https://www.epa.gov/hw-sw846/sw-846-test-method-5030b-purge-and-trap-aqueous-samples
SW-846 Test Method 5030B: Purge-and-Trap for Aqueous Samples | US EPA
Oct 23, 2025 - describes a purge-and-trap procedure for the analysis of volatile organic compounds (VOCs) in aqueous samples and water miscible liquid samples