Types of head protection

Select, and have each affected employee use, the type of head protection that will protect the affected employee from the hazards identified in the assessment ... 

Changes in the type of head protection to be used render previous training obsolete or... 

There are several different types of head protection but the one most commonly used in construction is the safety helmet (or hard hat). This is used to protect the head from falling objects and knocks and has an adjustable strap to ensure a snug fit. Some safety helmets come with attachments for ear defenders or eye protection. 

Wear your goggles. Eye injuries are extremely serious and can be mitigated or eliminated if you keep your goggles on at all times. And I mean over your eyes, not on top of your head or around your neck. There are several types of eye protection available, some of it acceptable, some not, according to local, state and federal laws. I like the clear plastic goggles that leave an unbroken red line on your face when you remove them. Sure, they fog up a bit, but the protection is superb. Also, think about getting chemicals or chemical fumes trapped under your contact lenses before you wear them to lab. Then don t wear them to lab. Ever. 

The arc rating must be a minimum of 4 cal/cm less than the estimated incident energy. Note that 1926.960(g)(5)(v) permits this type of head and face protection, with a minimum arc rating of 4 cal/cm less than the estimated incident energy, at any incident energy level. 

Note that 1926.960(g)(5) permits this type of head and face protection at any incident energy level. 

Since up to 40 percent of the body s heat is lost through the exposed head, some form of head protection is vital for cold-weather workers. Available options range from knit caps to balaclavas, a type of cloth headgear that covers the head and most of the face, leaving only the eyes or eyes and mouth exposed. For someone who will be wearing a hard hat or hearing protection, a knit ear band or knit or flannel hard-hat liner may provide sufficient protection. Insulated earmuffs made of fleece and lined with synthetic materials will keep the ears warm but they are not as effective as hats at conserving overall body heat. 

The enclosure type of hearing protection completely surrounds the head like an astronaut s helmet. This t e of protection is not too popular due to its cost and discomfort. 

In selecting head protection, the hazard(s) must be correctly identified. Head protection may be required against falling objects, impact, sideways crush, chemical splash, excessive heat or contact with hot surfaces. There may be a requirement also to protect the face and neck, as well as attachments for other forms of equipment, e.g. face shields. The compatibility of the head protector with other protective equipment, e.g. face mask, must be considered in the initial selection. There are basically two types of head protector ... 

Other relatively inexpensive personal protective items that are not absolutely essential but should be considered are protective garments and gloves. One-piece coveralls with head covers and booties made from lightweight plastic such as Tyvek are relatively inexpensive, semi-repellent, and disposable. These types of suits are used in the nuclear and chemical industries to provide an added protection against contamination. Tyvek suits have sewn seams and are not recommended for chemical protection, except for vapors of low toxic solvents. Saranex-coated Tyvek or other heavy multilayer suits are required for long-term protection from chemicals. These heavier specialized suits significantly increase heat stress and should not be used by untrained personnel. 

These interference effects are far less common. Under this heading, some authors classify the enhancement of signals from several, otherwise refractory, elements by fluoride. The use of protective agents (e.g. EDTA for calcium or 8-hydroxyquinoline for aluminium or chromium) are also examples of this type of effect. 

Figure 6.43 Cable entry for high voltage cables with sealing heads (cast resin). Type of protection EEx e I, EEx e II Certificates BVS 89.B.1098, BVS 89.C.2022 For cables with diameter 50... 80 mm.

Personnel protective equipment may be used in certain circumstances where exposure to airborne particulates contaminated with chemical carcinogens could occur. In those situations, personnel should be equipped with a complete clothing change, as well as respiratory protection selected on the basis of work performed, type of chemical used, and containment equipment. The respiratory protection may be a face mask, respirator [selected from those approved by the National Institute for Occupational Safety and Health (NIOSH)] (4, 5), or emergency breathing air system. In the latter case, a head hood or a complete protective suit may be used with a breathing air supply system. Figure 2. 

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