Case Study 1: Oxygen Deficiency in Barge Tank 

I don't do this type of work but this all seems like essential information regardless.

Really interesting, thanks for the video, hopefully none of us encounter such a situation, if we do, we will have prior knowledge!

thanks very informative

Make more case study especially on construction sites

2:12 is it wrong that this made me lol?

As a white person, I'm offended that my Race isn't represented in the proper proportion!