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ISO 7010 states on all symbols with a first aid cross, that it "may be replaced with another element appropriate to cultural requirements". In countries with a Muslim -majority population, an appropriate symbol is the crescent .
The top of the Eye or Eye/Face wash water flow must not fall below 33" (83.8 cm) and can be no higher than 53" (134.6 cm) from the floor surface floor the user is standing on (Section 5.4.4). The head or heads of the Eyewash or Eye/Face wash must be 6" (15.3 cm) away from any obstructions (Section 5.4.4).
Adequate eye protection should always be required for everyone in the room if there is a significant risk for eye injury. High-intensity beams that can cause fire or skin damage (mainly from class 4 and ultraviolet lasers) and that are not frequently modified should be guided through opaque tubes.
P280: Wear protective gloves/protective clothing/eye protection/face protection. P281: Use personal protective equipment as required. P282: Wear cold insulating gloves and either face shield or eye protection. P283: Wear fire resistant or flame retardant clothing. P284: Wear respiratory protection.
Eye protection is protective gear for the eyes, and sometimes face, designed to reduce the risk of injury. Examples of risks requiring eye protection can include: impact from particles or debris , light or radiation , wind blast , heat , sea spray or impact from some type of ball or puck used in sports.
The scale numbers range from LB1 to LB10, where the number is a lower limit for the optical density, i.e. LBn means that OD > n, or <, where T is the transmittance. The minimum scale number for a given laser with a beam diameter of 1 mm depends on the working mode and the wavelength as follows (EN 207:2017):
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