Word came down from on high, that I wasn’t to use 60/40 for teaching anymore. Usually went through about 1kg annually, and I had just stocked up. I think I had just gotten 8kg, or something like that, because of the bulk rebate, about a year before. And what was I to do? We weren’t allowed to have the solder on premises anymore.
So anyway, 60/40 for 1.0 and 0.7mm and some sn/pb/ag for 0.25mm. And no, I don’t have ventilation for my workspace, but I do have enough solder to last a couple of lifetimes.