Chemical Hazards - Composite Safety Chemical Hazards - The materials most commonly used in composite manufacture are: resins, catalysts, and strengthening materials (fiberglass, Kevlar, Scorefoam). Polyester, vinylester, and epoxy are the most commonly used resins today with the catalysts being either Methyl Ethyl Ketone Peroxide (MEKP), Benzoyl Peroxide, or an epoxy Part B catalyst (depending on the system used). Fiberglass, carbon fiber, Kevlar and Scorefoam are the most commonly used strengthening materials. Depending on the use of the material, they all produce various hazards. The hazards commonly experienced with these types of materials are: overexposure to vapors, inhalation of particulate fiber, industrial...

Cold Weather Driving Living and working in cold areas means having to navigate cold weather driving. In Wyoming, the weather can change very quickly. Many accidents could be avoided if you take the time to learn and practice these tips for driving safely during snowy and icy conditions: Perhaps the deadliest danger of all is "black ice." Black ice forms on a roadway, usually due to snow melting and re-freezing. Since it is almost invisible, drivers fail to recognize black ice conditions and may drive at normal speeds-often resulting in very serious accidents. Always be alert to the possibility of black ice when...

Chemical Hazards Hazardous Materials Identification System Under the Hazard Communication Standard put forth by OSHA, virtually all hazardous chemicals used in the workplace are required to have labels that indicate the type and level of the potential hazard. The warning labels used to identify chemical hazards have a universal color and numbering system. They also utilize a letter designating what type of personal protective equipment is needed. This makes it easier for you to tell what type and level of hazard you are dealing with. Colors are used to show the specific kind of hazard, and numbers within the colors are used...

Dermatitis Dermatitis is an inflammation of the skin from exposure to an irritant. The degree of inflammation is affected by the type of skin (pigmentation, dryness, hairiness), age, sex, season of the year, history of previous skin disease or allergies, and personal hygiene. Although one exposure to a substance may be enough to cause a skin reaction, workers can become sensitized through prolonged and repeated exposures to a substance. The delay can be as short as a day, but can be as long as several months. Generally, causes of dermatitis are chemical, mechanical, physical, or biological. Chemicals can produce reactions ranging from chemical...

Bloodborne Pathogens (BBP) Bloodborne Pathogens - Safety At All Levels Individuals who are infected with a bloodborne pathogen may not know they are infectious. Hepatitis B Virus (HBV) or Human Immunodeficiency Virus (HIV) may not show symptoms. For this reason, all human blood and body fluids should be considered as if infectious, and all precautions should be taken to avoid contact. This simple rule is known as "universal precautions." In the workplace, bloodborne pathogens (BBP) may be transmitted when blood or other infectious body fluids come in contact with mucous membranes (your eyes, nose, mouth); non-intact skin (due to cuts, abrasions, burns, rashes,...

Avoiding Electrical Shock Electrical shock hazards can be found in all industries. Avoiding electrical shocks both at home and at work requires awareness of the hazards and respect for this "Silent Killer." The human body has a low resistance to electricity, making it a good conductor, like most metals. Unlike metals, however, the human body does not respond well when electricity passes through it. Physical results include thermal burns, disruption of normal heart activity, severe muscle contractions, and even death. The most common and serious electrical injuries occur when electrical current flows between the hands and feet. This happens when a person...

Assured Equipment Grounding and Ground Fault Circuit Interrupters (GFCI) Electric shock, and too often fatalities, occur on construction jobsites when temporary power systems are in use. All construction workers who operate power tools should receive training in the systems that safeguard them from electrical hazards. What is the difference between an "Assured Equipment Grounding Program" and GFCI? An Assured Equipment Grounding Program is a scheduled system for testing construction site electrical tools and extension cords to assure their proper grounding, polarity and resistance. A Ground Fault Circuit Interrupter (GFCI) is equipment that serves as a circuit breaker if continuous ground continuity...

Hot Work Procedures Hot work may include spark and high heat-producing job tasks such as grinding, welding, soldering, thermal or oxygen cutting or heating. Advanced planning and safe work procedures help prevent workplace fires caused by hot work activities. Get training on hot works tools and processes. Know how to assess the fire risk, prevent fire, extinguish a fire, and activate an emergency response. If you are a designated fire watch, get annual training on these procedures. Wear the appropriate personal protective equipment for hot work, including tinted eye protection and a face shield. Wear fire-retardant clothing and a welding vest and...

Chocks And Blocks An essential part of a safe working environment when loading or unloading trucks and trailers is the proper use of equipment, which includes chocks and blocks. Every year, workers are severely or fatally injured because the wheels of a truck or trailer were not chocked. Vehicle drivers are also injured when trailers overturn because unblocked freight shifted during travel. When wheels aren't meant to roll. Accidents are caused each year when a truck or trailer rolls away from the dock because no one took time to chock the wheels. In some cases, drivers who got out of the cab...

Be Cautious With Sulfuric Acid Sulfuric acid is widely used in industry for a variety of purposes such as metal cleaning and etching, the production of fertilizers, petroleum products, dyes and explosives. Like all acids it is reactive. Simply put, this means that when the liquid comes into contact with another material, something is going to happen. This is where the danger lies. If sulfuric acid comes in contact with any part of your body, rapid destruction of tissue takes place, capable of causing severe burns. When a burn occurs, it also gives rise to the possibility of secondary problems such...