Accu-Cool® 342

Accu-Cool® 342 is a heat transfer fluid meeting Boeing BMS 3-42, designed for the Boeing 787. It provides heat transfer for the aircraft's Integrated Cooling System (ICS), Power Electronic Cooling System (PECS) and optional Forward Cargo Air Conditioning System (FCAC); the reservoirs are filled using specially designed ground support equipment (GSE). NSF registered.

Specification

• Boeing BMS 3-42 (QPL)

Typical Properties

• Colour: orange; density at 25 °C: 1.0445–1.0485 g/cm³
• Boiling point: 108–115 °C (226–239 °F); flash point: none
• Freeze point: −43 to −51 °C (−46 to −60 °F)
• pH: 8.0–10.5; refractive index: 1.3966–1.4008; reserve alkalinity: min. 5.1
• Viscosity at 29 °C (85 °F): 5.64–6.49 cP; shelf life: unlimited

Packaging

• 3.8 L (1 gal) bottles, case of 4 · 18.9 L (5 gal) pail · 208 L (55 gal) drum · 1249 L (330 gal) tote