What is the minimum glycol content required in Type one de-icing/anti-icing fluid?

Type one de-icing/anti-icing fluid is primarily used to remove ice and snow from aircraft surfaces and to provide anti-icing protection during ground operations. The glycol content in these fluids is critical for their effectiveness in both melting existing ice and preventing further accumulation.

The minimum glycol content required for Type one de-icing/anti-icing fluids is set at eighty percent. This high concentration of glycol ensures that the fluid has a lower freezing point, allowing it to effectively and quickly melt ice and prevent the formation of new ice. Additionally, this concentration contributes to the fluid's desired viscosity and performance characteristics during application and in various temperature conditions.

Understanding the requirements for glycol concentration is essential for flight engineers and ground personnel to ensure safe and effective de-icing procedures are followed, thereby facilitating safe aircraft operations in winter weather conditions.