Preparation batch

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A preparation batch, as defined by the United States Environmental Protection Agency via its SEDD Specification Version 5.2, is "a laboratory-defined identifier that is used to link multiple sample aliquots that are prepared together for analysis by one method. 'Together' implies similarity of time, place, and manner of preparation."[1]


  1. U.S. Environmental Protection Agency (March 2019). "Appendix A. Data Element Dictionary (DED)" (PDF). SEDD Specification Version 5.2. Retrieved 22 September 2022.