Impact Resistance 2 : The ability of a protector to resist the force of an object that comes into contact with the lens or eye protector at the velocity specified in this standard
Grainger, Inc. (Maintenance, Repair and Operating MRO), Glossary of Safety Terms, IL, USA 2012. www.grainger.com/images/GlossaryofSafetyTermsPDF.p df, (IndS/Maint, Repr and Opr - Amer) {79}