42 CFR 84.93 - Gas flow test; open-circuit apparatus.
(b) The flow from the apparatus shall be greater than 200 liters per minute when the pressure in the facepiece of demand-apparatus is lowered by 51 mm. (2 inches) water-column height when full container pressure is applied.
(c) Where pressure demand apparatus are tested, the flow will be measured at zero gage pressure in the facepiece.
Title 42 published on 2014-10-01
no entries appear in the Federal Register after this date.