An employee who was hired as a sweeper and handyman was discovered sitting in a deposit of blue sludge, on the bottom of a deep steel vat. The man had, in the past, cleaned tanks with other workers, but there was no reason for his being inside the container at this time. The deceased man was removed with some difficulty because there were no records of what substance was actually in the tank. An analysis had to be done quickly. It was discovered that the vat contained deadly hydrogen cyanide gas, so proper respiratory protection had to be found for the […]