In our last training class, conducted by Airgas National Welders, the trainer pointed out that you should not stand in front of the regulator when opening a gas cylinder. This was the first time that I had seen it listed as a specific issue but it makes a lot of sense, Larry Ben RuekbergTo Sent by: DCHAS-L DCHAS-L**At_Symbol_Here**LIST.UVM.EDU Discussion List cc Subject [DCHAS-L] Gas Regulator Question 04/30/2010 09:30 AM Please respond to DCHAS-L Discussion List Long ago, when I was taking welding lessons, the instructor taught us to avert our faces from the regulator gauges when opening a gas tank because of a possible defect in the regulator that would pressurize the gauge and explode the glass. Since that time, I have read several books on laboratory practices and do not recall any of them alluding to the practice of averting oneีs face when opening a gas cylinder. Should they? With all the accumulated experience in this group, has anyone heard of this practice or hazard? (Note: My old instructor might have been confusing a defective regulator hazard with the one resulting from using a contaminated regulator with an oxygen cylinder.) Thank you very much, Ben
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