Food-Grade Hydraulic Oils are designed for use in the food processing and packaging industry and meet USDA and/or FDA guidelines for incidental contact with food. All of PSC's Food Grade Hydraulic Oils are registered by NSF International as H1 lubricants for use where incidental food contact may occur. They are also certified as meeting Canadian Food Inspection Agency requirements for use in federally registered food plants. Additionally, all of our Food Grade Hydraulic Oils are certified Halal, Kosher and Pareve. Food Grade hydraulic oil that is labeled an ISO VG 46 oil must have a midpoint, or average, kinematic viscosity of 46 mm2/s (or cSt, centistokes).