Deicing Fluid Colors

There are actually two types of de icing fluid one is orange and one is green according to a product safety sheet for one brand.

Deicing fluid colors. 120 60b ground deicing and anti icing program date issued december 20 2004 responsible office afs 220 description provides one means but not the only means for obtaining approval of a ground deicing and anti icing program and for ensuring compliance with far section 121 629. The fluid concentration within the fluid water mixture expressed as a percentage by volume this is not required for type 1 fluid the local time in hours and minutes at the beginning of the final or only de icing anti icing step optionally for type 2 and 4 fluids only the complete name of the anti icing fluid the brand name. The differences between type i and type iv de icing fluid. Codes and standards piping codes and standards asme ansi astm aga api awwa bs iso din and more.

This fluid is not to be used when temperatures are under 22 f. Designed to meet sae type i and ams 1424 specifications for de icing aircraft type 1 de icing fluid is made from propylene glycol. As such they can be used on any aircraft as they shear blow off even at low speeds. Deicing fluids come in a variety of types and are typically composed of ethylene glycol eg or propylene glycol pg along with other ingredients such as thickening agents surfactants wetting agents corrosion inhibitors colors and uv sensitive dye.

They also have the shortest hold over times hot or estimated times of protection in active frost or freezing precipitation. Holdover time hot is the estimated time that deicing anti icing fluid prevents the formation of frost or ice and the accumulation of snow on the critical surfaces of an aircraft. Sae international formerly known as the. The dye is intended to indicate which parts of the aircraft have been treated and to differentiate between fluids type i fluids are orange type iv fluids are green.

Hot begins when the final application of deicing anti icing fluid commences and expires when the deicing anti icing fluid loses its effectiveness. This fluid has a low viscosity and flows off of aircraft easily. Propylene glycol based fluid is more common because it is less toxic than ethylene glycol. Hazardous areas classification european standard european hazardous area classification in zones protection types.

Identifying colors used for fluids in piping systems. There are four standard aircraft de icing and anti icing fluid types. Before filling the tank with the deicing anti icing fluid it shall be established that the brand name and. Type i fluids are the thinnest of fluids.

Color mixing theory subtractive and additive color mixing theories.