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ASTM D6621-21

(Practice)

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

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, health, and environmental 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
Published
Publication Date
31-Oct-2021
ICS
71.040.50 - Physicochemical methods of analysis
Technical Committee
D16 - Aromatic, Industrial, Specialty and Related Chemicals
Drafting Committee
D16.09 - On-Line Analysis
Current Stage
Ref Project

Relations

Refers
ASTM D3852-20 - Standard Practice for Sampling and Handling Phenol, Cresols, and Cresylic Acid
Effective Date
01-Jun-2020

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Standards Content (Sample)

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.
Designation: D6621 − 21
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, health, and environmental practices, and deter-
mine the applicability 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.
D3437Practice for Sampling and Handling Liquid Cyclic
1.3 Methods for resetting key operational parameters of
Products
analyzers to match predefined limits are provided by vendors
D3438Practice for Sampling and Handling Naphthalene,
and are not included in this practice.
Maleic Anhydride, and Phthalic Anhydride
1.4 Analyzer validation procedures are covered in Practices D3764PracticeforValidationofthePerformanceofProcess
D3764 and D6122, not in this practice.
Stream Analyzer Systems
D3852Practice for Sampling and Handling Phenol, Cresols,
1.5 Procedures for statistically interpreting data from auto-
and Cresylic Acid
matic sampling process stream analyzers are outlined.
D6122Practice for Validation of the Performance of Multi-
1.6 The implementation of this practice requires that the
variate Online, At-Line, Field and Laboratory Infrared
2
analyzer be installed according to APIRP-550 (1), and be in
Spectrophotometer, and Raman Spectrometer BasedAna-
agreement with the analyzer supplier’s recommendations.
lyzer Systems
Also, it assumes that the analyzer is designed to monitor the
E456Terminology Relating to Quality and Statistics
specific material parameter of interest, and that at the time of
E1655 Practices for Infrared Multivariate Quantitative
initial or periodic validation, the analyzer was operating at the
Analysis
conditions specified by the manufacturer and consistently with
the primary test method.
3. Terminology
1.7 The units of measure used in this practice shall be the
3.1 Definitions:
same as those applicable to the test primary method used for
3.1.1 accuracy, n—closeness of agreement between a test
analyzer validation.
result and an accepted reference value.
1.8 This standard does not purport to address all of the
3.1.2 analyzer output, n—signal that is proportional to the
safety concerns, if any, associated with its use. It is the
quality parameter being measured and suitable for input to
responsibility of the user of this standard to establish appro-
readout instrumentation.
3.1.2.1 Discussion—It may be pneumatic, electrical, digital,
etc., and expressed as psi, mv, sec., etc.
1
This practice is under the jurisdiction ofASTM Committee D16 on Aromatic,
Industrial, Specialty and Related Chemicals and is the direct responsibility of
Subcommittee D16.09 on On-Line Analysis.
Current edition approved Nov. 1, 2021. Published December 2021. Originally
3
approved in 2000. Last previous edition approved in 2017 as D6621–00 (2017). For referenced ASTM standards, visit the ASTM website, www.astm.org, or
DOI: 10.1520/D6621-21. contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
2
Theboldfacenumbersinparenthesesrefertothelistofreferencesattheendof Standards volume information, refer to the standard’s Document Summary page on
this practice. the ASTM website.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D6621 − 21
3.1.3 analyzer result, n—numerical estimate of a physical, 3.1.15 validation o
...

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 2017) D6621 − 21
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 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 safety, health, and healthenvironmental 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.
1
This practice is under the jurisdiction of ASTM Committee D16 on Aromatic, Industrial, Specialty and Related Chemicals and is the direct responsibility of Subcommittee
D16.09 on On-Line Analysis.
Current edition approved July 1, 2017Nov. 1, 2021. Published July 2017December 2021. Originally approved in 2000. Last previous edition approved in 20122017 as
D6621 – 00 (2012).(2017). DOI: 10.1520/D6621-00R17.10.1520/D6621-21.
2
The boldface numbers in parentheses refer to the list of references at the end of this practice.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D6621 − 21
2. Referenced Documents
3
2.1 ASTM Standards:
D3437 Practice for Sampling and Handling Liquid Cyclic Products
D3438 Practice for Sampling and Handling Naphthalene, Maleic Anhydride, and Phthalic Anhydride
D3764 Practice for Validation of the Performance of Process Stream Analyzer Systems
D4177D3852 Practice for Automatic Sampling of Petroleum and Petroleum Productsand Handling Phenol, Cresols, and Cresylic
Acid
D6122 Practice for Validation of the Performance of Multivariate Online, At-Line, Field and Laboratory Infrared
Spectrophotometer, and Raman Spectrometer 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.
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 es
...

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FIG. 1 Activity/Industry that may be Sources of PFAS Use and Release
Source: AEI Consultants  
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4.3.1 The actions described in this guide are intended to provide a multi-step risk management framework to confirm, with reasonable certainty, that PFAS may have been used at a federally-owned, publicly-owned, or privately-owned property. This standard provides guidance on how to focus limited resources on using a multi-step process, illustrated in Fig. 2, to identify property potentially impacted by on-site or off-site uses and releases of PFAS. Section 4.5 describes the use and occurrence of PFAS. Section 4.6 describes activities at government and federal installations where PFAS use is expected. Section 4.7 broadly outlines the industry sectors where the use of PFAS has been documented (Glüge, 2020 (2), Gaines, 2022 (3)).
FIG. 2 Initial Site Screening and Characterization Flow Diagram  
4.4 PFAs History and Use:  
4.4.1 In the 1940s, industrial processes to co...
SCOPE
1.1 Per- and polyfluoroalkyl substances (PFAS) are a group of over 7,000 manmade compounds consisting of polymeric chains of carbon bonded to fluorine atoms, usually with a polar functional group at the head. This guide recognizes that PFAS can be categorized as polymeric or nonpolymeric, collectively amounting to more than 4,700 Chemical Abstracts Service (CAS)-registered substances. Environmental concerns pertaining to PFAS are centered primarily on the perfluoroalkyl acids (PFAA), a subclass of per-and polyfluoroalkyl substances, which display extreme persistence and chain-length dependent bioaccumulation and adverse effects in biota.  
1.2 The regulatory framework for PFAS continues to evolve, both domestically and internationally. The United States Environmental Protection Agency (EPA) is proceeding with a wide-ranging set of PFAS regulatory actions (EPA, 2021). While the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) does not currently recognize PFAS as hazardous substances, the statute does require actions to protect public health and the environment from contaminants and pollutants released to the environment. Other federal regulatory programs, such as the Safe Drinking Water Act are being used to address drinking water supplies adversely impacted by releases of PFAS. The Clean Water Act’s National Pollutant Discharge Elimination System (NPDES) permitting program is tool that both federal and state regulators are using to regulate the inflows of PFAS-impacted wastewaters at both publicly-owned treatment works (POTW) and federally-owned wastewater treatment plants and the concentration of PFAS in permitted effluent. EPA continues to add additional per-and polyfluoroalkyl substances to the list of substances reportable under the federal Toxic Release Inventory (TRI) reporting program. International efforts to address per-and polyfluoroalkyl substances include Australia’s PFAS Nation...

  • Guide
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  • Guide
    23 pages
    English language
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ASTM
ASTM G136-03(2023)e1(Practice)
Standard Practice for Determination of Soluble Residual Contaminants in Materials by Ultrasonic Extraction

SIGNIFICANCE AND USE
5.1 This practice is suitable for the determination of extractable substances that may be found in materials used in systems or components requiring a high level of cleanliness, such as oxygen systems. Soft goods, such as seals and valve seats, may be tested as received. Gloves and wipes, or samples thereof, to be used in cleaning operations may be evaluated prior to use to ensure that the proposed extracting agent does not extract or deposit chemicals, or both, on the surface to be cleaned.  
5.2 Wipes or other cleaning equipment may be tested after use to determine the amount of contaminant removed from a surface.
Note 1: The amount of material extracted may be dependent upon the frequency and power density of the ultrasonic unit.  
5.3 The extraction efficiency has been shown to vary with the frequency and power density of the ultrasonic unit. The unit, therefore, must be carefully evaluated to optimize the extraction conditions.
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1.1 This practice may be used to extract nonvolatile and semivolatile residues from materials such as new and used gloves, new and used wipes, component soft goods, and so forth. When used with proposed cleaning materials (wipes, gloves, and so forth), this practice may be used to determine the potential of the proposed solvent or other fluids to extract contaminants (plasticizers, residual detergents, brighteners, and so forth) and deposit them on the surface being cleaned.  
1.2 This practice is not suitable for the evaluation of particulate contamination.  
1.3 The values stated in SI units are to be regarded standard. No other units of measurement are included in this standard.  
1.4 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.5 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.

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