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ASTM D 7278 : 2016 : REDLINE

ASTM D 7278 : 2016 : REDLINE

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by
superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.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 Guide for Prediction of Analyzer Sample System Lag Times

Available format(s)

PDF

Superseded date

21-01-2022

Language(s)

English

Published date

01-04-2016

Publisher

American Society for Testing and Materials

CONTAINED IN VOL. 05.04, 2018 Specifies the application of routine calculations to estimate sample system lag time, in seconds, for gas, liquid, and mixed phase systems.

1.1This guide covers the application of routine calculations to estimate sample system lag time, in seconds, for gas, liquid, and mixed phase systems.

1.2This guide considers the sources of lag time from the process sample tap, tap conditioning, sample transport, pre-analysis conditioning and analysis.

1.3Lag times are estimated based on a prediction of flow characteristics, turbulent, non turbulent, or laminar, and the corresponding purge requirements.

1.4Mixed phase systems prevent reliable representative sampling so system lag times should not be used to predict sample representation of the stream.

1.5The values stated in inch-pound 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 and health practices and determine the applicability of regulatory limitations prior to use.

Committee
D 02
DocumentType
Redline
Pages
9
PublisherName
American Society for Testing and Materials
Status
Superseded
SupersededBy

ASTM D 6122 : 2016-02 PRACTICE FOR VALIDATION OF THE PERFORMANCE OF MULTIVARIATE ONLINE, AT-LINE, AND LABORATORY INFRARED SPECTROPHOTOMETER BASED ANALYZER SYSTEMS
ASTM D 7825 : 2012 Standard Guide for Generating a Process Stream Property Value through the Application of a Process Stream Analyzer
ASTM D 7453 : 2018 : REDLINE Standard Practice for Sampling of Petroleum Products for Analysis by Process Stream Analyzers and for Process Stream Analyzer System Validation
ASTM D 7808 : 2012 Standard Practice for Determining the Site Precision of a Process Stream Analyzer on Process Stream Material

ASTM D 6122 : 2016-02 PRACTICE FOR VALIDATION OF THE PERFORMANCE OF MULTIVARIATE ONLINE, AT-LINE, AND LABORATORY INFRARED SPECTROPHOTOMETER BASED ANALYZER SYSTEMS

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