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ASTM D7485-23
Standard Test Method for Determination of Nonylphenol, <emph type="bdit">p-tert</emph >-Octylphenol, Nonylphenol Monoethoxylate and Nonylphenol Diethoxylate in Environmental Waters by Liquid Chromatography/Tandem Mass Spectrometry
standard by ASTM International, 04/15/2023