I dont have to do any asbestos sampling, they take care of that. The 70% is the number that i used from the previous post, and the GC was fine with that number. The glue is yellow, I pulled up a tile while i was there. I am going to look up the scraper for my trackloader. If it will work as well as the dedicated floor stripper that I can rent I will get that as the rental is almost 7000 for this job.