NASA NTRS · 19940000376
Improved Helmet-Padding Material
Abstract
Polyimide foamed into lightweight padding material for use in helmets. Exhibits increased resistance to ignition, combustion, and impact, and it outgasses less. Foam satisfies offgassing and toxicity requirements of NASA/JSC criteria (NHB80601B). Helmets containing this improved padding material used by firefighters, police, offshore drilling technicians, construction workers, miners, and race-car drivers.
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Dawn, Frederic S., Weiss, Fred R., Eck, John D.. 1994-07-01. Improved Helmet-Padding Material. https://ntrs.nasa.gov/citations/19940000376
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