I recently extended our LP gas line to the kitchen so I could install a gas range. Since I'm technically not a qualified professional, I had the gas company come and test the line for leaks. There was a small leak detected which I was told was "about half a pound after 9 minutes" (I'm not sure what this even means). He said it's within the legal standard but I said I wanted the leaks fixed. He ended up making sure the fittings were all tight and had no noticeable leaks with an electric detector and said it was good to go.
This morning, I noticed that when I put my head over the range I could smell a little gas that was very noticeable if I wafted it to my nose. I could also smell a little gas when I opened the bottom drawer. I should mention that last night I was showing my wife how it works and I turned a burner on without igniting it to show her that the gas will just come out. This was only for a few seconds. Is it normal to smell a little gas with a gas range? Could it be that I'm just smelling the residual gas from the previous night? I'm not sure if I should call a plumber to check for leaks.
Note: Location is US