Evaluation of Surrogate Liquid for Fluorine-Free Foam Concentrate in Output-Based Aircraft Rescue and Firefighting Vehicle Tests

Hartman, Sherman

doi:10.21949/trst-9q04

i

Evaluation of Surrogate Liquid for Fluorine-Free Foam Concentrate in Output-Based Aircraft Rescue and Firefighting Vehicle Tests

2026-08-01
By Hartman, Sherman

File Language:

English

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Creators:

Hartman, Sherman
Corporate Creators:

Battelle Memorial Institute
Corporate Contributors:

United States. Department of Transportation. Federal Aviation Administration. Office of Airport Safety and Standards
Subject/TRT Terms:
Publication/ Report Number:

DOT/FAA/TC-26/32
DOI:

https://doi.org/10.21949/trst-9q04
Resource Type:

Tech Report
Geographical Coverage:

United States
Edition:

Final Report
Corporate Publisher:

United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center
Abstract:

Under Title 14 Code of Federal Regulations Part 139, Certification of Airports, certificated airports are required to conduct output-based proportioning tests when using fluorine-free foams (F3s) to ensure their aircraft rescue and firefighting (ARFF) vehicle is in an operationally capable state. Output-based testing with F3 can be restricted by environmental regulations and can incur significant clean-up costs. This research identified the currently approved MIL-PRF-32725 F3 concentrates and evaluated whether a surrogate liquid could be used in place of F3 concentrates during ARFF vehicle foam proportioner verification testing. Two MIL-PRF-32725 F3 concentrates and matched surrogate liquids were evaluated. Bench-scale testing with a custom-built, vacuum-based fixture and full-scale output-based testing with an ARFF vehicle were used to evaluate surrogate performance under controlled and operational conditions.
Format:

PDF
Funding:

692M15-25-D-00008
Download URL:

https://rosap.ntl.bts.gov/view/dot/93222/dot_93222_DS1.pdf
File Type:

[PDF - 2.50 MB]
Collection(s):

FAA Fire Safety ; FAA William J. Hughes Technical Center for Advanced Aerospace
Main Document Checksum:

urn:sha-512:c027ad9be64bb75be268403a902ef48178430f9ba5f0eba9b6160555d1cf35121460834c94c01c02691db198523d28292ea3713e085a6015a29e24daa8059b29

File Language:

English

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