ASTM D6621-00(2017)

Standard Practice for Performance Testing of Process Analyzers for Aromatic Hydrocarbon Materials

SIGNIFICANCE AND USE
5.1 Performance testing of on-line analyzers is critical to their proper performance within predictable levels of precision and accuracy. This practice can affect production efficiency and certification of aromatic hydrocarbon materials.
SCOPE
1.1 This practice serves as a practical guide for the performance testing of process stream analyzers specifically for measuring chemical or physical characteristics of liquid aromatic hydrocarbon materials for production or certification of these materials. The practice may be applicable to other hydrocarbon stream analyzers as well.  
1.2 Only external methods (complete substitution of the process stream with a standard) of control sample introduction are included. Internal methods are beyond the scope of this practice.  
1.3 Methods for resetting key operational parameters of analyzers to match predefined limits are provided by vendors and are not included in this practice.  
1.4 Analyzer validation procedures are covered in Practices D3764 and D6122, not in this practice.  
1.5 Procedures for statistically interpreting data from automatic sampling process stream analyzers are outlined.  
1.6 The implementation of this practice requires that the analyzer be installed according to APIRP-550 (1),2 and be in agreement with the analyzer supplier’s recommendations. Also, it assumes that the analyzer is designed to monitor the specific material parameter of interest, and that at the time of initial or periodic validation, the analyzer was operating at the conditions specified by the manufacturer and consistently with the primary test method.  
1.7 The units of measure used in this practice shall be the same as those applicable to the test primary method used for analyzer validation.  
1.8 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.  
1.9 This 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.

General Information

• Status: Historical
• Publication Date: 30-Jun-2017
• ICS: 71.040.50 - Physicochemical methods of analysis
• Technical Committee: D16 - Aromatic, Industrial, Specialty and Related Chemicals
• Drafting Committee: D16.09 - On-Line Analysis

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: D6621 − 00 (Reapproved 2017)
Standard Practice for
Performance Testing of Process Analyzers for Aromatic
1
Hydrocarbon Materials
This standard is issued under the fixed designation D6621; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope priate safety and health practices, and determine the applica-
bility of regulatory limitations prior to use.
1.1 This practice serves as a practical guide for the perfor-
1.9 This international standard was developed in accor-
mance testing of process stream analyzers specifically for
dance with internationally recognized principles on standard-
measuring chemical or physical characteristics of liquid aro-
ization established in the Decision on Principles for the
matic hydrocarbon materials for production or certification of
Development of International Standards, Guides and Recom-
these materials. The practice may be applicable to other
mendations issued by the World Trade Organization Technical
hydrocarbon stream analyzers as well.
Barriers to Trade (TBT) Committee.
1.2 Only external methods (complete substitution of the
process stream with a standard) of control sample introduction
2. Referenced Documents
are included. Internal methods are beyond the scope of this
3
2.1 ASTM Standards:
practice.
D3764PracticeforValidationofthePerformanceofProcess
1.3 Methods for resetting key operational parameters of
Stream Analyzer Systems
analyzers to match predefined limits are provided by vendors D4177Practice for Automatic Sampling of Petroleum and
and are not included in this practice.
Petroleum Products
D6122Practice for Validation of the Performance of Multi-
1.4 Analyzer validation procedures are covered in Practices
variate Online, At-Line, Field and Laboratory Infrared
D3764 and D6122, not in this practice.
Spectrophotometer, and Raman Spectrometer BasedAna-
1.5 Procedures for statistically interpreting data from auto-
lyzer Systems
matic sampling process stream analyzers are outlined.
E456Terminology Relating to Quality and Statistics
1.6 The implementation of this practice requires that the E1655 Practices for Infrared Multivariate Quantitative
2
analyzer be installed according to APIRP-550 (1), and be in Analysis
agreement with the analyzer supplier’s recommendations.
3. Terminology
Also, it assumes that the analyzer is designed to monitor the
specific material parameter of interest, and that at the time of
3.1 Definitions:
initial or periodic validation, the analyzer was operating at the
3.1.1 accuracy, n—closeness of agreement between a test
conditions specified by the manufacturer and consistently with
result and an accepted reference value.
the primary test method.
3.1.2 analyzer output, n—signal that is proportional to the
1.7 The units of measure used in this practice shall be the
quality parameter being measured and suitable for input to
same as those applicable to the test primary method used for readout instrumentation.
analyzer validation.
3.1.2.1 Discussion—It may be pneumatic, electrical, digital,
etc., and expressed as psi, mv, sec., etc.
1.8 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
3.1.3 analyzer result, n—numerical estimate of a physical,
responsibility of the user of this standard to establish appro- chemical, or quality parameter produced by applying the
calibration model to the analyzer output signal.
3.1.4 bias, n—the difference between the expectation of the
1
This practice is under the jurisdiction ofASTM Committee D16 on Aromatic,
results and an accepted reference value.
Industrial, Specialty and Related Chemicals and is the direct responsibility of
Subcommittee D16.09 on On-Line Analysis.
CurrenteditionapprovedJuly1,2017.PublishedJuly2017.Originallyapproved
3
in 2000. Last previous edition approved in 2012 as D6621–00 (2012). DOI: For referenced ASTM standards, visit the ASTM website, www.astm.org, or
10.1520/D6621-00R17. contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
2
Theboldfacenumbersinparenthesesrefertothelistofreferencesattheendof Standards volume information, refer to the standard’s Document Summary page on
this practice. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D6621 − 00 (2017)
3.1.5 control sample, n—material similar to the process firstconfiguredorreconfigured(initialvalidation),andthenon
stream that is stable over long periods of time so that its a periodic basis (periodic
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: D6621 − 00 (Reapproved 2012) D6621 − 00 (Reapproved 2017)
Standard Practice for
Performance Testing of Process Analyzers for Aromatic
1
Hydrocarbon Materials
This standard is issued under the fixed designation D6621; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 This practice serves as a practical guide for the performance testing of process stream analyzers specifically for measuring
chemical or physical characteristics of liquid aromatic hydrocarbon materials for production or certification of these materials. The
practice may be applicable to other hydrocarbon stream analyzers as well.
1.2 Only external methods (complete substitution of the process stream with a standard) of control sample introduction are
included. Internal methods are beyond the scope of this practice.
1.3 Methods for resetting key operational parameters of analyzers to match predefined limits are provided by vendors and are
not included in this practice.
1.4 Analyzer validation procedures are covered in Practices D3764 and D6122, not in this practice.
1.5 Procedures for statistically interpreting data from automatic sampling process stream analyzers are outlined.
2
1.6 The implementation of this practice requires that the analyzer be installed according to APIRP-550 (1), and be in agreement
with the analyzer supplier’s recommendations. Also, it assumes that the analyzer is designed to monitor the specific material
parameter of interest, and that at the time of initial or periodic validation, the analyzer was operating at the conditions specified
by the manufacturer and consistently with the primary test method.
1.7 The units of measure used in this practice shall be the same as those applicable to the test primary method used for analyzer
validation.
1.8 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.
1.9 This 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.
2. Referenced Documents
3
2.1 ASTM Standards:
D3764 Practice for Validation of the Performance of Process Stream Analyzer Systems
D4177 Practice for Automatic Sampling of Petroleum and Petroleum Products
D6122 Practice for Validation of the Performance of Multivariate Online, At-Line, and Laboratory Infrared Spectrophotometer
Based Analyzer Systems
E456 Terminology Relating to Quality and Statistics
E1655 Practices for Infrared Multivariate Quantitative Analysis
3. Terminology
3.1 Definitions:
3.1.1 accuracy, n—closeness of agreement between a test result and an accepted reference value.
1
This practice is under the jurisdiction of ASTM Committee D16 on Aromatic Hydrocarbons Aromatic, Industrial, Specialty and Related Chemicals and is the direct
responsibility of Subcommittee D16.04 on Instrumental Analysis.
Current edition approved June 1, 2012July 1, 2017. Published August 2012July 2017. Originally approved in 2000. Last previous edition approved in 20062012 as
ε1
D6621 – 00 (2006)(2012). . DOI: 10.1520/D6621-00R12.10.1520/D6621-00R17.
2
The boldface numbers in parentheses refer to the list of references at the end of this practice.
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D6621 − 00 (2017)
3.1.2 analyzer output, n—signal that is proportional to the quality parameter being measured and suitable for input to readout
instrumentation.
3.1.2.1 Discussion—
It may be pneumatic, electrical, digital, etc., and expressed as psi, mv, sec., etc.
3.1.3 analyzer result, n—numerical estimate of a physical, chemical, or quali
...