CLEANROOM FLAME RESISTANT GARMENTS
Vidaro Corporation has manufactured garments made from Chemstat 919® for NASA and the Aerospace Industry for many years. Chemstat 919® is inherently flame resistant, static dissipative and cleanroom compatible meeting safety concerns in areas where static electricity is a potential hazard and where volatile fuel may exist. Chemstat 919® meets the safety requirements of the NFPA 70e Standard for Electrical Safety Requirements, arc rating at 6.5 cal/cm2.

Chemstat 919® may be used wherever cleanroom conditions represent a potential flame or electrical hazard, and where concern about explosive or high heat exists.

Chemstat 919® is composed of 100% multifilament Nomex® with a patented conductive grid.
Technical Data
 
Yarn Content, by weight 100% multifilament Nomex® <1% carbon
Construction 2/1 twill, 1/4 in (6.5 mm) grid
Weight (ASTM D 3776) 5 oz/yd2 (170 g/m)
Voltage Decay
(Fed Std 101C Method 4046)		 0.15 secs
Surface Resistivity (AATCC 76) 109 ohm/sq
NASA Triboelectric Voltage Decay 250V @ 0.35 secs, 100V @ 5 secs
Flame Retardance (NASA NHB 8060.1B) Class 1
Permeability (ASTM D 737) 10 cfm (30 L/dm2/min)
Fabric Cooling Rate
(ASTM E 96 Method B, upright)		 High:14.42 g/m2/hr
Chemical Compatibility
   salts and alkalis
   organic acids and chemicals
   jet fuel
   mineral acids
excellent
excellent
excellent
good
Laundry Compatibility DI water, perchlorethylene, Freon TF
Sterilization Compatibility steam autoclave, gamma radiation (250 Mrad)
Durability (ASTM D4157) 15,000 cycles no noticeable wear
Optical Rating (ASTM E 284) opaque

Chemstat 919®, Chemstat 939® is a registered trademark of Stern and Stern Industries, Inc.
Nomex® is a registered trademark of E.I. Dupont de Nemours and Company