Work Item
ASTM WK83516
New Test Method for Determination of Fluorotelomer Alcohols in Air by Thermal Desorption Gas Chromatography/Tandem Mass Spectrometry
1. Scope
1. This standard describes thermal desorption (TD) gas chromatography - tandem mass spectrometry (GC-MS/MS) method for determining fluorotelomer alcohols (FTOHs) concentrations in air.
2. The target FTOHs include 4:2-Fluorotelomer alcohol, 6:2-fluorotelomer alcohol, 8:2-fluorotelomer alcohol, and 10:2-fluorotelomer alcohol.
3. The method is primarily focused on FTOHs measurement applicable to indoor air, including in vehicle and workplace, and associated environments, such as chambers, bags, and bottles. The method may be applicable to ambient air.
Keywords
FTOHs; emissions; PFAS; Sorbent tube
Rationale
Elevated levels of PFAS widely detected in consumer products, building materials, indoor air, and house dust underscore the relevance of the indoor environment to human exposure. Another source of PFAS in the indoor environment is through vapor intrusion from PFAS contaminated subsurface vapor sources. Reliable experimental measurements for emissions of PFAS into the indoor environment are critical for understanding how PFAS move through the environment to impact people and ecosystems. Whereas there have been a few PFAS methods developed for water, soils, sediments, biosolids, biota, and outdoor air, there are currently no similar efforts for vapor-phase PFAS in indoor air. FTOHs are volatile precursors to perfluorinated carboxylic acids and other PFAS. They are widely detected in air. This ASTM standard will describe a TD-GC/MS/MS method to determine FTOHs in air. The standard can be used for measuring emissions of FTOHs to indoor air and associated environments. The method may be applicable to ambient air.
The title and scope are in draft form and are under development within this ASTM Committee.
Work Item Status
Date Initiated: 09-20-2022
Technical Contact: Xiaoyu Liu
Item: 000
Ballot:
Status: