Brazing copper LP lines

Is it acceptable to braze copper (opposed to flare) propane lines? This would all be for 10 psi or less.

I believe NFPA states 1,000 degree F connections, which a braze would be. I've never seen it done, but curiosity has me. I suppose if you purge with nitrogen and treated the whole system like refrigeration.

Just for discussion, I'm not actually considering it!