1.1 This guide describes analytical methods for determining Per- and Polyfluoroalkyl Substances (PFAS) concentrations in air.
1.2 The guide is primarily focused on PFAS measurement technologies applicable to indoor (including in vehicle and workplace) air and associated environments (that is, chambers or bags, or both). The described technologies may be applicable to other environments (ambient outdoor).
1.3 The guide described commercially available technologies and methods that can be used to measure indoor air PFAS concentrations.
1.4 The guide describes PFAS measurement methods that are applicable to the gaseous phase and/or particulates in indoor air.
1.5 This guide describes the principles behind each method and their advantages and limitations.
1.6 This guide does not attempt to differentiate between the effectiveness of the methods nor determine equivalence of the methods.
1.7 This guide does not address CF4, C2F6 or other light PFAS breakdown products as they require different analytical methods than are presented here.
1.8 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
PFAS; FTOH; FTAC; FASA; FASE; PFCA; PFSA; PAP
Recent measurements of the indoor environment has demonstrated the presence of widespread PFAS substances. Sampling PFAS in indoor air has a wide range of challenges and techniques that can be chemical specific.
This guide will provide practitioners, regulators and testing companies a roadmap to the appropriate collection and analysis techniques for specific PFAS found in indoor air.
The title and scope are in draft form and are under development within this ASTM Committee.
Developed by Subcommittee: D22.05
Staff Manager: Ashley Wiand
Date Initiated: 05-03-2022
Technical Contact: Dustin Poppendieck