Testing Result of PBI Gold^®

Stay Tough after Thermal Exposure
We put both samples of fabric subjected to thermal exposures that simulated flashover conditions (50/50 radiant/convective heat flux of 2.0 cal/cm² s for 5 seconds). Burst strength (ASTMD-3787) was determined before and after thermal exposure. The aramid fabric’s loss of burst strength is associated with severe embrittlement of the fabric. The sample of PBI Gold^® resists embrittlement and retains significant strength, offering an added margin of safety after thermal assault.

At the same time, by the testing of international laboratory, BTTG, it has been proven that the performance of PBI Gold^® fabric exceeds EN469 and NFPA requirements.

Property Test Performance Requirement Performance Attained 6.1 Flame spread outer shell EN 532 No holing No Flaming debris After flame 2 s After glow 2 s No holing No Flaming debris No after flame No after glow 6.1.1 Flame spread inner fabric EN 532 No holing No Flaming debris After flame 2 s After glow 2 s No holing No Flaming debris No after flame No after glow 6.2 Heat transfer flame EN 367 HTI24 13 HTI24 - HTI12 4 HTI24 = 26 HTI24 - HTI12 = 7 6.3 Heat transfer Radiation EN 366 Method B 40kW/m2 t2 22 s t2 - t1 6 s Transmission factor 60% t2 = 29 s t2 - t1 = 6 s Transmission factor = 28% 6.4 Residual strength EN 366 Method A 10kW/m2 Tensile strength (ISO 5081) of outermost material 450N Warp Weft 1868N 1422N 6.5 Head resistance Annex A of EN 469 All materials, no ignition, melting or dipping. Shrinkage 5% All materials, no ignition, melting or dipping. Shrinkage Outer fabric 2% Moisture barrier <1% Thermal barrier/Inner lining <1% 7.1 Tensile strength outer material ISO 5081 450N Warp 2022N Weft 1470N 7.2 Tear strength outer material ISO 4674 Method A2 25N Warp 190.4 Weft 173.2 7.3 Surface wetting EN 24920 Grading 4 Grade 5 7.4 Dimensional change ISO 6330/5077 Not to exceed ± 3%   Warp Weft Outer fabric -1.8% -1.3% Moisture barrier -1.6% -2.4% Thermal barrier/Inner lining -1.6% -0.9% 7.5 Penetration by chemicals EN 368 with chemicals: NaOH 36% HCL 30%H2SO4 White spirit Chemicals > 80% run off No penetration to innermost surface Chemicals Run off (%) Penetration 40%NaOH 99.3 Nil 36%HCL 99.1 Nil 30%H2504 98.8 Nil White spirit 95.8 Nil 7.6 Hydrostatic pressure EN 20811 None set Hydrostatic head 500cm 7.7 Water vapour resistance BS 7209 (Replace EN 31092) None set Water vapour permeability = 447 g/m2/24hr WVP Index = 66%

All test performed on standard configuration consisting of 200 gram PBI GOLD^® Rip-stop Outer Shell Fabric, Gore-tex^® E-89 Water Barrier, 150 gram Aramid Felt
Thermal Barrier and 105 gram Kermel Viscose Lining.
Non-NAMAS accredited tests
 

Test Type NFPA Specification 200g/m2PBI GOLD® 255g/m2PBI GOLD® Flame Resistance FSTM 191-5903 Char length, in FSTM 191-5905 Consumed % 4.0 -- 0.2 4.0 0.2 4.0 Thermal Protective Performance (TPP) (Gore-tex® E-89, Arakite®) 35.0 39.6 40.4 Trapezoidal (slow) Tear Resistance, warp x fill (psi) 22 x 22 31 x 42 35 x 48 Elmendorf (fast) Tear Resistance, warp x fill (lbs.)ASTM D-1424 -- 30 x 27 48 x 50 Mullen Burst Resistance (lbs) ASTM D-3787 After 5 sec. TPP Exposure -- -- 371 120 534 138 Abrasion: Wyzen beck, warp x fill (Rating:1=worst, 5=best) 15000 cycles -- 4 x 4 4 x 4