NFPA 1971 Design and Performance Requirements for Garments

Garment Design Requirements

Download as a pdf | See Performance Requirements

Item NFPA 1971, 2013 Edition
Structural and Proximity Fire Fighting
Optional Requirements CBRN garment requirements
Garment Composite Outer shell, thermal liner, and moisture barrier configured as a single layer or multiple layers
Liner Attachment Means of securing liner to shell; no more than 1'' between liner system and coat sleeves or pant legs and no expandable attachments
Liner Coverage Extend to neckline of coats, waistline of pants, within 1'' of coat cuffs and within 3'' of hems on coats and pants
Garments and Closure Systems Must provide continuous moisture and thermal protection; secured with position fasteners (hooks and dees or zippers)
Collar Minimum 3'' in height; must have closure system; Proximity collar lining shall not be reflective
Sleeves Liner 1'' from cuff; must have close-fitting wristlet
Hardware Free of rough spots, burrs, or sharp edges; inward-facing hooks with three attachment points; cannot penetrate through all three layers unless covered
Snaps This requirement eliminated in 2013 edition
Sewing Thread Inherently flame resistant
Fastener Tape This requirement changed in the 2013 edition and was moved to be a performance requirement
Cargo Pockets Means of drainage and flaps with closure
Metallic Closure Systems/Metal Components Shall not contact body unless covered by closure flap
Liner System Required to have thermal and moisture barrier and means to secure to shell
Zippers Moved to performance with additional requirements
Sizing
  • Male and female patterns
  • Chest—Men: 34–60; Female: 28–50 in 2'' increments or to order
  • Sleeves—M: 32–38; F: 28–34 in 1'' increments or to order
  • Waist—M: 30–60; F: 28–50 in 2'' increments or to order
  • Lengths—M: 24–36; F: 24–34 in 2'' increments or to order
Trim Retroreflective and fluorescent trim in stated placements and must appear to be continuous; trim must be minimum 2'' wide; retroreflective surface at least 58'' wide; gaps not to exceed 1'' allowed on coat inner sleeve and pant inseams or wherever there is a zipper; Proximity specifically prohibits trim
Drag Rescue Device Required in Coats Accessible from exterior of coat; able to be deployed with gloved hand; designed to prevent accidental deployment
Coats Required to Have Wristlet Permanently attached and designed so as not to allow any gap in thermal protection
Reinforcements Must meet all flame and heat requirements of standard; Proximity specifically prohibits non-reflective reinforcements, with the exception of 1'' cuffs at coat and pant hems

6/13

Garment Performance Requirements

Download as a pdf | See Design Requirements

Item NFPA 1971, 2013 Edition
Structural and Proximity Fire Fighting
THL 205 w/m2 for structural
Proximity exempted (aluminized fabric impermeable)
TPP 35
Tear Resistance Shell — 100N (22 lbs.)
Thermal — 22N (5 lbs.)
Moisture barrier — 22N (5 lbs.)
Shell Breaking Strength 140 lbs. (Structural); no requirement for Proximity
Fastener Tape Requirements for peel, shear, and cycle strength
Cleaning Shrinkage Maximum 5%
Seam Breaking Strength Major A = 667N (150 lbs.)
Major B = 334N (75 lbs.)
Minor and knits = 180N (40 lbs.)
Heat and Thermal Shrinkage, excluding hook and pile fasteners when body contact not possible Tested at 500°F for five minutes; no melting, separation, or ignition; hardware to remain functional; maximum shrinkage 10% in any direction; moisture barrier seams shall not drip or ignite; outer shell shall not char; hardware to remain functional
Thread Thread melting test at 500°F for five minutes
Flame Test on all Textiles, except: elastic and hook and pile fasteners when body contact not possible; labels on garment exterior Maximum char length of 4''; afterflame of no more than two seconds and no melting or dripping; harnesses, escape and ladder belts must meet requirement when they penetrate outer shell, are incorporated into closure system, or attached to pant
Metal Hardware 20-hr. corrosion test
Labels Legibility after five wash/dry cycles; must use brand names on labels (no generic fibers)
RPP Proximity test value is not less than 20 seconds
Outer Shell Water Absorption 30% or less
Water Penetration Barrier layer minimum resistance of 25 psi
Liquid Penetration Barrier and seams tested against five common liquids for one hr.
Viral Penetration Barrier and seams: One hr. against Phi-X-174 Bacteriophage
Whole Garment Liquid Penetration Test Three complete garments for each closure; tested as received; 20-minute test; Proximity tests one garment for each closure if design is same as Structural, without wash/dry preconditioning
Conductive, compressive, heat resistance Shoulders tested at 2 psi; knees at 8 psi; 25 seconds until second-degree burn
Water Penetration Resistance Barrier layer tested at 25 psi
Light Degradation Resistance Barrier layer only tested; no surface water after exposure
DRD Fabrics, Seams, Splices Minimum 1,573 lbs.
DRD Function Test Deployment and mannequin drag
Transmitted and Stored Thermal Energy Test Enhancements sewn to coat sleeves tested for stored energy; minimum time to second-degree burn 130 seconds; Proximity does not require stored energy testing
Garment Trim Coefficient of retro-reflectivity of minimum 100 cd/lux and fluorescent red, yellow-green, orange-red; Proximity specifically prohibits trim
Wet Flex No requirement in Structural; Proximity shells must show no sign of separation of coating or laminated from base fabric face
Adhesion After Wet Flex No requirement in Structural; Proximity shells must show no sign of separation of coating or laminated from base fabric
Flex at Low Temperatures No requirement in Structural; Proximity shells must show no sign of separation of coating or laminated from base fabric
Resistance to High Temperature Blocking No requirement in Structural; Proximity shells must show no sign of blocking

9/13

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