A: Businesses drug test their applicants and employees to minimize their exposure to. the risks of workforce drug use. While all drug test specimen types â urine, oral fluid. and hair â have their advantages, urine drug testing is by far the most flexible and.
How to Interpret Hose & Tube Dash Sizes. People new to hydraulic and pneumatic industries often ask about what is a hose or tube dash size. Simply put, a dash size refers to a diameter of a hose or tube in 1/16 increments. For example, -6 hose would indicate a hose with inside diameter of 6/16 - or 3/8. In another example, a -10 tube would indicate a tube with an outside diameter of 10/16 - or 5/8.
There are several types of hose designed specifically for the fire service. Those designed to operate under positive pressure are called discharge hoses. They include attack hose, supply hose, relay hose, forestry hose, and booster hose. Those designed to operate under negative pressure are called suction hoses.