Northwestern University's Office for Research Safety has two new videos available: One is about nitric acid and what happens when it's mixed with organic materials, and the other is about using vented caps.
Nitric Acid Waste from ORS Safety Training on Vimeo.
Vented Caps from ORS Safety Training on Vimeo.
My spreadsheet of safety videos is available here. As always, please let me know if I should add something!