FR Fabrics for Workwear Garments

I. Core Standards for FR Workwear

NFPA 2112 (US)

Scope: Industrial flame resistance (e.g., welding, petrochemicals).

Requirements: TPP ≥25 cal/cm², arc flash protection (ATPV ≥25 cal/cm²), no melting/dripping.

EN ISO 11612 (EU)

Scope: Heat and flame protection (e.g., firefighting, metalworking).

Classification:

A1: Low hazard (e.g., welding sparks).

A2: High hazard (e.g., flash fires).

GB 8965.1-2020 (China)

Scope: Flame resistant clothing for general industry.

Requirements: TPP ≥12 cal/cm², carbonization length ≤100mm.

AS/NZS 4824 (Australia/NZ)

Scope: Arc flash protection (equivalent to NFPA 70E).

II. Common Flame Retardant Fabric Materials

Aramid Fibers

Flame Retardant Cotton

Proban® Treated Cotton: Treated with chemicals to reduce flammability.

Blended Fabrics

Synthetic Fibers

Modacrylic: Self-extinguishing, used in low-risk applications.

III. Testing Methods for FR Workwear

Test Standard Purpose

Vertical Flammability ASTM D6413Measure after flame time and burning behavior.

TPP (Thermal Protective Performance)ASTM F1930 Simulate heat exposure (cal/cm²).

Arc Flash (ATPV)ASTM F2178Determine arc thermal protection threshold.

Break Strength ASTM D5034Ensure durability under stress.

IV. Applications by Industry

Welding Requirements: EN ISO 11611 (welding spatter resistance). Electrical Fabric: Arc-rated materials . Requirements: NFPA 70E CAT2 (ATPV ≥8 cal/cm²).

Petrochemical. Firefighting.etc