The ASTM D3973-85(2024) standard, published by the American Society for Testing and Materials (ASTM) on April 1, 2024, outlines a comprehensive methodology for determining the concentration of low molecular weight halogenated hydrocarbons in water. This method is specifically designed to address environmental concerns related to these compounds, which are often used in various industrial processes and can pose significant health risks if they contaminate drinking or surface waters.
The standard provides detailed instructions for sample preparation, including the extraction of halogenated hydrocarbons from water samples using appropriate solvents. It also includes guidelines for instrumental analysis utilizing gas chromatography (GC) coupled with electron capture detection (ECD). This analytical technique is particularly sensitive to halogen-containing compounds, making it ideal for detecting low concentrations in aqueous matrices.
To ensure the reliability and reproducibility of results, the standard specifies quality control procedures such as calibration checks, blank sample analyses, and method validation studies. It also recommends methods for interpreting analytical data and reporting concentrations accurately within specified limits of detection and quantitation.
*** Please note: This description may not be accurate, please refer to the official documentation.
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