"ASTM D7574-23 Standard Test Method for the Determination of Bisphenol A in Environment Water by Liquid Chromatography/Tandem Mass Spectrometry" specifies a standard test method for the quantitative determination of bisphenol A (BPA) in environment water using liquid chromatograph-tandem mass spectrometry (LC-MS/MS) technology. Bisphenol A is a common environment contaminant, widely found in plastics and Miscellaneous synthetic materials, and has certain biological toxicity. The standard details sample preparation, instrument setup, operation procedures, and Data analysis methods to ensure the accuracy and Reliability of the measurement results. Sensitivity and selectivity, liquid chromatograph-tandem Mass spectrometry can effectively detect low concentrations of BPA, suitable for environment monitoring and water quality assessment. This standard provides a scientific and reliable detection tool for environmental protection agencies, laboratories and related research.