Document 2J1mzqp8Mxqw4dkmGEjDyy1ka

Wednesday, December 28, 1980 FEDERAL REGISTER 13813 either solid or with openings not over 1 inch in length. Elevators 50-204.34 Elevator inspection.. Elevator inspection by a competent elevator inspection service or mainte nance contract on an annual basis will be acceptable as evidence of satisfactory installation and maintenance. 50-204.35 Hoistways. All hoistway openings at the floor level to the elevator shall be protected by doors or gates either manually or me chanically operated, and interlocked with the elevator control so that it is impossible to start the elevator until the door or gate is locked in the closed posi tion, and also so that it is impossible to open the door or gate when the car is not at the lauding. 50-204.36 Under rur safety device. All elevators other than hydraulic ele vators shall be equipped with an under car safety device operated by speed gov ernor control that will hold the elevator in case of cable failure or over speeding. 50--204.37 Hatch limit controls. All types of elevators shall be equipped with upper and lower travel limit de vices that will normally bring the car to rest at either terminal, and a final limit switch that will prevent the movement in either direction if opened by the car as the result of excessive, over travel in either direction. Xllvmination 50-204.42 Mluiimiin standard). (a) Illumination shall be provided and distributed to all working areas as re quired in these regulations. (b) Seeing tasks requiring discrimina tion of fine detail under conditions of fair contrast and where the nature of the work is very exacting and prolonged shall be provided with a minimum of 100 foot-candles of illumination. (c> Seeing tasks requiring discrimina tion of detail over prolonged periods of time and under conditions of moderate contrast shall be provided with a mini mum of 50 foot-candles of illumination. <d) Seeing tasks requiring moderate discrimination of detail over intermit tent periods of time and under conditions of normal contrast shall be provided with a minimum of 30 foot-candles of Illumination. (c) Casual seeing tasks not involving discrimination of fine detail shall be pro vided with a minimum of 10 foot-candles of illumination. ff) Rough seeing tasks not requir ing critical seeing shall be provided with a minimum of 5 foot-candles of illumination Ladders .>0-204.17 Construction mill use of portublo luddcrx. Portable ladders shall be substantially built, set level and well secured. 50-204.48 Hulls of portable ladders. Hails of portable ladders shall always project at least three feet above work ing level and shall be of sound material. 50-204.49 Painting of wooden ladders. Wooden ladders shall not be painted, as painting covers up defects. Linseed oil or oil stain shall be used Instead. 50-204.50 Stcpladders. All stepladders shall be provided with an automatic locking device or spreader of not more than 40 degrees to hold the front and back sections in open position. g 50-204.51 Fixed luthiers. (a) Rest platforms: If fixed ladders are used to ascend to heights exceeding 30 feet, a landing or rest platform shall be provided for each 30 feet or fraction thereof unless the ladder Is provided with safety c.ages, (b) Rails: Rails of fixed ladders to landings shall extend a distance of at least 3 feet above the landing. (c) Rungs: The rungs may be omitted above the landing. Where an employee must step a greater distance than 14 inches from the ladder to roof, tank, hoist, etc., a landing shall be provided. <d) Guard rails: All fixed ladder landings shall be equipped with a stand ard guard rail and toe boards, so ar ranged as to give the safest possible ac cess to the ladder. Such platforms shall not be less than 24 inches in width. Aisles and Passageways 8 50-204.56 Maintenance. Permanent aisles and passageways shall be kept cleav and in good repair, with no obstructions across or In aisles that might cause tripping. Where, due to lack of proper identification, aisles and passageways are likely to become hazardous, they shall be clearly defined by painted lines, curbings, or other methods of marking. 50--201.57 Aisle widths. Where industrial trucks are in custom ary use, one-way traffic aisles shall be at least 2 feet wider than the widest vehicle. Two-way aisles shall be at least 3 feet wider than twice the width of the widest vehicle. Material Storage 50-201.62 Height. (a) All material in bags, containers, or bundles, stored in tiers, shall be stacked, blocked, Interlocked, and limited in height so that it is stable, so that it is secure against sliding or collapse. (b) Where nutomatio sprinkler pro tection is provided, clearance of at loast 18 inches shall be maintained between the tops of materials and the underside of lowest beams or other overhead structures. Where reliance is placed on hose streams, clearance of at least 3 feet shall be maintained between the tops of piles and the underside of the lowest beams, girders, or other obstruc tions which restrict the play of hose streams over the material. 8 50-204.63 Small article*. Small articles shall be stored in con tainers suitable to the material, such a:> small cans or trays that can be stackod. 50--204.64 Pipe and oilier long stock. Pipe and other long stock shall be stored in suitable racks or blocked to prevent spreading or rolling. Projecting ends shall be protected by location, rail ings, or barriers. 50-204.65 Hazardous cIiciuicnK Hazardous chemicals shall be distinc tively marked to indicate their nature and stored in containers or locations suitable to the material. 8 50--204.66 Cases in cylinders. (a) Cylinders shall be supported in an upright position so as to prevent them from falling or rolling. (b) Cylinders shall be kept away from excessive heat, such as the direct rays of the sun. (c) Cylinders shall be stored away from combustible materials. Cd) Empty cylinders shall be plainly marked "EMPTY," and the valves shall be closed. The empty cylinders Bhall be segregated from the full cylinders and returned to the supplier as soon as practicable. (e) Valve covers shall be kept in place at all times when the cylinder is not in use. Outdoor Storace 50-201.71 Aisle spacing. Aisles shall be maintained between piles, between buildings, and between piles and the boundary of the storage site. Aisles shall be wide so as to reduce the danger of spread of fire from pile to pile and to permit ready access for fire fighting or emergency removal of material. 50-204.72 Housekeeping. The entire storage site shall be kept free from unnecessary accumulations of combustible materials. Weeds and grass shall be kept down and the area kept clean. 50--204.73 Drainage. Proper drainage shall be provided. 8 50--204.74 Clciirmiec sign*. Clearance signs to warn of clearance limits shall be provided. 50-204.75 Derail anil hamper IrlnrWt. Derail and bumper blocks shall be pro vided on spur tracks. 50-201,76 Traffic enttlrol signs. Traffic control signs to warn pedes trian, vehicular, and railroad traffic shall be provided. 50-204.77 Open pits, tanks vats, tlilclie*. etc. Covers or guard rails shall be provided to protect nil open pits, tanks, vats, ditches, etc. near which people are regularly employed. Flammable Liquids 50--20 1.82 Sources of ignition. All sources of ignition shall be pro hibited hi areas where flammable liquids are stored, handled, and processed. Suitable warning and "No Smoking" signs shall be posted in all such areas.