This has been discussed before, but here is a little info from the Washington Department of Labor that just came to my attention. I pass it on for die hard PVC pipe users or for those setting up their shop now:
"Last year, a section of PVC pipe being used for compressed air exploded 27 feet above a warehouse floor. A fragment of the pipe flew 60 feet and embedded itself in a roll of paper. Fortunately, nobody was in the area at the time."
"A PVC pipe explosion in a new plant in Selah broke an employee's nose and cut his face."
"PVC piping buried 3 feet underground at a Yakima manufacturing plant exploded, opening up a crater approximately 4 feet deep by 3 feet across."
Ref: http://www.osha.gov/dts/hib/hib_data/hib19880520.html
Safety Hazard Information Bulletin
"Last year, a section of PVC pipe being used for compressed air exploded 27 feet above a warehouse floor. A fragment of the pipe flew 60 feet and embedded itself in a roll of paper. Fortunately, nobody was in the area at the time."
"A PVC pipe explosion in a new plant in Selah broke an employee's nose and cut his face."
"PVC piping buried 3 feet underground at a Yakima manufacturing plant exploded, opening up a crater approximately 4 feet deep by 3 feet across."
Ref: http://www.osha.gov/dts/hib/hib_data/hib19880520.html
Safety Hazard Information Bulletin