TY - RPRT TI - Characterization of Reference Materials 8690 to 8693: Per- and Polyfluoroalkyl Substances (PFAS) in Four Formulations of Aqueous Film-Forming Foams (AFFFs) AU - Reiner, Jessica L AU - Place, Benjamin AU - Heckert, N. Alan AU - Peter, Katherine AU - Rodowa, Alix PY - 2023 PB - National Institute of Standards and Technology CY - Gaithersburg, MD SN - NIST SP 260-234 DO - 10.6028/NIST.SP.260-234 ER -