| Description |
1 online resource (80 pages) : illustrations (some color). |
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text txt rdacontent |
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computer c rdamedia |
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online resource cr rdacarrier |
| Series |
NIST technical note ; 2248 |
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NIST technical note ; 2248.
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| Note |
"May 2023." |
| Bibliography |
Includes bibliographical references (page 45-47). |
| Note |
Description based on online resource; title from PDF title page (NIST, viewed onJune 20, 2023). |
| Summary |
Turnout gear is increasingly recognized as a potential source of per- and polyfluoroalkyl substance (PFAS) exposure to firefighters. To determine the type, concentration, and prevalence of PFAS potentially present in new firefighter turnout gear, fifty-three nonvolatile, semivolatile, and volatile PFAS were quantified in twenty textiles used in the construction of firefighter turnout gear. Between one and seventeen PFAS were observed and quantified in each textile, with higher numbers of detections and higher concentrations of PFAS present in moisture barrier and outer shell textiles compared with thermal liner textiles. Three fluorotelomerization-derived PFAS with six perfluorinated carbons, 6:2 fluorotelomer methacrylate, 6:2 fluorotelomer alcohol, and 6:2 fluorotelomer sulfonic acid, were quantified at the highest concentrations of any individual PFAS, up to 1,570 ęg/kg l 140 ęg/kg (mean l standard deviation of triplicate measurements), 613 ęg/kg l 15 ęg/kg and 393 ęg/kg l 98 ęg/kg, respectively. These three PFAS were not detected in outer shells that had not received fluoropolymer treatments which could indicate they were remnant raw materials from side-chain fluorinated polymer manufacturing. Also widely identified were two compounds with four perfluorinated carbons; perfluorobutane sulfonic acid and perfluorobutane sulfonamide. Perfluorocarboxylic acids, especially those with fewer than six perfluorinated carbons, were nearly universally identified, but entirely at concentrations below 40 ęg/kg. In contrast, PFAS with eight or more perfluorinated carbons, such as perfluorooctanoic acid and perfluorooctane sulfonic acid, were present at summed concentrations below 2 ęg/kg in all textiles. The wide variation in summed PFAS concentrations among each textile type suggests that the amount of PFAS present in new turnout gear could vary widely based on the specific textiles used in gear manufacturing. |
| Subject |
Personal protective equipment -- Testing.
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Personal protective equipment -- Standards.
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Textile fabrics -- Testing.
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Textile fabrics -- Standards.
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Perfluorinated chemicals.
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Vapor barriers.
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firefighters.
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vapor barriers.
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Perfluorinated chemicals
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Personal protective equipment -- Standards
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Personal protective equipment -- Testing
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Textile fabrics -- Standards
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Textile fabrics -- Testing
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| Indexed Term |
Thermal line |
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Turnout gear |
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Outer shell |
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Durable water repellent |
| Added Author |
National Institute of Standards and Technology (U.S.), issuing body.
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| Gpo Item No. |
0249-A (online) |
| Sudoc No. |
C 13.46:2248 |
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