 1985

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ASME B31.1

Product Details:

  • Revision: 1980 Edition, January 1, 1980
  • Published Date: January 1985
  • Status: Active, Most Current
  • Document Language: English
  • Published By: ASME International (ASME)
  • Page Count: 133
  • ANSI Approved: Yes
  • DoD Adopted: No

Description / Abstract:

Concentration of Particulate Matter

This Code prescribes methods for measuring the average weight concentration of particulate matter carried in a gas stream. Measurement on any other basis (e.g., particle count, dust spot, opacity, etc.) is beyond the scope of this Code.

Gas Flow Measurement

Determination of total gas flow may be based on measurement of velocity pressure and gas density at representative points in the duct cross section, on actual combustion calculations (stoichiometry), or by data from calibrated gas metering devices. Alternate methods for measuring total gas flow rate may be used by agreement of all the concerned parties.

Particle Size Measurement

The scope of this Code does not include the measurement of particle size distribution. Test procedures for this purpose are contained in ASME Performance Test Code 28. While some in situ type samplers designed for the collection of particulate matter in various size fractions may have a limited capability for determining total particulate matter concentrations in a gas sample, data thus obtained should only be used for the measurement of particle size distribution and not for the weight rate of flow of particulate matter in the gas stream.