I'm interested in circuit design and reliability, not so much compliance testing.
"Just to be clear, you have a gun that meets the standard you are required to test to."
No, I have a very low humidity room and some woollen cloth as well as a plastic pipe. And a bug zapper.
If needed, I could DIY something with more punch.
"I assume this if for some sort of pre-compliance test so have a lot of freedom."
No, but I would be happy if I could do better than the requirements.