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.
Introduction. Annex 16 of the Guide to Good Manufacturing Practice: Certification by a Qualified Person and Batch release, is the subject of a concept paper by the European Medicines Agency (EMA).The annex was originally included in the GMP guide in 2002.MP Annex 16 (QP). Annex 16 of the Guide to Good Manufacturing Practice: Certification by a Qualified Person and Batch release, is the subject of a concept paper by the European Medicines Agency (EMA).