ASTM D 6331 : 2024
Current
The latest, up-to-date edition.
Standard Test Method for Determination of Mass Concentration of Particulate Matter from Stationary Sources at Low Concentrations (Manual Gravimetric Method)
Hardcopy , PDF
English
01-10-2024
Important note : Users cannot be edited or removed once added to your Multi user PDF.| Committee |
D 22
|
| DocumentType |
Test Method
|
| Pages |
15
|
| PublisherName |
American Society for Testing and Materials
|
| Status |
Current
|
| Supersedes |
1.1This test method2 covers a method for the measurement of particulate matter (dust) concentration in emission gases in concentrations below 20 mg/m3 under standard conditions, with special emphasis of concentrations around 5 mg/m3.
1.2To meet the requirements of this test method, the particulate sample is weighed to a specified level of accuracy. At low dust concentrations, this is achieved by:
1.2.1Precise and repeatable weighing procedures,
1.2.2Using low tare weight weighing dishes,
1.2.3Extending the sampling time at conventional sampling rates, or
1.2.4Sampling at higher rates at conventional sampling times (high-volume sampling).
1.3This test method differs from Test Method D3685/D3685M by requiring the mass measurement of filter blanks, specifying weighing procedures, and requiring monitoring of the flue gas flow variability over the testing period. It requires that the particulate matter collected on the sample filter have a mass at least five times a positive mass difference on the filter blank. High volume sampling techniques or an extension of the sampling time may be employed to satisfy this requirement. This test method has tightened requirements on sampling temperature fluctuations and isokinetic sampling deviation. This test method has eliminated the in-stack filtration technique.
1.4This test method may be used for calibration of automated monitoring systems (AMS). If the emission gas contains unstable, reactive, or semi-volatile substances, the measurement will depend on the filtration temperature.
1.5The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.6This 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.7This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
| ASTM D 6831 : 2011 : R2018 | Standard Test Method for Sampling and Determining Particulate Matter in Stack Gases Using an In-Stack, Inertial Microbalance |
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