sampling target 

https://doi.org/10.1351/goldbook.08045
Portion of material, at a particular time, that the sample is intended to represent.
Notes:
  1. The sampling target should be defined prior to designing the sampling plan.
  2. The sampling target may be defined by Regulations (for example, lot size).
Source:
PAC, 2021, 93, 997. (Metrological and quality concepts in analytical chemistry (IUPAC Recommendations 2021)) on page 1016 [Terms] [Paper]
Citation: 'sampling target' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.08045 RIS BibTex EndNote
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