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�- ..0V AMERICAN NATIONAL STANDARD K61.1-1981 satisfactory fit.If ammonia vapor is detected within the gas mask facepiece, the facepiece fit is improper, the ambient location downwind from populated communities concentration is excessive,or the canister is exhausted.The or heavily traveled highways. wearer should return to fresh air immediately to take 2,10.8 If liquid ammonia contacts the skin or appropriate corrective measures. The life of a canister in service is controlled by the concentration of ammonia vapor to eyes, the affected area should be promptly and which it is exposed.Canisters must not be opened until ready thoroughly flushed with water for at least fifteen for useand should be discarded afteruse.Unopened canisters minutes. Do not use neutralizing solutions or may be stored for as long as three years.All canisters should ointments On the affected areas. A physician be dated when received because this limited life. In should treat all cases of e e eX osure to li uid addition to this protection.an independentlysupplied,positive Y P 4 yressure self-contained breathing apparatus approved by ammonia. NIOSH/MSHA must be used for entry into concentrations of ammonia vapor that are immediately dangerous to life or health. The American National Standard. Practices for 2.11 Filling Densities Respiratory Protection. Z88.2t, should be referred to wherever respirators may be used. (See Par. 1.3.9 page 8.) tSee Appendix C for availability. 2.11.1 The filling densities for nonrefrigerated containers shall not exceed the following: **(b) One pair of protective gloves. Aboveground Underground ++(c) (12 Uninsulated 56%* 58% ** One pair protective boots. (d) One protective slicker and/or protective ) Insulated 57% pants and jacket.- (3) DOT containers and cylinders shall be (e) Easily accessible shower and/or at least 100 filled in accordance with DOT Regulations. gals.(379 L)of clean water in open top container. 2,11.2 The filling density for refrigerated (f)flexFlexible ittle ingh0000dedilatioagoggesan , storagetanksshallbesuchthatthetankswillnot or full spiel hood ventilation goggles and one full face shield. be liquid full at a liquid temperature correspond- ing to the vapor pressure at the start-to-discharge 2.10.4 Each employee shall be provided with pressure setting of the pressure relief valve. ( � suitable gloves and a pair of flexible fitting, 2.11.3 If containers are to be filled according hooded ventilation goggles and, as an option, a tollquidlevel byany gaging method other than a full face shield worn over the goggles when fixed lengthdiptubegage,each container should making, breaking or testing any ammonia have a thermometer well so that the internal connection,transferring ammonia or performing liquid temperature can be easily determined and maintenance on an ammonia system under the amount of liquid and vapor in the container pressure. corrected to a 60 F (15.6 C)basis. 2.10.5 Each tank motor vehicle transporting 2 12 Transfer of Liquids anhydrous ammonia, except farm applicator vehicles, shall carry a container of at least five 2.12.1 Anhydrous ammonia shall always beat gallons of water and shall be equipped with one a temperature suitable for the material of con- pair of protective gloves, a full face gas mask, a struction and design of the receiving containers. pair of flexible fitting hooded ventilation goggles Ordinary steels are not suitable for refrigerated and, as an option, one full face shield to be worn ammonia.See Appendix R of API Standard 620 over the goggles.The driver shall be instructed in "Recommended Rules for Design and Construc- their use and the proper action to take to provide tion of Large Welded Low-Pressure Storage for his safety. Tanks"for materials for low temperature service. 2.10.6 At an ammonia installation of 1000 2.12.2 At least one attendant shall supervise gallons (3.79 ma) or less, the employer shall the transfer of liquids from the time the connec- provide a container holding at least five gallons tions are first made until they are finally (18.9 L) of clean water or ready access to a disconnected. running water supply for emergency use by employees. The water container must have an 2.12.3 Flammable gases or gases which will opening suitable to permit flushing the eyes in reactwith ammonia(such as air)shall not be used the event of contact with ammonia. to unload tank cars or transport trucks. 2.10.7 If a leak occurs in transportation 2.12.4 Containers and cylinders shall be filled equipment and it is not practical to stop the leak, or used only upon authorization of the owner. the driver should move the vehicle to an isolated 2.12.5 Containers and cylinders shall be gaged •This corresponds to 82%by volume at-28F(-33.3 C),85%by "Gloves,boots•slickers,jackets and pants shall be made of volume at 5 F(-15 Q.87.5%by volume at 30 F(-1.1 Q.and rubber or other material impervious to ammonia. 90.6%by volume at 60 F(15.6 Q. 14