| A | B |
|---|
| acetone | fragrant liquid chemical used in acetylene cylinders |
| acetone | can absorb up to twenty-eight times its own volume of acetylene |
| acetylene | fuel gas used for welding and cutting, produced as a result of the chemical reaction between calcium carbide and water |
| acetylene | C2H2 |
| acetylene | fuel gas used for welding and cutting that is colorless, lighter than air, and that has a strong garlic-like smell |
| acetylene | unstable above pressure of 15 psig |
| acetylene | when burned in the presence of oxygen, it produces one of the highest flame temperatures available |
| earmuffs | protect the entire outside and inside of ear from noise and metal fragment damage |
| earplugs | protect the inner ear from noise and metal fragment damage |
| electrical ground | connection from the welding machine chassis to the ground to prevent damage |
| electrical resistance | keeping electricity from flowing freely by ways of insulation, it's lowered in the presence of moisture |
| electric shock | occurs when one comes in contact with poorly insulated electrical leads and wires and can cause serious injury or death |
| electric shock | electricity flows throughout the body, causing burns on skin, muscles, and excessive heartbeat |
| exhaust pickups | component of a forced ventilation system that has sufficient suction to pick up fumes, ozone, and smoke from the welding area and carry them outside the area |
| flash burn | instant burn usually to the eyes, caused by ultraviolet light |
| flash burn | injury caused by ultraviolet light and feels like something is in the eye |
| flash glasses | shaded glasses that protect the wearer's eyes from flash burns |
| forced ventilation | uses pickups and a series of ducts and fans to carry away harmful fumes |
| full face shield | covers entire face to prevent injury from flying metal |
| goggles | surrounds the eyes and fully protects them from flying metal |
| infrared light | usually detected as heat, can cause serious burns |
| Material Specification Data Sheet | collection of all safety and specification of shop equipment gathered for the use and protection of employees |
| MSDS | Material Specification Data Sheet |
| natural ventilation | allows fumes and ozone to flow freely out of the welder's area without the use of forced ventilation |
| safety glasses | certified to protect the eyes from flying metal and other debris |
| Type A fire extinguisher | use for combustible solids (e.g., paper, wood, cloth) |
| Type A fire extinguisher | identifying symbol is a green triangle enclosing the letter |
| Type B fire extinguisher | use for combustible liquids (e.g., oil, gas) |
| Type B fire extinguisher | identifying symbol is a red square enclosing the letter |
| Type C fire extinguisher | use for electrical fires |
| Type C fire extinguisher | identifying symbol is a blue circle enclosing the letter |
| Type D fire extinguisher | use for fires involving combustible metals, such as zinc, magnesium, and titanium |
| Type D fire extinguisher | identifying symbol is a yellow star enclosing the letter |
| ultraviolet light | most dangerous of the light waves |
| ultraviolet light | can cause first- and second-degree burns to a welder's eyes or exposed skin |
| ultraviolet light | a welder cannot see or feel the light waves while exposed to it, so he/she must stay protected when in the area of any arc welding |
| valve protection cap | protects a high pressure cylinder's valve from damage |
| ventilation | process of getting rid of harmful fumes |
| visible light | detected by the human eye |
| visible light | though visible and not considered hazardous, it can still cause temporary night blindness |
| warning label | shows possible dangers and risks (and how to avoid them) associated with the use of certain machines and tools |
| welding helmet | protective helmet with shaded lens that protects eyes from different types of light produced from welding |
| welding helmet | helmet with a shaded lens that protects eyes from flying metal slag |
