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ASTM E 2677 : 2014

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Standard Test Method for Determining Limits of Detection in Explosive Trace Detectors
Available format(s)

Hardcopy , PDF

Superseded date

05-13-2020

Language(s)

English

Published date

02-01-2014

CONTAINED IN VOL. 15.08, 2014 Applies a series of replicated measurements of an analyte at dosage levels giving instrumental responses that bracket the critical value, a truncated normal distribution model, and confidence bounds to establish a standard for determining practical and statistically robust limits of detection to analytes sampled on swabs by explosive trace detectors (ETDs).

1.1In harmony with the Joint Committee for Guides in Metrology (JCGM) and detection concepts of the International Union of Pure and Applied Chemistry (IUPAC) (1, 2, 3)2, this test method uses a series of replicated measurements of an analyte at dosage levels giving instrumental responses that bracket the critical value, a truncated normal distribution model, and confidence bounds to establish a standard for determining practical and statistically robust limits of detection to analytes sampled on swabs by explosive trace detectors (ETDs).

1.2Here, the limit of detection (LOD90) is defined to be the lowest mass of a particular compound deposited on a sampling swab for which there is 90 % confidence that a single measurement in a particular ETD will have a true detection probability of at least 90 % and a true nondetection probability of at least 90 % when measuring a process blank sample.

1.3This particular test method was chosen on the basis of reliability, practicability, and comprehensiveness across tested ETDs, analytes, and deployment conditions. The calculations involved in this test method are published elsewhere (4), and may be performed consistently with an interactive web-based tool available on the National Institute of Standards and Technology (NIST) site: http://pubapps.nist.gov/loda.

1.4Intended Users—ETD developers, ETD vendors, ETD buyers, ETD testers, ETD users (first responders, security screeners, and the military), and agencies responsible for public safety and enabling effective deterrents to terrorism.

1.5While this test method may be applied to any detection technology that produces numerical output, the procedures have been designed for ion mobility spectrometry (IMS) based ETD systems and tested with low vapor pressure explosive compounds. Compounds are deposited as liquid solutions on swabs and dried before use. As some swabs are absorbent, this deposition procedure may not be optimal for those ETD technologies that rely on high coverage of analyte on the surface of the swab. Background interferences introduced to the test samples were representative of a variety of conditions expected during deployment, but these conditions were not intended as comprehensive in representing all possible scenarios. The user should be aware of the possibility that untested scenarios may lead to failure in the determination of a reliable LOD90 value.

1.6Units—The values stated in SI units are to be regarded as the standard. No other units of measurement are included in this standard.

1.7This 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. Some specific hazards statements are given in Section 8 on Hazards.

Committee
E 54
DocumentType
Test Method
Pages
8
PublisherName
American Society for Testing and Materials
Status
Superseded
SupersededBy

ASTM E 2771 : 2011 : EDT 1 Standard Terminology for Homeland Security Applications
ASTM E 3131 : 2017 Standard Specification for Nucleic Acid-Based Systems for Bacterial Pathogen Screening of Suspicious Visible Powders
ASTM E 2520 : 2015 Standard Practice for Measuring and Scoring Performance of Trace Explosive Chemical Detectors
ASTM E 2520 : 2015 : REDLINE Standard Practice for Measuring and Scoring Performance of Trace Explosive Chemical Detectors
ASTM E 2771 : 2011 : R2019 Standard Terminology for Homeland Security Applications
ASTM E 2771 : 2011 : EDT 3 Standard Terminology for Homeland Security Applications
ASTM E 2771 : 2011 : EDT 2 Standard Terminology for Homeland Security Applications

ASTM E 2520 : 2015 : REDLINE Standard Practice for Measuring and Scoring Performance of Trace Explosive Chemical Detectors
ASTM E 1323 : 2015 Standard Guide for Evaluating Laboratory Measurement Practices and the Statistical Analysis of the Resulting Data
ASTM D 6091 : 2007 Standard Practice for 99 %/95 % Interlaboratory Detection Estimate (IDE) for Analytical Methods with Negligible Calibration Error
ASTM E 1154 : 1989 : R2003 Standard Specification for Piston or Plunger Operated Volumetric Apparatus
ASTM E 177 : 2014 : REDLINE Standard Practice for Use of the Terms Precision and Bias in ASTM Test Methods
ASTM E 2655 : 2008 Standard Guide for Reporting Uncertainty of Test Results and Use of the Term Measurement Uncertainty in ASTM Test Methods
ASTM E 2520 : 2007 Standard Practice for Verifying Minimum Acceptable Performance of Trace Explosive Detectors
ASTM E 1323 : 1989 : R1994 : EDT 1 Standard Guide for Evaluating Laboratory Measurement Practices and the Statistical Analysis of the Resulting Data
ASTM E 1323 : 1989 : R2002 Standard Guide for Evaluating Laboratory Measurement Practices and the Statistical Analysis of the Resulting Data
ASTM E 1154 : 2014 Standard Specification for Piston or Plunger Operated Volumetric Apparatus
ASTM E 2655 : 2014 : REDLINE Standard Guide for Reporting Uncertainty of Test Results and Use of the Term Measurement Uncertainty in ASTM Test Methods
ASTM E 1154 : 1989 : R1997 Standard Specification for Piston or Plunger Operated Volumetric Apparatus
ASTM E 200 : 2016 : REDLINE Standard Practice for Preparation, Standardization, and Storage of Standard and Reagent Solutions for Chemical Analysis
ASTM E 1323 : 2009 Standard Guide for Evaluating Laboratory Measurement Practices and the Statistical Analysis of the Resulting Data
ASTM E 2655 : 2014 Standard Guide for Reporting Uncertainty of Test Results and Use of the Term Measurement Uncertainty in ASTM Test Methods
ASTM D 6091 : 2003 Standard Practice for 99 %/95 % Interlaboratory Detection Estimate (IDE) for Analytical Methods with Negligible Calibration Error
ASTM D 6091 : 2007 : R2014 Standard Practice for 99 %/95 % Interlaboratory Detection Estimate (IDE) for Analytical Methods with Negligible Calibration Error (Withdrawn 2023)
ASTM E 1323 : 2015 : REDLINE Standard Guide for Evaluating Laboratory Measurement Practices and the Statistical Analysis of the Resulting Data
ASTM E 2520 : 2015 Standard Practice for Measuring and Scoring Performance of Trace Explosive Chemical Detectors
ASTM E 1154 : 2014 : REDLINE Standard Specification for Piston or Plunger Operated Volumetric Apparatus
ASTM D 6091 : 1997 Standard Practice for 99 %/95 % Interlaboratory Detection Estimate (IDE) for Analytical Methods with Negligible Calibration Error

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