1 0 Helicopt er s are no t ed f or deaf ening noise In f act some are so noisy that bo th ear plugs and muf fs should be w orn t o reduce the noise le v el t o acceptable le v els Cust omer s should insist that air craf t are eq uipped with suffcient earmuf fs t o accommodat e the maximum number of allo w able passenger s Air hamm er s drilling eq uipment musk eg tract or s sno wmobiles and outboar d engines also pr oduce ear numbing vibrations be w are and tak e pr o t ectiv e measures Hands W ear appr opriat e glo v es when handling mat erials or doing hea vy manual labour Driller s and their helper s should use burlap glo v es when handling greasy r ods W ear long slee v es and long pants at all times These pr o t ect e xposed skin and eliminat e the need t o remo v e bracele ts and w atches Cold w eather w or king and sno wmobile driving req uire insulat ed mitts specially designed f or the job such as insu lat ed gauntle ts f or sno wmobiling w at er and fuelpr oof insulat ed glo v es f or handling fuel and salt We ar acid resistant glo v es when handling acids or corr osiv e mat erials Af t er handling radioactiv e mat erials w ash hands thor oughly with soap and w at er t o pre v ent ingestion of radioactiv e par ticles W ear g lo v es when handling dynamit e as nitr ogly cerine ma y permeat e the skin and can cause se v ere headaches