New Practice for Uncertainty Estimation in the Context of Seized Drug Analysis
1. Scope
1.1. This standard provides minimum requirements for the estimation of uncertainty for qualitative and quantitative measurements in the analysis of seized drugs. In this context, the uncertainty analysis provides an assessment of the range of plausible true values for measurand, or quantity intended to be measured, for quantitative measurements.
1.2. This standard is intended for use by competent forensic science practitioners with the requisite formal education, discipline-specific training (see Practice E2917 and E2326), and demonstrated proficiency to perform forensic casework.
Keywords
Uncertainty budget; Quantitative analysis; Reporting uncertainty
Rationale
In forensic science, it is critical to assess/estimate the uncertainty associated with measurements and disclose the existing limitations regarding these measurements. Forensic laboratories oversee and achieve compliance for measurement uncertainty through training, established operating procedures, and documentation. ASTM E2764, Standard Practice for Uncertainty Assessment in the Context of Seized-Drug, expired in 2020. This new standard provides minimum criteria for the estimation of uncertainty for quantitative measurements and incorporates elements from E2764, as it relates to measurements in drug analysis.
The title and scope are in draft form and are under development within this ASTM Committee.
Work Item Status
Date Initiated: 01-22-2026
Technical Contact: Jason Bory
Item: 000
Ballot:
Status: