Silica Part IV: Time
In part I of this series on silica dust and the OSHA PEL, we described what a permissible exposure limit (PEL) is and the three factors that make up the OSHA PEL: air, dust and time. We also learned that exposure is calculated in terms of micrograms per cubic meter (μg/m3), and we interpreted the current OSHA PEL as 50μg/m3.
The Connection Between The History Of Wet & Dry Diamond Blades
About 20 years ago we began to understand the silica dust problem and recognized how big the problem was for our business. It makes a huge mess, it costs a great deal of money, and is a threat to the health and safety of our industry as a whole.