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ASTM D 7520 : 2016

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by
superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Standard Test Method for Determining the Opacity of a Plume in the Outdoor Ambient Atmosphere
Available format(s)

Hardcopy , PDF

Superseded date

25-03-2023

Language(s)

English

Published date

29-04-2016

1.1This test method describes the procedures to determine the opacity of a plume, using digital imagery and associated hardware and software. The aforementioned plume is caused by particulate matter emitted from a stationary point source in the outdoor ambient environment.

1.2The opacity of emissions is determined by the application of a Digital Camera Opacity Technique (DCOT) that consists of a Digital Still Camera, Analysis Software, and the Output Function’s content to obtain and interpret digital images to determine and report plume opacity.

1.3This method is suitable to determine the opacity of plumes from zero (0) percent to one hundred (100) percent.

1.4Conditions that shall be considered when using this method to obtain the digital image of the plume include the plume’s background, the existence of condensed water in the plume, orientation of the Digital Still Camera to the plume and the sun (see Section 8).

1.5This standard describes the procedures to certify the DCOT, hardware, software, and method to determine the opacity of the plumes.

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 and health practices and determine the applicability of regulatory limitations prior to use.

Committee
D 22
DocumentType
Test Method
Pages
22
PublisherName
American Society for Testing and Materials
Status
Superseded
SupersededBy
Supersedes

ASTM D 1356 : 2015 Standard Terminology Relating to Sampling and Analysis of Atmospheres
ASTM D 1356 : 2017 Standard Terminology Relating to Sampling and Analysis of Atmospheres
ASTM E 691 : 2020 Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
ASTM D 1356 : 2015 : REV B Standard Terminology Relating to Sampling and Analysis of Atmospheres
ASTM E 691 : 2019 : EDT 1 Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
ASTM D 1356 : 2014 : REV A Standard Terminology Relating to Sampling and Analysis of Atmospheres
ASTM E 691 : 2022 Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
ASTM E 691 : 2009 Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
ASTM D 1356 : 2015 : REV A Standard Terminology Relating to Sampling and Analysis of Atmospheres
ASTM D 1356 : 2005 : R2010 Standard Terminology Relating to Sampling and Analysis of Atmospheres
ASTM E 691 : 2021 Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
ASTM D 1356 : 2020 Standard Terminology Relating to Sampling and Analysis of Atmospheres
ASTM D 1356 : 2000 : REV A Standard Terminology Relating to Sampling and Analysis of Atmospheres
ASTM D 1356 : 2014 : REV B Standard Terminology Relating to Sampling and Analysis of Atmospheres
ASTM D 1356 : 2014 Standard Terminology Relating to Sampling and Analysis of Atmospheres
ASTM D 1356 : 2005 Standard Terminology Relating to Sampling and Analysis of Atmospheres

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