Protection for eyes

Nevertheless, prescription safety glasses, that are made-to-order, are readily available through specialized sources only, and though a little more expensive, should be used exclusively for the full-time laboratory researcher or staff. It has been observed that the contact lenses do provide certain extent of protection against possible mechanical damage to the eye however, the wearing of protective goggles is still very much essential and almost a must. 

It is pertinent to mention here that either the usage of close-fitting-safety spectacles or, preferably, a vison covering the entire face may provide a much enhanced level of protection in the event of chemical splashing or spraying of corrosive or toxic hot liquids or gases. 

Importantly, while carrying out experiments that are either suspected to be explosive or hazardous in nature, additional protection afforded by safety-screens is vehemently recommended. 

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Protection for eye, ear, head, hand, foot, respiratory, and falls and equipment maintenance. 

DAB = 3,3 -diaminobenzidine tetrahydrochloride dihydrate. Cat. no. 5972SA from BRL. Caution Handle with extreme care in fume-hood using protection for eyes and hands. For a stock solution, add 10 mL of 0.05MTris-HCl buffer, pH 7.6, to 100 mg DAB powder. Mix well. Transfer in 1-mL aliquots to Eppendorf tubes. Wrap each Eppendorf tube in foil (DAB is light sensitive) and store at -20 C. A 0.05% solution should be made up just before use Mix 575 pL of 0.05M Tris-HCl, pH 7.6,0.OIM imidazole, plus 33.75 pL DAB stock solution and 18.75 pL hydrogen peroxide. 

As part of American National Standards Institute (ANSI) Z87 two-level classification for impact protection for eye and face protectors, high impact lenses and all frames... 

The importance of proper eye protection cannot be overemphasized. The U.S. National Institute of Occupational Health and Safety (NIOSH) estimated that in 1982, bums and wounds, such as cuts or scratches, accounted for almost 15 percent of all occupational eye injuries, of which 44 percent were caused by chemicals (79). Laboratory researchers frequently use chemicals, cleansers, and disinfectants that can cause severe injury if splattered into the eye. For example, concentrated quaternary disinfectants splashed in the eye can cause blindness. Personnel must be cautioned as to the danger and given instmction in use of personal protection for eyes, face, and hands. In addition, infection can be transmitted through the conjunctiva of the eye if a liquid containing pathogenic microorganisms splashes into the eye. 

Handling of soluble uranium compounds requires appropriate clothing to prevent skin contact and eye protection to prevent any possible eye contact. Protective clothing requirements for insoluble uranium compounds should prevent repeated or prolonged skin contact. Eye protection for use in handling insoluble uranium compounds should prevent any possibiUty of eye contact. Respirators should always be worn to prevent inhalation of uranium dust, fumes, or gases (38). 

Personal eye-protection - Optical test methods. Partially superseded BS 2092 1987 Personal eye-protection - Non-optical test methods. Partially superseded BS 2092 1987 AMD 1 Personal protection - Equipment for eye and face protection during welding and allied processes (AMD 9902) dated January 1998. Superseded BS 1542 1982 AMD 3 Gas heated catering equipment. Safety requirements (AMD 10573J dated December 1999. Superseded BS 5314... 

Lachrymator A lachrymator is an irritant that causes tearing (watering of the eyes). Examples include onions, tear gas, and pepper spray (capsaicin). Some typical lachrymating chemicals are thionyl chloride (SOClj) and acrolein (CHj=CH-CHO). Certain chemicals may say lachrymator on the label so treat these with respect. Use these only in a fume hood. Goggles or safety glasses are not adequate protection for lachrymators, because the fumes can still reach your eyes directly or through inhalation. 

Health Hazards Information - Recommended Personal Protective Equipment Eye protection Symptoms Following Exposure Vapors from very hot material may irritate eyes and produce headache, drowsiness, and convulsions General Treatment for Exposure Remove fresh air. Wash affected skin areas with water. Flush eyes with water Toxicity by Inhalation (ThresholdLimit Value) 5 mg/m Short-Term Exposure limits Not pertinent Toxicity by Ingestion Grade 1 LDjq 5 to 15 g/kg Late Toxicity Birth defects in rats polyneuritis in humans Vapor (Gas) Irritant Characteristics Not pertinent liquid or Solid Irritant Characteristics No appreciable hazard. Practically harmless to the skin Odor Threshold Data not available. 

Health Hazards Information - Recommended Personal Protective Equipment Individual breathing devices with air supply neoprene gloves protective clothing eye protection Symptoms Following Exposure Inhalation of concentrated gas will cause suffocation. Contact will liquid can damage eyes because of low temperature. Frostbite may result from contact with liquid General Treatment for Exposure INHALATION remove to fresh air use artificial respiration if necessary. EYES get medical attention promptly if liquid has entered eyes. SKIN soak in lukewarm water (for frostbite) Toxicity by Inhalation (Threshold Limit Value) Data not available Short-Term Exposure Limits Data not available Toxicity by Ingestion Not pertinent (boils at -24.7°C) Late Toxicity Data not available Vtqtor (Gas) Irritant Characteristics Data not available Liquid or Solid Irritant Characteristics Data not available Odor Threshold Data not available. 

Never view the flame or hollow cathode lamps directly protective eye wear should always be worn. Safety spectacles will usually provide adequate protection from ultraviolet light, and will also provide protection for the eyes in the event of the apparatus being shattered by an explosion. 

Cleanliness comes very close to godliness in the laboratory. A worker always washes hands before eating or smoking, and many times in between. One thoughtful laboratory operator placed bottles of liquid skin cleanser and hand lotion next to all sinks. Apart from personal cleanliness, there are other important forms of protection for the worker. Most notable among these is eye protection. 

Some laboratory operations require the use of goggles, which effectively protect the eyes from splashes or missiles from all sides, or even complete face shields. The latter are uncomfortable to wear for extended periods of time, but they do give superior protection for jobs such as making concentrated solutions of sodium hydroxide. Many goggles are designed to be worn over regular glasses and are reasonably comfortable. 

Provide convenient showers, eye-wash facilities and appropriate respiratory protection for emergencies. 

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