ASTM D7520 - 16 - Standard Test Method for Determining the Opacity of a Plume in the Outdoor Ambient Atmosphere

ASTM D7520 - 16

Standard Test Method for Determining the Opacity of a Plume in the Outdoor Ambient Atmosphere

Status : Current   Published : April 2016

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PDF

Format
HARDCOPY



1.1 This 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.

1.2 The 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.

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

1.4 Conditions 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).

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

1.6  This 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.




Standard NumberASTM D7520 - 16
TitleStandard Test Method for Determining the Opacity of a Plume in the Outdoor Ambient Atmosphere
StatusCurrent
Publication Date01 April 2016
Normative References(Required to achieve compliance to this standard)No other standards are normatively referenced
Informative References(Provided for Information)No other standards are informatively referenced
Descriptors Dig camera, Dig image, Dig still camera, Opacity
ICS13.040.20
PublisherASTM
FormatA4
DeliveryYes
Pages22
File Size301 KB
Price£58.00


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