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ASTM E2653-08

(Practice)

Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Fire Test Method with Fewer Than Six Participating Laboratories

Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Fire Test Method with Fewer Than Six Participating Laboratories

SIGNIFICANCE AND USE
ASTM regulations require precision statements in all test methods in terms of repeatability and reproducibility. This practice is used when the number of participating laboratories or materials being tested, or both, in a precision study is less than the number specified by Practice E 691. When possible, it is strongly recommended that a full E 691 standard protocol be followed to determine test method precision. Precision results produced by the procedures presented in this standard will not have the same degree of accuracy as results generated by a full E 691 protocol. This procedure will allow for the development of useful precision results when a full compliment of laboratories is not available for interlaboratory testing.
This practice is based on recommendations for interlaboratory studies and data analysis presented in Practice E 691. This practice does not concern itself with the development of test methods but with a standard means for gathering information and treating the data needed for developing a precision statement for a fire test method when a complete E 691 interlaboratory study and data analysis are not possible.
SCOPE
1.1 This practice describes the techniques for planning, conducting, analyzing, and treating results of an interlaboratory study (ILS) for estimating the precision of a fire test method when fewer than six laboratories are available to meet the recommended minimum requirements of Practice E 691. Data obtained from an interlaboratory study are useful in identifying variables that require modifications for improving test method performance and precision.
1.2 Precision estimates developed using this practice will not be statistically equivalent to precision estimates produced by Practice E 691 because a small number of laboratories are used. The smaller number of participating laboratories will seriously reduce the value of precision estimates reported by this practice. However, under circumstances where only a limited number of laboratories are available to participate in an ILS, precision estimates developed by this practice will provide the user with useful information concerning precision for a test method.
1.3 A minimum of three qualified laboratories is required for conducting an ILS using this practice. If six or more laboratories are available to participate in an ILS for a given fire test method, Practice E 691 shall be used for conducting the ILS.
1.4 Since the primary purpose of this practice is the development of the information needed for a precision statement, the experimental design in this practice will not be optimum for evaluating all materials, test methods, or as a tool for individual laboratory analysis.
1.5 Because of the reduced number of participating laboratories a Laboratory Monitor shall be used in the ILS. See Standard Guide E 2335.
1.6 Field of Application—This practice is concerned with test methods that yield numerical values or a series of numerical values for different fire-test response properties. The numerical values mentioned above are typically the result of calculations from a set of measurements.
1.7 This practice includes design information suitable for use with the development of interlaboratory studies for test methods that have categorization (go-no-go) allocation test results. However, it does not provide a recommended statistical practice for evaluating the go-no-go data.
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.

General Information

Status
Historical
Publication Date
30-Sep-2008
ICS
13.220.01 - Protection against fire in general
Technical Committee
E05 - Fire Standards
Drafting Committee
E05.15 - Furnishings and Contents
Current Stage
Ref Project

Relations

Replaced By
ASTM E2653-09 - Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Fire Test Method with Fewer Than Six Participating Laboratories
Effective Date
01-Apr-2009
Referred By
ASTM B1019-21 - Standard Test Method for Determination of Surface Oxides on Copper Rod<brk/>(for Electrical Purposes)
Effective Date
01-Oct-2008
Referred By
ASTM E970-17e1 - Standard Test Method for Critical Radiant Flux of Exposed Attic Floor Insulation Using a Radiant Heat Energy Source
Effective Date
01-Oct-2008
Referred By
ASTM E2335-22 - Standard Guide for Laboratory Monitors
Effective Date
01-Oct-2008
Referred By
ASTM D1929-23 - Standard Test Method for Determining Ignition Temperature of Plastics
Effective Date
01-Oct-2008
Referred By
ASTM E176-21ae1 - Standard Terminology of Fire Standards
Effective Date
01-Oct-2008
Referred By
ASTM D4968-19a - Standard Practice for Annual Review of Test Methods and Specifications for Plastics
Effective Date
01-Oct-2008

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ASTM E2653-08 - Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Fire Test Method with Fewer Than Six Participating LaboratoriesASTM E2653-08 - Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Fire Test Method with Fewer Than Six Participating Laboratories
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ASTM E2653-08 - Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Fire Test Method with Fewer Than Six Participating Laboratories
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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:E2653–08
Standard Practice for
Conducting an Interlaboratory Study to Determine the
Precision of a Fire Test Method with Fewer Than Six
1
Participating Laboratories
This standard is issued under the fixed designation E 2653; 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 1.7 This practice includes design information suitable for
use with the development of interlaboratory studies for test
1.1 This practice describes the techniques for planning,
methods that have categorization (go-no-go) allocation test
conducting,analyzing,andtreatingresultsofaninterlaboratory
results.However,itdoesnotprovidearecommendedstatistical
study (ILS) for estimating the precision of a fire test method
practice for evaluating the go-no-go data.
when fewer than six laboratories are available to meet the
1.8 This standard does not purport to address all of the
recommended minimum requirements of Practice E 691. Data
safety concerns, if any, associated with its use. It is the
obtainedfromaninterlaboratorystudyareusefulinidentifying
responsibility of the user of this standard to establish appro-
variables that require modifications for improving test method
priate safety and health practices and determine the applica-
performance and precision.
bility of regulatory limitations prior to use.
1.2 Precision estimates developed using this practice will
not be statistically equivalent to precision estimates produced
2. Referenced Documents
by Practice E 691 because a small number of laboratories are
2
2.1 ASTM Standards:
used. The smaller number of participating laboratories will
E 176 Terminology of Fire Standards
seriously reduce the value of precision estimates reported by
E 177 Practice for Use of the Terms Precision and Bias in
this practice. However, under circumstances where only a
ASTM Test Methods
limited number of laboratories are available to participate in an
E 178 Practice for Dealing With Outlying Observations
ILS, precision estimates developed by this practice will pro-
E 456 Terminology Relating to Quality and Statistics
vide the user with useful information concerning precision for
E 691 Practice for Conducting an Interlaboratory Study to
a test method.
Determine the Precision of a Test Method
1.3 A minimum of three qualified laboratories is required
E 1169 Practice for Conducting Ruggedness Tests
for conducting an ILS using this practice. If six or more
E 2335 Guide for Laboratory Monitors
laboratories are available to participate in an ILS for a given
fire test method, Practice E 691 shall be used for conducting
3. Terminology
the ILS.
3.1 Definitions—For formal definitions of statistical terms,
1.4 Since the primary purpose of this practice is the devel-
seeTerminologyE 456.Forformaldefinitionsoffireterms,see
opmentoftheinformationneededforaprecisionstatement,the
Terminology E 176.
experimental design in this practice will not be optimum for
3.2 Definitions of Terms Specific to This Standard:
evaluatingallmaterials,testmethods,orasatoolforindividual
3.2.1 test method and protocol—in this practice, the term
laboratory analysis.
“test method” is used both for the actual measurement process
1.5 Because of the reduced number of participating labora-
and for the written description of the process, while the term
tories a Laboratory Monitor shall be used in the ILS. See
“protocol” is used for the directions given to the laboratories
Standard Guide E 2335.
for conducting the ILS.
1.6 Field of Application—This practice is concerned with
3.2.2 repeatability and reproducibility—these terms deal
test methods that yield numerical values or a series of
with the variability of test results obtained under specified
numerical values for different fire-test response properties.The
laboratory conditions. Repeatability concerns the variability
numerical values mentioned above are typically the result of
between independent test results obtained within a single
calculations from a set of measurements.
1 2
This practice is under the jurisdiction of ASTM Committee E05 on Fire For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Standards and is the direct responsibility of Subcommittee E05.15 on Furnishings contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
and Contents. Standards volume information, refer to the standard’s Document Summary page on
Current edition approved Oct. 1, 2008. Published November 2008. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

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SIGNIFICANCE AND USE
5.1 ASTM regulations require precision statements in all test methods in terms of repeatability and reproducibility. This practice is used when the number of participating laboratories or materials being tested, or both, in a precision study is less than the number specified by Practice E691. When possible, it is strongly recommended that a full Practice E691 standard protocol be followed to determine test method precision. Precision results produced by the procedures presented in this standard will not have the same degree of accuracy as results generated by a full Practice E691 protocol. This procedure will allow for the development of useful precision results when a full complement of laboratories is not available for interlaboratory testing.  
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ASTM E535-23(Practice)
Standard Practice for Preparation of Fire-Test-Response Standards

SIGNIFICANCE AND USE
4.1 This standard is to be used by those concerned with the development of fire-test-response standards.  
4.2 The resultant fire-test-response standards are intended to be useful in one or more of the following areas, among others: product development, quality control, product comparisons, screening, information to be used as part of a fire hazard or a fire risk assessment, and regulatory purposes.  
4.3 This practice is intended to be useful to users and developers of fire-test-response standards (Section 5) because it provides much of the general rationale for the development and use of such standards.  
4.4 This practice is not intended to provide guidance for the preparation of fire hazard assessment standards or fire risk assessment standards.  
4.5 This practice is not intended to provide guidance for the preparation of standards not related to fire-test responses of materials, products or assemblies.
SCOPE
1.1 This practice is a supplement to Form and Style for ASTM Standards,2 which shall be consulted in writing all ASTM standards.  
1.2 This practice contains, directly or by reference, all of the information required to comply with the policy on fire standards and the additional guidelines recommended by Committee E05.  
1.3 This practice, intended to assist ASTM Committees, establishes guidelines and criteria for the preparation of fire-test-response standards (that is, standards for response to heat or flame under prescribed conditions).  
1.4 This fire standard cannot be used to provide quantitative measures.  
1.5 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.  
1.6 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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ASTM
ASTM E1355-23(Guide)
Standard Guide for Evaluating the Predictive Capability of Deterministic Fire Models

SIGNIFICANCE AND USE
5.1 The process of model evaluation is critical to establishing both the acceptable uses and limitations of fire models. It is not possible to evaluate a model in total; instead, this guide is intended to provide a methodology for evaluating the predictive capabilities for a specific use. Validation for one application or scenario does not imply validation for different scenarios. Several alternatives are provided for performing the evaluation process including: comparison of predictions against standard fire tests, full-scale fire experiments, field experience, published literature, or previously evaluated models.  
5.2 The use of fire models currently extends beyond the fire research laboratory and into the engineering, fire service and legal communities. Sufficient evaluation of fire models is necessary to ensure that those using the models can judge the adequacy of the scientific and technical basis for the models, select models appropriate for a desired use, and understand the level of confidence which can be placed on the results predicted by the models. Adequate evaluation will help prevent the unintentional misuse of fire models.  
5.3 This guide is intended to be used in conjunction with other guides under development by Committee E05. It is intended for use by:  
5.3.1 Model Developers—To document the usefulness of a particular calculation method perhaps for specific applications. Part of model development includes identification of precision and limits of applicability, and independent testing.  
5.3.2 Model Users—To assure themselves that they are using an appropriate model for an application and that it provides adequate accuracy.  
5.3.3 Developers of Model Performance Codes—To be sure that they are incorporating valid calculation procedures into codes.  
5.3.4 Approving Officials—To ensure that the results of calculations using mathematical models stating conformance to this guide, cited in a submission, show clearly that the model is used withi...
SCOPE
1.1 This guide provides a methodology for evaluating the predictive capabilities of a fire model for a specific use. The intent is to cover the whole range of deterministic numerical models which might be used in evaluating the effects of fires in and on structures.  
1.2 The methodology is presented in terms of four areas of evaluation:  
1.2.1 Defining the model and scenarios for which the evaluation is to be conducted,  
1.2.2 Verifying the appropriateness of the theoretical basis and assumptions used in the model,  
1.2.3 Verifying the mathematical and numerical robustness of the model, and  
1.2.4 Quantifying the uncertainty and accuracy of the model results in predicting of the course of events in similar fire scenarios.  
1.3 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.  
1.4 This fire standard cannot be used to provide quantitative measures.  
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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