The iron and sulphur still behave like iron and sulphur in the mixture, but iron sulphide has different properties from both iron and sulphur. You can separate the iron from the mixture using a magnet but this does not work for iron sulphide. 1  Page.
Search for: An Airworthiness Directive (A.D.) is a directive issued when the FAA realizes that a perilous condition exists in a product (aircraft engine, airframe, appliance or propeller). They notify aircraft operators and owners of potentially unsafe conditions that need special inspections, alterations, or repairs.
This Guide established the occupation structure of the Air Force officer force and implements Air Force. Policy Directive (AFPD) 36-21, Utilization and Classification of Air Force Military PersonnelThe . occupational structure is flexible to permit officer personnel to broadly specialize as necessary to meet. changing mission requirements. Refer to AFI 36-2101, Classifying Military Personnel (Officer and.