United American Nurses (UAN) is an Americanunion affiliated with the American Nurses Association (ANA) and the AFL-CIO. Unlike other unions that some American nurses belong to, such as the Service Employees International Union, the UAN represents only registered nurses (RNs). A union (labor union in American English; trade union in British English; either labour union or trade union in Canadian English) is a group of workers who act collectively to address common issues. ... The AFL-CIO is the largest labor union federation in the United States. ... Nursing is a discipline focused on assisting individuals, families and communities in attaining, re-attaining and maintaining optimal health and functioning. ... Service Employees International Union (SEIU) is the largest labor union in the AFL-CIO and the fastest growing one in the United States and Canada, representing 1. ... Registered Nurses are professional nurses who often supervise the tasks performed by LPNs, orderlies and nursing assistants. ...
UAN is a solution of urea and ammonium nitrate in water used as a fertilizer.
The most commonly used grade of these fertilizer solutions is UAN 32.0.0 (32%N), which consists of 44.3% ammonium nitrate, 35.4% urea and only 20.4% water.
The solutions are quite corrosive towards mild steel (up to 500 MPY on C1010 steel) and are therefore usually equipped with a corrosion inhibitor to protect tanks, pipelines, nozzels, etc.
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