Double Block and Bleed Isolation
Synopsis: The presentation explains why double block and bleed isolation is effective, and describes the purpose of each valve in the double block and bleed station.
Foam
Synopsis: Using photographs of water, soap bubbles, and cigarette smoke, the reason foam causes problems in columns with trays is pictorially explained. A pictorial representation will reinforce the need to manage foam, and reinforce the need to exercise good foam management practices.