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Helmets for Structural Firefighting shall meet or exceed NFPA
1971 Standard on Protective Ensemble for Structural Fire Fighting 2007
Edition (Pertaining to Structural Fire Helmets).
Certification/verification shall be furnished by written documentation
supplied by a recognized independent third party test laboratory.
A sample helmet meeting the requirements of this specification shall be
supplied upon request for inspection and verification of compliance within
10 working days.
The authority having jurisdiction reserves the right to accept bids
submitted per their evaluation based upon compliance to the standard
performance and any other applicable requirements concerning fit and
function.
The authority having jurisdiction reserves the right to accept the most
appropriate helmet based on the above stated criteria without regard to
lowest price offerings.
Successful bidders shall ship helmets per award from the manufacturer within
14 working days of receipt of order from the distributor.
General:
Helmets conforming to this specification are designed to help protect the
firefighter from head and neck injuries related to structural firefighting
activities.
The helmet manufacturer shall be a certified ISO 9001 company to assure
quality procedures and production capabilities.
Physical Configuration
The basic helmet shall be a flared, rear-brim design with a length of
15-5/8", a width of 12-1/4" (at the faceshield hardware) and a height of 7".
Shell
The helmet shell shall be of Traditional style with 4 primary and 4
secondary ribs bisecting the dome. The shell shall be comprised of a
composite fiberglass with a thermoset resin. Color pigment shall be added to
the resin as part of the manufacturing process that molds the helmet to help
maintain appearance by masking chips and scratches that might occur in daily
wear and tear. Matching paint shall also be applied to the outer finish of
the helmet. The shell finish shall be available in white, yellow, red,
black, blue, orange and lime-yellow.
The edge of the composite shell shall have an aluminum reinforced,
elastomeric edge beading that is secured at the rear of the brim by a
stainless steel clip and D-ring fastened by a stainless steel rivet. The
edge beading shall not melt, drip or ignite when tested to NFPA 1971-2007
Section 5-2.4 Heat Resistance requirement.
A stamped, embossed, brass sheet front shall be provided in the form of an
eagle to be attached by two solid brass bolts and nuts. The beak of the
eagle shall be formed to hold the top of a leather identification shield.
Two brass, support arms shall fork and extend downward from the eagle head
3-1/2" from the tip of the eagle beak to form the lower supports for
attachment of the leather identification shield. An arched, brass bar shall
be attached to the two lower support arms of the eagle to form a cross bar
support. An 8-32 threaded hole shall be provided at the lower support arms
of the eagle to accept the two brass screws which hold both the cross bar
support and the leather identification shield.
Impact Liner System
The impact liner shall consist of a urethane foam liner glued to a black
high-heat resistant inner shell with a heat deflection temperature > 220° F
@ 264 psi. The urethane foam liner shall be formed without the use of CFC's
to eliminate the potential for additional expansion when subjected to heat
during actual use.
The black inner shell shall have four 1" x 3" pieces of adhesive-backed
Velcro® hook material attached, two to each side, to secure the ear/neck
protector at the sides of the inner shell.
Crown Strap Suspension System
The crown strap suspension system shall be three 3/4" nylon web straps
attached to 6 nylon keys. The keys shall be locked into the lip of the inner
shell against the urethane impact liner.
Ratchet Headband
The helmet shall have a quick-adjustment sizing capability by means of a
ratchet adjustment system attached to a heat-resistant nylon headband. The
headband shall be attached to the inner shell by four black acetal buttons
(two front, two rear). The headband shall have the ability to be raised or
lowered inside of the inner shell by location points on the headband. This
adjustment shall not affect the height of the helmet on the firefighter's
head.
The ratchet portion of the headband shall have a ratchet height adjuster
located at the rear of the headband, inside of the inner shell, to permit
the ratchet to be positioned for comfort on the nape of the firefighter's
head. This ratchet height adjuster shall permit at least 1" of travel by
means of three height adjustment keys for proper fit. This independent
adjustment component shall have a 3/4" piece of adhesive-backed Velcro hook
material attached at the center rear of this component to secure the rear
portion of the ear/neck protector.
Brow Pad
The headband shall be supplied with a fire retardant (FR) cotton brow pad,
backed with foam cushion padding material at the forehead, that is removable
for laundering and replacement. Attachment to the headband with stitching
will not be permitted.
Chin Strap
The chin strap shall be two pieces of 3/4" black Nomex® webbing with a super
tough nylon quick release buckle and a chrome-plated postman's slide
fastener.
The male side of the quick-release buckle shall be anchored to the right
side of the outer shell with a dielectric anchor block secured to the
faceshield mounting bracket with 2 stainless steel screws and 2 stainless
steel acorn nuts. The long portion of the chin strap with the female side of
the quick-release buckle and the postman's slide fastener shall be attached
to the left side of the outer shell in the same manner.
When the chin strap is connected and fully extended, maximum length shall be
at least 24" when measured from one anchor block to the opposite anchor
block.
Ear/Neck Protector
The ear/neck protector shall consist of a 6 oz. rip-stop Nomex outer shell
backed with FR cotton flannel for comfort and protection. A 1" strip of Velcro loop
material shall be stitched in one continuous band across the top of the
outer shell of the ear/neck protector for attachment to the inner shell.
When properly attached to the inner shell of the helmet, the ear/neck
protector shall have the following minimum coverage to the sides and rear of
the helmet brim:
1. 6" from the sides of the helmet brim at the chinstrap.
2. 6-1/2" from the center rear of the helmet brim.
Faceshield
The faceshield shall be a hard-coated PPC material 4" x 15" that is molded
in the formed position and designed to fit the contour of the helmet brim.
The faceshield shall be certified to meet the optic requirements of ANSI
Z87.1 2003 Standard for Eye and Face Protection. This certification shall be
in addition to compliance with NFPA 1971 requirements for heat and impact
performance.
When mounted, the faceshield shall permit a minimum retractability of 90° in
the stowed position.
The faceshield shall be mounted to the brim of the outer shell by a
glass-reinforced, flame resistant, nylon handwheel/stainless steel threaded
stud attached to a brass T-nut which is supported by an aluminum washer and
mounting bracket. The faceshield hardware shall be tested to NFPA 1971-2007
Section 5-2.5 Flame Resistance Test. The mounting bracket shall be secured
to the brim of the outer shell by the chinstrap screws and acorn nuts. A
thermoplastic spacer washer shall be used to bridge the mounting bracket
adjoining the edge beading.
Retro-reflective Trim
The outer shell shall have 8 pentagon-shaped, fluorescent lime-yellow,
retro-reflective markings equidistantly located around the circumference of
the dome. The reflective materials shall be glass bead based to maximize the
resistance to heat exposure experienced in firefighting. Vinyl based
reflective materials will not be considered equal.
Warranty:
The manufacturer shall warrant to the original purchaser that the entire
helmet (excluding faceshield) shall be free of defects in material and
workmanship, under normal use and service, for a period of two years from
the date of manufacture. The faceshield is not warranted.
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