Oxygen and acetylene regulator CGA numbers

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I need to know the CGA number for each of my regulators shown below. It appears from a chart I've seen that my oxygen reg has CGA 540 and acetylene has CGA 510, but I am not experienced with this. I thought it might say somewhere on the regulators but can't find numbers.
Reply:Your assumptions are correct.  What happened to the knobs on your regulators?
Reply:Thanks. I just have one knob that screws down into either regulator and don't know why I don't have two of them.
Reply:That'll make it hard to use both at the same time, wont it?
Reply:Originally Posted by rlitmanThat'll make it hard to use both at the same time, wont it?
Reply:Do not, by the way, pressurize a regulator that has no knob.
Reply:http://www.concoa.com/cgachart.html has all of the CGA info.Most acetylene regulators are CGA 510, a few are CGA 300. Most oxygen regulators are CGA 540.
Reply:I found the other knob. At first, I thought they gave me just one knob for two regulators.
Reply:Originally Posted by bryanbankesterI found the other knob. At first, I thought they gave me just one knob for two regulators.
Reply:PLEASE get some training before you blow yourself up. I am not kidding and I am not being sarcastic!
Reply:Originally Posted by bryanbankesterI found the other knob. At first, I thought they gave me just one knob for two regulators.
Reply:You CAN, IF you study hard and thoroughly, survive without formal classroom training. It's not available everywhere.Thorough study beforehand and practice outdoors in a safe area would be a very good idea.