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 certified ISO 9001 company to assure quality
procedures and production capabilities.
Physical Configuration
The basic helmet shall be flared, rear-brim design with a length of 14", a
width of 10" at the faceshield hardware and a height of 6-7/8".
Shell
The helmet shell shall be of contemporary style and shall be constructed of
heat-resistant composite of long strand 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 flame
resistant paint shall also be applied to the outer finish of the shell. The
shell finish shall be available in white, yellow, red, black, orange and
lime-yellow.
The edge of the outer 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.
The edge of the outer shell shall have aluminum reinforced, elastomeric edge
beading that is secured at the rear of the brim by a stainless steel clip
and D-ring fasted by a stainless steel rivet. The edge beading shall not
melt, drip or ignite when tested to NFPA 1971-2007.
Impact Liner System
The impact liner shall consist of a urethane foam liner glued to a black ABS
inner shell. 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 ABS 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 side 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 ABS 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 firefighters
head. This ratchet height adjuster shall permit at least 1" of travel by
means of three height adjustment slots 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.
The ratchet housing shall be wrapped in a cushion-backed leather cover to
enhance fit and comfort at the nape of the head. This leather ratchet cover
shall be attached by four pieces of Velcro hook and loop material to permit
removal for cleaning and replacement.
Brow Pad
The headband shall be supplied with a fire retardant (FR) knit brow pad,
backed with foam cushion padding material at the forehead. This brow pad
shall be attached by Velcro hook and loop material to permit removal for
laundering and replacement. Attachment to the headband with stitching will
not be permitted.
Chin Strap
The chin strap shall consist of 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. 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 two layers of 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 portion 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:
- 6" from the sides of the helmet brim at the chin strap.
- 6-1/2" from the center rear of the helmet brim.
Faceshield
The faceshield shall be a hard-coated high heat thermoplastic 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 1971-2007
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 compliant to NFPA 1971-2007.
The mounting bracket shall be secured to the brim of the outer shell by the
chin strap screws. A thermoplastic spacer washer shall be used to bridge the
mounting bracket adjoining the edge beading.
Retro-reflective trim
The outer shell shall have 5 - 1" x 4" fluorescent lime-yellow,
retro-reflective markings located around the circumference of the outer
shell. 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 manufacturer. The faceshield is not warranted.
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