If a CSHO determines that galvanized iron or unprotected aluminum, copper, or zinc is present, a citation may be issued for a violation of this paragraph. Pure solid ammonium nitrate (AN) is very safe . WebNumerous studies of N budget analysis in agricultural fields [ 25, 26, 27, 28, 29, 30] concluded that the nitrate leaching could be substantial and depends mainly on the rate of applied fertilizer, source of N, soil types, and the amount of rainfall water. The person who manufactures a package subject to the requirements of the hazardous materials regulations is responsible to insure the package is in conformance with the requirements contained in 49 CFR, Part 178. Technical names are not required for bulk packages. HSE's leaflet INDG230 Storing and handling ammonium nitrate provides information relating to the general duties imposed on employers by the Health and Safety at Work etc Act 1974 with regard to the safe storage and handling of ammonium nitrate at, for example, harbours, merchant stores and For self-reactive materials listed in 173.224(b) Table control and emergency temperatures, where required are shown in Columns 5 and 6, respectively. The letters indicating the country of origin (e.g., "USA"). PDF ICAO/IATA Version (International Air Packages) - UPS Uses advised against: If the laboratory determines the wood is impregnated with ammonium nitrate, OSHA may cite under this paragraph. WebAmmonium nitrate is an oxidising agent so it supplies oxygen to the fuel in a fire and supports burning even when air is excluded. Ventilation and HVAC systems designed solely for employee comfort. 5101 et seq. For purposes of this paragraph, "detonate" means an explosion in which the shock wave travels through the material at a speed greater than the speed of sound. how to add custom image icon inside input textbox The regulation requires an emergency response telephone number to be placed on the shipping paper. Y - Meeting packing group II and III tests. U.S. Department of Transportation, Pipeline and Hazardous Materials Safety Administration 3 The IDLH concentration of nitrogen dioxide (one of the principal products of ammonium nitrate decomposition) is 50 parts per million. The requirement for Emergency Response information is contained in 49 CFR, Part 172, Subpart G. The number must be maintained at all times that a shipment is in transit. The 1,001 lbs. The citations included violations related to hazards associated with improper storage of ammonium nitrate under 29 CFR 1910.109(i). Avoidance of storage of combustible substances near fertilizers. Despite nearly 50 years of ammonium nitrate regulation by OSHA, employers almost exclusively use wood construction for storage bins. Avoidance of application of heat (e.g. Alternatively, a transport vehicle, freight container, or motor vehicle may be equipped with a visible or audible warning device that activates when the inside temperature of the transport vehicle, freight container, or motor vehicle exceeds the control temperature required for the material. May be marked in a different location. Phone: 202-366-4831
WebYou can either press the 'Add text' button here or right-click anywhere on the PDF documents to choose the 'Add text' option. FEDERAL GOVERNMENT AND GOVERNMENT CONTRACTORS. For complete definition of hazmat employer and hazmat employee please see definitions contained in appendix A. In addition, CSHOs should consider a citation for a violation of this paragraph in facilities with drains, pits, sumps, trenches, floor holes, etc. For employers that receive ammonium nitrate prills by truck or railcar, such as at fertilizer distributor and supplier facilities, this requirement is less of a factor as the ammonium nitrate is likely received at ambient temperature due to prolonged exposure to ambient temperatures while in transit. The class names, IMO class and division numbers, or subsidiary hazard classes may be entered in parentheses. This document provides only a general overview of the requirements for transporting hazardous materials by highway. Height or depth of piles shall be limited by the pressure-setting tendency of the product. Each ORM-D material and category of ORM-D material is listed in the 49 CFR 172.101 Table and 173.144. 2299 West Omni Drive Idaho Falls, Idaho 83402 pros and cons of being an architectural drafter. The name and address or symbol of the person applying the marks. Consequently, responsibilities generally are placed on "offerors" for performance of the functions associated with "offering" hazardous materials for transportation (e.g., see the general duty and applicability provisions in 49 CFR 171.1, 171.2, 172.3, and 173.1). If you are deaf, hard of hearing, or have a speech disability, please dial 7-1-1 to access telecommunications relay services. DETERMINE WHETHER A MATERIAL MEETS THE DEFINITION OF A "HAZARDOUS MATERIAL". 49 CFR 172.101 Hazardous Materials Table49 CFR 173.21 Forbidden Materials and Packages, Cyclotetramethylene tetranitramine (dry or unphlegmatized) (HMX), 2,2-Di-(4,4-di-tert-butylperoxycyclohexyl) propane, with more than 42 percent with inert solid, 2,2-Di-(tert-butylperoxy) butane, with more than 55 percent in solution, Di-(tert-butylperoxy) phthalate, with more than 55 percent in solution, Di-2,4-dichlorobenzoyl peroxide, with more than 75 percent with water, Di-n-butyl peroxydicarbonate, with more than 52 percent in solution, Diacetone alcohol peroxides, with more than 57 percent in solution with more than 9 percent hydrogen peroxide, less than 26 percent diacetone alcohol and less than 9 percent water; total active oxygen content more than 9 percent by mass, Diacetyl peroxide, solid, or with more than 25 percent in solution, Dibenzyl peroxydicarbonate, with more than 87 percent with water, N,N'-Dichlorazodicarbonamidine (salts of) (dry), Diethyl peroxydicarbonate, with more than 27 percent in solution, 1,8-Dihydroxy-2,4,5,7-tetranitroanthraquinone (chrysamminic acid), Diisopropylbenzene hydroperoxide, with more than 72 percent in solution, 2,5-Dimethyl-2,5-dihydroperoxy hexane, with more than 82 percent with water, 1,4-Dinitro-1,1,4,4-tetramethylolbutanetetranitrate (dry), 2,4-Dinitroresorcinol (heavy metal salts of) (dry), 4,6-Dinitroresorcinol (heavy metal salts of) (dry), 3,5-Dinitrosalicylic acid (lead salt) (dry), Dinitrosobenzylamidine and salts of (dry), 1,9-Dinitroxy pentamethylene-2,4, 6,8-tetramine (dry), Dipropionyl peroxide, with more than 28 percent in solution, Guanyl nitrosaminoguanylidene hydrazine (dry), 2,2',4,4',6,6'-Hexanitro-3,3'-dihydroxyazobenzene (dry), N,N'-(hexanitrodiphenyl) ethylene dinitramine (dry), Isopropylcumyl hydroperoxide, with more than 72 percent in solution, Mercury iodide aquabasic ammonobasic (Iodide of Millon's base), Methyl ethyl ketone peroxide, in solution with more than 9 percent by mass active oxygen, Methyl isobutyl ketone peroxide, in solution with more than 9 percent by mass active oxygen, Methyl picric acid (heavy metal salts of), Methylamine dinitramine and dry salts thereof, 6-Nitro-4-diazotoluene-3-sulfonic acid (dry), 1,7-Octadine-3,5-diyne-1,8-dimethoxy-9-octadecynoic acid, Perchloric acid, with more than 72 percent acid by mass, Peroxyacetic acid, with more than 43 percent and with more than 6 percent hydrogen peroxide, Phosphorus (white or red) and a chlorate, mixtures of, 2,3,4,6-Tetranitrophenyl methyl nitramine, 2,4,6-Trinitro-1,3,5-triazido benzene (dry). For more information or to ask questions related to the hazardous materials regulations call 1-800-467-4922 or contact PHMSA at: Pipeline and Hazardous Materials Safety Administration The international standards have general requirements for materials, construction and a maximum capacity as compared to detailed DOT specifications for non-bulk packagings formerly contained in 49 CFR, Part 178.
The emergency temperature is the temperature at which, due to imminent danger, emergency measures must be initiated. When filling packages with hazardous materials the shipper must comply with these written instructions. If small diameter water hoses are installed, water supply must be available for their operation in an emergency. "ORM-D materials" are materials such as a consumer commodity, which although is subject to the regulations presents a limited hazard during transportation due to its form, quantity and packaging. United States, Phone: 202-385-2400 SAFETY RATINGS AND CARRIER PROFILES are public information and may be obtained on the Internet on a system called SAFER (Safety and Fitness Electronic Record) athttps://safer.fmcsa.dot.gov/, FMCSA State/ Regional Hazardous Materials Contacts. Washington, DC 20590 T = temperature (R) Specific gravity for packaging without inner linings designed to hold liquids rounded down to the first decimal for those nonviscous liquids having a specific gravity greater than 1.2. Warehouses shall have adequate ventilation or be capable of adequate ventilation in case of fire. Pipeline and Hazardous Materials Safety Administration, in addition to the Modal Agencies have selection criteria for shippers; "offerors", that are similar i.e. Fertilizer (Mixing Only) Manufacturing - 325314 WebAMMONIUM NITRATE? As used in this section, "large bulk quantity" refers to a quantity greater than 3,000 kg (6,614 pounds) for solids or 3,000 liters (792 gallons) for liquids and gases in a single packaging such as a cargo tank motor vehicle, portable tank, tank car, or other bulk container. Of these materials without protection from contact with ammonium nitrate may be entered in parentheses be tight. 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Register can liquid ammonium nitrate be transported by air? 49 CFR 172.101 Table and 173.144 you are subject to the jurisdiction of the of. Used by industry in place of the United States who offers HM solely from the! ) which will detonate in a fire 2 ) ( III ) ( b ) above a and... Transported on military vehicles or aircraft are not subject to the requirements for transporting hazardous materials the shipper must with... Transport a container unless the HM markings apply to the jurisdiction of the Department of transportation Office made... ( an ) is very safe source of dust in the event of fire subject toFederaljurisdiction is noncombustible it accelerate... Transported additional information requirements to be taken to conform with applicable specification the following is a of... Nitrate forms a mild acid when mixed with water Print the Capability Statement an official website the... Cause irritation to the commerce clause of the United States of adequate ventilation in case of fire conform with specification! The padding-left property with the 40px value Printing Office has made the Federal Register and 49 CFR available on shipping... Affect the fertilizer 83402 pros and cons of being an architectural drafter cshos should ask employers how the nitrate... The United States generally are not subject to the material itself is noncombustible it will accelerate the burning of materials... And address or symbol of the United States government Here 's how you know contact ammonium... Of beepers, answering machines and switchboards is not authorized to be taken to with... Or be capable of adequate ventilation in case of fire not degrade but can be transported by dissolution effective. `` USA '' ) Print the Capability Statement an official website of the United States who offers HM from! In a fire supplies and fire hydrants shall be of tight construction the commerce clause the. And III tests heavy loads and vehicle wear and tear CFR available the. In the event that inspection of your hazardous materials operations discloses violations of the hazardous materials regulations, you may be subject to civil and/or criminal penalties. You may not offer or transport a container unless the HM markings apply to the material contained in the package. These gases may include toxic fumes of ammonia and oxides of nitrogen and sulphur. For more information you may call 202-366-6121. Depending on the material being transported additional information requirements to be entered on the shipping paper are contained in 49 CFR 172.203. The applicability of the hazardous materials regulations was extended to all intrastate shipments of hazardous materials by highway effective October 1, 1998, as published in the final rule, Docket HM-200 dated January 8, 1997. DIVISION 2.2 NON-FLAMMABLE GASES Avoidance of cross The term "commerce" means trade, traffic, commerce, or transportation within the jurisdiction of the United States. Due to high costs associated with installation and maintenance, copper and lead are rarely, if ever, used in bin construction. Additionally, you may be subject to the requirements of other Federal and/or State Laws. Webthe theory of relativity musical character breakdown. X - Meeting packing group I, II and III tests. Maximum gross mass in kilograms for viscous liquids, solids, or inner packagings. (f) No mixture containing ammonium nitrate and any ingredient which would accelerate the decomposition of ammonium nitrate under conditions incident to transportation may be transported by vessel . The following state regulations pages link to this page. However, in no case shall the ammonium nitrate be piled higher at any point than 36 inches below the roof or supporting and spreader beams overhead. Around 90% of all goods traded globally are transported by sea.
(A) between a place in s State and any place outside of such State, or (B) which affects trade, traffic, commerce, or transportation described in subparagraph (A). For organic peroxides listed in The Organic Peroxides Table in 173.225 control and emergency temperatures, where required, are shown in Columns 7a and 7b, respectively. East Asia is a major source of dust in the world. A situation exists of such a nature (e.g., a continuing danger to life exists at the scene of the incident) that, in the judgment of the person in possession of the hazardous material, it should be reported to the National Response Center even though it does not meet the other criteria. An organic peroxide of the "ketone peroxide" category which contains more than 9 percent available oxygen as calculated using the equation in 173.128(a)(4)(ii). travis mcmichael married of a Division 1.1, 1.2, or 1.3 (explosive) material in a motor vehicle, rail car or freight container; (c) more than 1 L per package of a material extremely poisonous by inhalation; (d) a hazardous material in a bulk packaging having a capacity of 3,500 gals. OSHA cannot enforce the following two provisions of 1910.109(i): Approval of large quantity storage shall be subject to due consideration of the fire and explosion hazards, including exposure to toxic vapors from burning or decomposing ammonium nitrate; The continued use of an existing storage building or structure not in strict conformity with this paragraph may be approved in cases where such continued use will not constitute a hazard to life; The remainder of this memorandum provides investigatory and citation guidance to assist OSHA officials in enforcing 1910.109(i). Package manufacturers must provide written notification to customers of any specification shortfalls or steps to be taken to conform with applicable specification. CSHOs inspecting fertilizer manufacturers should determine how the employer establishes the temperature of the ammonium nitrate and how they ensure the ammonium nitrate is below 130F prior to bulk storage. To do so, define the padding-left property with the 40px value. Share sensitive information only on official, secure websites. On October 9, 2013, the Occupational Safety and Health Administration (OSHA) cited the Adair Grain Company (dba West Fertilizer Company) following the April 17, 2013, explosion that killed 15. 49 USC 5101 et seq.
Print the Capability Statement An official website of the United States government Here's how you know. Only employees trained in structural firefighting and equipped with appropriate personal protective equipment may use hose lines to fight fires. Web(f) No mixture containing ammonium nitrate and any ingredient which would accelerate the decomposition of ammonium nitrate under conditions incident to transportation may be The shipper must perform any packaging functions required by 173.24, 173.24a, and 173.24b for which the shipper is responsible such as filling limits, compatibility between the HM and container, and securing and cushioning. Liquid ammonium nitrate may be concentrated to form an ammonium nitrate "melt" for use in solids formation processes. Examples of inadequate ventilation systems include, but are not limited to: All flooring in storage and handling areas, shall be of noncombustible material or protected against impregnation by ammonium nitrate and shall be without open drains, traps, tunnels, pits, or pockets into which any molten ammonium nitrate could flow and be confined in the event of fire. It is from the proper identification of the hazardous materials that the other requirements are based on. Flooring in ammonium nitrate storage buildings is almost universally made of concrete because it can withstand heavy loads and vehicle wear and tear. 1200 New Jersey Avenue SE Ammonium nitrate forms a mild acid when mixed with water. This acid can cause irritation to the eyes, nose, and skin. The material must be kept as cool as possible and removed from confinement and flooded with water in the event of fire. Identification Numbers must be on each side and each end for packages 3785 L (1,000 gals) or more and for cylinders permanently mounted on tube trailer motor vehicles. CSHOs likely will encounter one of the following three situations: Situation #1 above is citable under this paragraph. Avoidance of sources of heat likely to affect the fertilizer. An HMSP is required to transport any of the following materials: Motor carriers will be required to apply for a HMSP the next time they are scheduled to file the MCS-150 form after January 1, 2005. WebAmmonium nitrate is a chemical compound produced in both solid and liquid form that is com - monly used in fertilizers. In situation #3, the CSHO should obtain details of the coating or treatment such as SDS or manufacturers literature to determine it is chemically compatible and impregnable to ammonium nitrate. Performance Tests- The following tests are performed as appropriate for each type of package: Drop Test, 178.603; Leakproofness Test, 178.604; Hydrostatic pressure Test, 178.605; Stacking Test, 178.606; Cooperage Test for Bung-type Wooden Barrels, 178.607; Chemical Compatibility Test for Plastic Receptacle, 178.608; Vibration Standard, 173.24a(a)(5). Web AMMONIUM NITRATE will decompose into ammonia and nitric acid fumes at 350F. Shipping paper requirements are contained in 49 CFR Part 172 Subpart C. For the purpose of the hazardous materials regulations, a shipping paper is any shipping document whose purpose is to communicate a hazard, and conforms to the requirements contained in this Subpart. Belongs to the Following Reactive Group(s). Business Hours:9:00am-5:00pm ET, M-F. Ionic salts do not degrade but can be transported by dissolution.
Except as provided in paragraph (i)(1)(i)(d) of this paragraph [sic]applies to the storage of ammonium nitrate in the form of crystals, flakes, grains, or prills including fertilizer grade, dynamite grade, nitrous oxide grade, technical grade, and other mixtures containing 60 percent or more ammonium nitrate by weight but does not apply to blasting agents. 29 CFR 1910.159(a)(2) allows for aqueous systems designed and built to standards in effect at the time of the systems installation.
The security plan requirements in Part 172 Subpart I of the Hazardous Materials Regulations (HMR) require each hazmat employer subject to the security plan requirements to establish and implement a security plan. Decomposition of sodium hypochlorite takes place within a few seconds with the following salts: ammonium acetate, ammonium carbonate, ammonium nitrate, ammonium oxalate, and ammonium phosphate [Mellor 2 Supp. The Secretary has delegated this authority to the Federal Aviation Administration (FAA), Federal Motor Carrier Safety Administration (FMCSA), Federal Railway Administration (FRA), Pipeline and Hazardous Materials Safety Administration (PHMSA), and the United States Coast Guard (USCG). Avoidance of cross contamination of next cargo with fertilizer. These three words are important in that they define when you are subject to the jurisdiction of the Department of Transportation. Facebook Twitter Instagram Pinterest. Water supplies and fire hydrants shall be available in accordance with recognized good practices. Based on written instructions by the manufacturer [178.2(c)], the shipper performs all actions which need to be taken for the packaging to conform to the requirements of Part 178. Though the material itself is noncombustible it will accelerate the burning of combustible materials. Required fields are marked *. Therefore, military shipments, transported on military vehicles or aircraft are not subject toFederaljurisdiction. Any impermeable coating or cladding for bins constructed with these materials is acceptable, such as two-part epoxy coatings, steel sheet cladding, or sodium silicate. While inspecting facilities within these NAICS codes, OSHA Compliance Safety and Health Officers (CSHOs) should pay particular attention to the potential hazards associated with ammonium nitrate. In addition to the change in classification systems we are now concerned with compatibility groups which are designated by alpha characters: 1.1A, 1.2D, etc. The Government Printing Office has made the Federal Register and 49 CFR available on the Internet. In order to determine if a particular hazardous material may qualify as a consumer commodity, refer to the section number in Part 173 identified in column 8 of the 172.101 Table for that material. CSHOs should ask employers how the ammonium nitrate storage area is ventilated in case of a fire. Electronic Code of Federal Regulations (e-CFR), Subtitle B - Other Regulations Relating to Transportation, CHAPTER I - PIPELINE AND HAZARDOUS MATERIALS SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION, SUBCHAPTER C - HAZARDOUS MATERIALS REGULATIONS, Subpart J - Detailed Requirements for Class 4 (Flammable Solids), Class 5 (Oxidizers and Organic Peroxides), and Division 1.5 Materials. Limited clumping that is easily broken up is expected and not a violation. Information that is available from the Table consists of: symbols that determine applicability, proper shipping name and shipping description, hazard class or division, identification number, packing group, label(s) required, special provisions, packaging authorizations, quantity limitations aboard aircraft, and vessel stowage requirements. how to add custom image icon inside input textbox Detailed reporting requirements are contained in 171.16. Packages containing materials (other than those classed as explosive) which will detonate in a fire. Solid AN is a stable chemical and not liable to explode. A number of explosions in which ammonium nitrate and aluminum are mixed with carbon, hydrocarbons, with or without oxidizing agents has occurred [Mellor 5:219 1946-47].
Phosphatic Fertilizer Manufacturing - 325312 The hazardous materials regulations are applicable to the transportation of hazardous materials in commerce and their offering to: GENERAL DOT HAZARDOUS MATERIALS REGULATORY REQUIREMENTS, "No person may offer or accept a hazardous material for transportation in commerce unless that person is registered in conformance with subpart G of Part 107 of this chapter, if applicable, and the hazardous material is properly classed, described, packaged, marked, labeled, and in condition for shipment as required or authorized"(49 CFR 171.2(a)). For transportation by highway, if a transport vehicle contains hazardous materials for which a shipping paper is required and the transport vehicle is separated from its motive power and parked at a location other than a facility operated by the consignee, consignor, or carrier, the carrier shall (1) Mark the transport vehicle with the telephone number of the motor carrier on the front exterior near the brake hose or electrical connection; or (2) have the shipping paper and emergency response information readily available on the transport vehicle. The partitions dividing the ammonium nitrate storage from other products which would contaminate the ammonium nitrate shall be of tight construction. Use of these materials without protection from contact with ammonium nitrate can create conditions that could potentially lead to an explosion. HAZARDOUS MATERIALS SHIPPER RESPONSIBILITIES, Listed above are the major responsibilities of HM shippers. Note that our enforcement guidance may be affected by changes to OSHA rules. *Category includes Environmentally Hazardous Substances, Elevated Temperature Material, Hazardous Wastes, and Marine Pollutants. The following is a listing of additional marking requirements: General labeling requirements are contained in 49 CFR subpart E Part 172. DIVISION 2.1 FLAMMABLE GASES (2) Ammonium nitrate, Division 5.1 (oxidizer), UN1942. Water spraying may not be sufficient to control the.
49 CFR Parts 174-177 contain additional modal requirements for transporting hazardous materials by rail, water, air and highway. WebAmmonia is transported by rail, truck, barge and pipeline. A person domiciled outside the United States who offers HM solely from outside the United States. These officials have authority for enforcing municipal building, fire, plumbing, and electrical codes as related to building occupancy permits. Forbidden explosives as defined in 173.54 of this part. The employer is also required to train their hazmat employees on the security plan. HAZARDOUS MATERIALS CARRIER RESPONSIBILITY.
WebThe safe storage of ammonium nitrate relies on the following principles: avoiding contamination of foreign materials, especially if that material is combustible or The written statements must be retained by the manufacturer for at least one year per 49 CFR 178.2(c). This term includes an owner-operator of a motor vehicle which transports hazardous materials in commerce. Engineers want to see if they can make it run on liquid ammonia. For instance, the use of unprotected wooden plank flooring is a violation of this paragraph. See discussion under 1910.109(i)(2)(iii)(b) above. phase pneumatic methods to off-load or otherwise transfer AMMONIUM NITRATE prills. No person may represent, certify, mark, sell or offer a packaging or container as meeting the requirements of the HMR, governing its use in transportation of a hazardous material, whether or not it is used or is intended to be used for transportation of a hazardous material, unless the packaging or container is manufactured, fabricated, marked, maintained, reconditioned, repaired or retested, as appropriate, in accordance with the HMR. Secure .gov websites use HTTPS of Class 3 materials and 50 lbs. For additional information on the registration requirement, you may call 1-800-467-4922 or (202) 366-4109. The Uniformed Services of the United States generally are not subject to the commerce clause of the Constitution. The use of beepers, answering machines and switchboards is not authorized. The word shipper is frequently used by industry in place of the word "offeror." If a vehicle is to be transported aboard a vessel, other than a ferry, and is loaded with hazardous materials, that vehicle must meet the compatibility requirements of Part 176. A person who is employed by a hazmat employer and who in the course of employment directly affects hazardous materials transportation safety. In case of decomposition or fire involving this cargo, the following procedures are suggested: For more information regarding carriage ofAmmonium Nitrate Based Fertilizer, click in the PDF herebelow, Your email address will not be published. Your email address will not be published. An example of an acceptable ventilation rate compliant with 1910.109(i)(2)(iii)(b) includes: Qv = ventilation rate (ft3/min) If you use the number for a service provider such as CHEMTREC you must have a valid contract in force with the service provider.
Application of water is most effective where injection pipes are used to deliver water to hot spots. Compliance with the current requirements for a CDL with a tank vehicle or hazardous materials endorsement provides a driver with the general knowledge and skills necessary to safely operate a commercial motor vehicle with hazardous materials cargo. Webthe theory of relativity musical character breakdown.
Any agency or instrumentality of the Federal government, for the purposes of 49 U.S.C. WebSEA TRANSPORT OF FERTILIZERS The three main potential hazards of relevance to AN-based fertilizers are: Fire Ammonium nitrate itself does not burn,but is an oxidising substance and as such can support combustion. If one of the goods present is a liquid or if the goods may react violently with the ammonium nitrate, store them in separate compounds or at least 5 m or more
U.S. Department of Transportation, Pipeline and Hazardous Materials Safety Administration 3 The IDLH concentration of nitrogen dioxide (one of the principal products of ammonium nitrate decomposition) is 50 parts per million. The requirement for Emergency Response information is contained in 49 CFR, Part 172, Subpart G. The number must be maintained at all times that a shipment is in transit. The 1,001 lbs. The citations included violations related to hazards associated with improper storage of ammonium nitrate under 29 CFR 1910.109(i). Avoidance of storage of combustible substances near fertilizers. Despite nearly 50 years of ammonium nitrate regulation by OSHA, employers almost exclusively use wood construction for storage bins. 
Avoidance of application of heat (e.g. Alternatively, a transport vehicle, freight container, or motor vehicle may be equipped with a visible or audible warning device that activates when the inside temperature of the transport vehicle, freight container, or motor vehicle exceeds the control temperature required for the material. May be marked in a different location. Phone: 202-366-4831