Check the accuracy of the aneroid gauge or mercury column. Connect the blood pressure set to a pressure gauge or meter using a Y-connector, as shown in the test setup . Wrap the cuff around a simulated limb (coffee can or pipe, 3 to 4 in diameter). Close the bleed valve, and inflate the cuff to about the maximum scale indication. Read the scale indicator after 1 min to determine the rate of pressure loss in mm Hg/min. This rate should not exceed 15 mm Hg/min. If it does, recheck all fittings, especially Luer taper fittings, and repeat the task