ASTM E2549-14
(Practice)Standard Practice for Validation of Seized-Drug Analytical Methods (Withdrawn 2023)
Standard Practice for Validation of Seized-Drug Analytical Methods (Withdrawn 2023)
SIGNIFICANCE AND USE
3.1 Validation is the confirmation by examination and the provision of objective evidence that the particular requirements for a specific intended use are fulfilled. There are numerous documents that address the topic of validation but there are few validation protocols for methods specific to seized drug analysis. This practice makes recommendations for the validation of both qualitative and quantitative methods used for the analysis of seized drugs.
SCOPE
1.1 This practice addresses the validation of qualitative and quantitative seized-drug analytical methods. It discusses the validation of analytical methods in terms of their part in analytical schemes and in terms of performance characteristics including brief mention of measurement uncertainty and quality control parameters.
1.2 This practice does not replace knowledge, skill, ability, experience, education or training and should be used in conjunction with professional judgment.
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 and health practices and determine the applicability of regulatory limitations prior to use.
WITHDRAWN RATIONALE
This practice addressed the validation of qualitative and quantitative seized-drug analytical methods. It discussed the validation of analytical methods in terms of their part in analytical schemes and in terms of performance characteristics including brief mention of measurement uncertainty and quality control parameters.
Formerly under the jurisdiction of Committee E30 on Forensic Sciences, this practice was withdrawn in July 2023 in accordance with section 10.6.3 of the Regulations Governing ASTM Technical Committees, which requires that standards shall be updated by the end of the eighth year since the last approval date.
General Information
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: E2549 − 14 An American National Standard
Standard Practice for
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Validation of Seized-Drug Analytical Methods
This standard is issued under the fixed designation E2549; 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 4. Analytical Scheme
1.1 This practice addresses the validation of qualitative and 4.1 An analytical scheme shall be comprised of validated
quantitative seized-drug analytical methods. It discusses the methods that are appropriate for the analyte.
validation of analytical methods in terms of their part in
4.2 The combinations of methods chosen for a particular
analytical schemes and in terms of performance characteristics
analytical scheme shall identify the specific drug of interest,
including brief mention of measurement uncertainty and qual-
preclude a false positive and minimize false negatives.
ity control parameters.
4.3 For quantification the method should reliably determine
1.2 This practice does not replace knowledge, skill, ability,
the amount of analyte present.
experience, education or training and should be used in
4.4 If validated methods are used from published literature
conjunction with professional judgment.
or another laboratory’s protocols, then the methods shall be
1.3 This standard does not purport to address all of the
verified within each laboratory
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro- 4.5 If non-routine validated methods are used, then the
priate safety and health practices and determine the applica- method shall be verified prior to use.
bility of regulatory limitations prior to use.
4.6 Verification should, at a minimum, demonstrate that a
representative set of reference materials has been carried
2. Referenced Documents
through the process and yielded the expected results.
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2.1 ASTM Standards:
E2327 Practice for Quality Assurance of Laboratories Per- 5. Individual Laboratory Responsibility
forming Seized-Drug Analysis
5.1 Each laboratory should determine whether their current
E2764 Practice for Uncertainty Assessment in the Context of
standard operating procedures have been validated, verified, or
Seized-Drug Analysis
require further validation/verification.
3. Significance and Use
6. Operational Environment
3.1 Validation is the confirmation by examination and the
6.1 All methods shall be validated or verified to demonstrate
provision of objective evidence that the particular requirements
that they will perform in the normal operational environment
for a specific intended use are fulfilled. There are numerous
when used by individuals expected to utilize the methods on
documents that address the topic of validation but there are few
casework.
validation protocols for methods specific to seized drug analy-
sis. This practice makes recommendations for the validation of
7. Documentation
both qualitative and quantitative methods used for the analysis
7.1 The entire validation/verification process shall be docu-
of seized drugs.
mented and the documentation shall be retained for a period in
accordance with laboratory policy. Documentation shall
include, but is not limited to the following:
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This practice is under the jurisdiction of ASTM Committee E30 on Forensic
7.1.1 Personnel involved;
Sciences and is the direct responsibility of Subcommittee E30.11 on Interdisciplin-
ary Forensic Science Standards.
7.1.2 Dates;
Current edition approved March 1, 2014. Published March 2014. Originally
7.1.3 Observations from the process;
approved in 2009. Last previous edition approved in 2009 as E2549 – 09. DOI:
7.1.4 Analytical data;
10.1520/E2549-14.
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or
7.1.5 A statement of conclusions or recommendations, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
both; and
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. 7.1.6 Authorization approval signature.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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E2549 − 14
8. Recommendation 9.4.2 Matrix Effects—Assess the impact of any interfering
components and demonstrate that the method works in the
8.1 To meet the requirements of Sections 4 through 7, it is
presence of substances that are commonly encountered in
recommended that laboratories follow the applicable provi-
seized drug samples (for example, cutting agents, impurities,
sions of Section 9 [Gene
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