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ASTM
D4840-99(2018)e1
Standard Guide for Sample Chain-of-Custody Procedures
2018
9
ASTM Vol.11.01 (2023)
This guide contains a comprehensive discussion of potential requirements, in the analysis of water, for a sample chain-of-custody program and describes the procedures involved in sample chain-of-custody. The purpose of these procedures is to provide accountability for and documentation of sample integrity from the time samples are collected until sample disposal...