b'Okuma America Corp.Avoid mishaps with best practices in oil mist control.By Mike Meyer 2. Soluble oil. Composed of 30% to 85% refined petroleum-based oil, along with emulsifiers and M etalworking applications that require cool- other additives, soluble oil lubricates and cools ants or lubricants produce aerosolizedbut may result in more smoke and residue than particulates composed of tiny oil droplets. Whilestraight oil produces.they are often too small to see with the naked3. Semisynthetic. This contains 5% to 30% pe-eye, they can jeopardize worker safety andtroleum-based oil, along with a complex emulsi-productivity. fier package. Semisynthetic provides good lubri-Metalworking fluids generally can be catego- cation and heat reduction and is cleaner than sol-rized as one of four types based on their differentuble oil.properties and recommended applications. 4. Synthetic. This is composed of detergent-1. Straight oil. This can be mineralthat is, pe- like compounds rather than petroleum. Synthetic troleumor vegetable oil and mainly lubricatesis usually the cleanest option and effectively re-rather than cools. duces heat.48APRIL 2020 ShopSafety.indd 48 3/16/20 4:56 PM'