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ASTM D 7808 : 2012

ASTM D 7808 : 2012

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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Standard Practice for Determining the Site Precision of a Process Stream Analyzer on Process Stream Material

Available format(s)

Hardcopy , PDF

Superseded date

24-08-2018

Superseded by

ASTM D 7808 : 2018

Language(s)

English

Published date

01-10-2012

Publisher

American Society for Testing and Materials

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Hardcopy - English
PDF - English
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CONTAINED IN VOL. 05.04, 2017 Defines a procedure to quantify the site precision of a process analyzer via repetitive measurement of a single process sample over an extended time period.

Committee
D 02
DocumentType
Standard Practice
Pages
5
PublisherName
American Society for Testing and Materials
Status
Superseded
SupersededBy

1.1This practice describes a procedure to quantify the site precision of a process analyzer via repetitive measurement of a single process sample over an extended time period. The procedure may be applied to multiple process samples to obtain site precision estimates at different property levels

1.1.1The site precision is required for use of the statistical methodology of D6708 in establishing the correlation between analyzer results and primary test method results using Practice D7235.

1.1.2The site precision is also required when employing the statistical methodology of D6708 to validate a process analyzer via Practices D3764 or D6122.

1.2This practice is not applicable to in-line analyzers where the same quality control sample cannot be repetitively introduced.

1.3This practice is meant to be applied to analyzers that measure physical properties or compositions.

1.4This practice can be applied to any process analyzer system where the feed stream can be captured and stored in sufficient quantity with no stratification or stability concerns.

1.4.1The captured stream sample introduction must be able to meet the process analyzer sample conditioning requirements, feed temperature and inlet pressure.

1.4.2This practice is designed for use with samples that are single liquid phase, petroleum products whose vapor pressure, at sampling and sample storage conditions, is less than or equal to 110 kPa (16.0 psi) absolute and whose D86 final boiling point is less than or equal to 400°C (752°F).

Note 1—The general procedures described in this practice may be applicable to materials outside this range, including multiphase materials, but such application may involve special sampling and safety considerations which are outside the scope of this practice.

1.5The values for operating conditions are stated in SI units and are to be regarded as the standard. The values given in parentheses are the historical inch-pound units for information only.

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.

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 7825 : 2018 Standard Practice for Generating a Process Stream Property Value through Application of a Process Stream Analyzer
ASTM D 7235 : 2016 : REDLINE Standard Guide for Establishing a Linear Correlation Relationship Between Analyzer and Primary Test Method Results Using Relevant ASTM Standard Practices
ASTM D 7235 : 2016 Standard Guide for Establishing a Linear Correlation Relationship Between Analyzer and Primary Test Method Results Using Relevant ASTM Standard Practices

ASTM D 7278 : 2016 : REDLINE Standard Guide for Prediction of Analyzer Sample System Lag Times
ASTM D 7235 : 2016 : REDLINE Standard Guide for Establishing a Linear Correlation Relationship Between Analyzer and Primary Test Method Results Using Relevant ASTM Standard Practices
ASTM D 86 : 2017-06 TEST METHOD FOR DISTILLATION OF PETROLEUM PRODUCTS AND LIQUID FUELS AT ATMOSPHERIC PRESSURE
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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