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  • Assessment 2.docx - Question 1 15 out of 20 points A .

    Asphalt is a mixture of solid hydrocarbons whose flashpoint is 450o F (232o C). Exposed to atmospheric oxygen, asphalt is very difficult to ignite; but when asphalt is saturated with liquid oxygen, its rate of combustion increases so markedly that the asphalt may burn spontaneously and explosively.

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  • Why are cryogens hard to handle? - Welcome to QRG

    Why are cryogens hard to handle? . Liquid oxygen (LOX) combines with most organic material to form explosive compounds. There have been accidents where liquid oxygen was spilled onto asphalt which caused an explosion when a truck was driven over the spill. The small amount of heat and pressure caused by the tire was enough to trigger an .

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  • 1910.104 - Oxygen. | Occupational Safety and Health .

    Where oxygen is stored as a liquid, noncombustible surfacing shall be provided in an area in which any leakage of liquid oxygen might fall during operation of the system and filling of a storage container. For purposes of this paragraph, asphaltic or bituminous paving is considered to be combustible. 1910.104(b)(2)(iv)

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  • Cryogen Safety » Environmental Health & Safety .

    Do not permit liquid oxygen or oxygen-enriched air to come in contact with organic materials or flammable or combustible substances of any kind. Some of the organic materials that can react violently with oxygen when ignited by a spark or even a mechanical shock are oil, grease, asphalt, kerosene, cloth, tar, and dirt that may contain oil or .

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  • Oil and Oxygen Don't mix - YouTube

    Mar 12, 2014 · A small amount of grease is applied to the bottom of the drop weight. The combination of Oil, liquid oxygen, and pressure is highly reactive.

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  • TIL liquid oxygen spilled on asphalt creates a powerful .

    Also, any open container of liquid nitrogen will collect liquid oxygen at the bottom if it is exposed to air. O2 liquefies at a higher temperature than N2, and is denser, so the cold surface of the nitrogen distills O2 our of the air, which then sinks to the bottom of the vessel.

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  • Bulk Oxygen Storage | Fire Codes | Forum - ICC - iccsafe

    Dec 07, 2004 · (B) Oxidizing gases, such as oxygen and nitrous oxide, shall not be stored with any flammable gas, liquid or vapor. (C) Oxidizng gases, such as oxygen and nitrous oxide, shall be separated from combustibles or materials by one of the following: (1) A minimum distance of 6.1m (20 ft).

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  • Asphalt Transportation | Cactus Transport | Phoenix, AZ .

    CT Logistics LLC specializes in compressed gases, including but not limited to hydrogen, helium, nitrogen and oxygen, LP gases, sodium hypochlorite, and liquid asphalt petroleum products. For an asphalt construction transport company you can trust, contact Cactus Transport by Cactus Asphalt .

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  • What is Liquid Oxygen? - iBuzzle

    Because of its cryogenic characteristic, if liquid oxygen comes in contact with anything it becomes very brittle. It is also a powerful oxidizer, so organic matter burns rapidly and energetically in liquid oxygen. Moreover, when soaked in liquid oxygen they can explode unpredictably if they come into .

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  • How Do I Work Safely with - Cryogenic Liquids : OSH Answers

    How Do I Work Safely with - Cryogenic Liquids. . Do not store liquid oxygen containers on wood, asphalt or oil soaked gravel. When saturated with liquid oxygen, these materials have exploded after an impact as slight as a footstep. Use concrete or clean gravel under storage areas.

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  • List of UN numbers 1901 to 2000 - Wikipedia

    The UN numbers from UN1901 to UN2000 as assigned by the United Nations Committee of Experts on the Transport of Dangerous Goods. UN 1901 to UN 2000

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  • Liq O2 asphalt 1 - YouTube

    Mar 13, 2014 · Liq O2 asphalt 1 PortlandFireTraining. Loading. Unsubscribe from PortlandFireTraining? . Liquid Oxygen (slow motion) - Periodic Table of Videos - Duration: 5:26.

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  • Why Is the Spillage of Liquid Oxygen Upon Asphalt Pavement .

    Apr 24, 2017 · The oxygen cloud accelerates combustion, so a person exposed to liquid oxygen could set her clothes on fire by smoking a cigarette immediately after exposure. If a vehicle drives over asphalt that has been impregnated by liquid oxygen, the impact of the tires on the oxygen-enriched asphalt causes a massive explosion.

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  • PROPELLANTS

    Most liquid chemical rockets use two separate propellants: a fuel and an oxidizer. Typical fuels include kerosene, alcohol, hydrazine and its derivatives, and liquid hydrogen. Many others have been tested and used. Oxidizers include nitric acid, nitrogen tetroxide, liquid oxygen, and liquid fluorine.

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  • oxygen compatibility materials Database References

    Welcome. WHA is pleased to offer free access to the Oxygen-Compatibility Materials Database contained herein. The data provided relates to common testing performed according to both standard and non-standard test methodologies utilized by oxygen system designers and practitioners.

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  • 55 32 COMPRESSED GASES AND CRYOGENIC FLUIDS IN .

    55 32 COMPRESSED GASES AND CRYOGENIC FLUIDS IN PORTABLE AND STATIONARY CONTAINERS, CYLINDERS, AND TANKS Table 9.3.2 Minimum Separation Distances Between Bulk liquid Oxygen Systems and Exposure Hazards Type of EXposure (1) Buildings of Type I and II construction as defined by

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  • Liquid Oxygen Safety: Transporting Liquid Oxygen - Cryofab

    gas coming into contact with asphalt or other combustible material. H) Before Starting Engine Liquid oxygen safety regulations recommend draining all transfer lines and allowing oxygen vapors to disperse before starting engine of vehicle. I) Signs So others comply with liquid oxygen safety, clearly post signs inside and outside the vehicle .

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  • NFPA 704 RATINGS and ID NUMBERS for COMMON .

    NFPA 704 RATINGS and ID NUMBERS for COMMON HAZARDOUS MATERIALS Blue (Health) Red (Fire) Yellow (Reactivity) White UN/NA# Acetone 1 3 0 1090 . Oxygen, Refrigerated liquid 3 0 0 OX 1073 Oxygen, Compressed Gas 0 0 0 OX 1072 Paint, Latex 1 0 0 Paint, Oil based 1 2 0 1263

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  • Liquid oxygen - Air Products and Chemicals, Inc.

    Liquid oxygen is a cryogenic liquid. Cryogenic liquids are liquefied gases that have a normal boiling point below –130°F (–90°C). Liquid oxygen has a boiling point of –297°F (–183°C). Because the temperature difference between the product and the surrounding environment is substantial—even in

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  • Vertical Bitumen/Liquid Oxygen/Chlorine Storage Tank

    Vertical Bitumen Storage Tank Wholesale, Storage Tank Liquid Chlorine Storage Tank, Liquid Chlorine Storage Tank Vertical/horisontal asphalt storage tank for bitumen products Liquid Oxygen Tank, Liquid Nitrogen Storage Tank Cryogenic Tank Liquid Nitrogen Storage Tank Liquid Oxygen Why Is the Spillage of Liquid Oxygen Upon Asphalt Sciencing Chemical Storage Tanks and Accessories .

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  • Asphalt Transportation | Cactus Transport | Phoenix, AZ .

    CT Logistics LLC specializes in compressed gases, including but not limited to hydrogen, helium, nitrogen and oxygen, LP gases, sodium hypochlorite, and liquid asphalt petroleum products. For an asphalt construction transport company you can trust, contact Cactus Transport by Cactus Asphalt .

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  • A nursing home is installing their own bulk oxygen system .

    Jan 31, 2018 · A nursing home is installing their own bulk oxygen system due to their large volume of consumption. OSHA regulation 29 CFR 1910.104(b)(2)(iii) requires owners of bulk oxygen systems to provide noncombustible surfacing in areas where liquid oxygen might leak during operation of the system or during the filling of a storage container.

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  • What is Liquid Oxygen? - iBuzzle

    Because of its cryogenic characteristic, if liquid oxygen comes in contact with anything it becomes very brittle. It is also a powerful oxidizer, so organic matter burns rapidly and energetically in liquid oxygen. Moreover, when soaked in liquid oxygen they can explode unpredictably if they come into .

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  • Liquid Oxygen » Environmental Health & Safety » University .

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  • Why is the spillage of liquid oxygen upon asphalt pavement .

    Why is the spillage of liquid oxygen upon asphalt pavement potentially hazardous Question 1. Why is the spillage of liquid oxygen upon asphalt pavement potentially hazardous? Question 2.The DOT regulation at 49 CFR 174.450 previously stipulated that when fire occurs [.]

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  • Oxygen ENVIRONMENT, SAFETY, HEALTH, AND QUALITY .

    ENVIRONMENT, SAFETY, HEALTH, AND QUALITY DIVISION Chapter 53: Chemical Safety Oxygen . Pure oxygen, liquid oxygen, LOX, molecular oxygen . (liquefied oxygen will react with asphalt). Containers may explode when heated. Ruptured cylinders may rocket. Incompatible with certain metal s (e.g., reaction with aluminum powder will

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  • Liquid Oxygen Transfilling – Keyes Life Safety Compliance

    Jan 22, 2012 · Liquid oxygen is a very dangerous material and the storage and use of liquid oxygen needs to be clearly defined in your hazardous materials management plan. Liquid oxygen by itself is not flammable, but an oxygen enriched atmosphere makes all .

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  • Oregon HazMat Crews Handle Massive Liquid Oxygen Spill

    Mar 06, 2003 · Crews shut down I-205 early Thursday after a semi truck overturned at the Columbia Blvd. overpass, spilling hazardous liquid oxygen onto the asphalt and transforming the roadway into a .

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  • Will liquid oxygen ignite, burn or combust from an .

    Apr 15, 2007 · Liquid oxygen is just oxygen, so there's nothing for oxygen to bind to, except oxygen which it is already bound to. As such there's no risk of a chain chemical reaction releasing energy - heat. If however the tank was punctured and something flammable left nearby then the liquid oxygen could easily caust a fire with a spark.

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  • Safety Precautions for Liquid Oxygen Delivery in Vans or .

    When vessels are filled outside of vehicle, precautions should be taken to avoid any liquid or gas coming into contact with asphalt or other combustible material. H) Before Starting Engine. Liquid oxygen safety regulations recommend draining all transfer lines and allowing oxygen vapors to disperse before starting engine of vehicle. I) Signs

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  • Liquid Oxygen Safety: Transporting Liquid Oxygen - Cryofab

    gas coming into contact with asphalt or other combustible material. H) Before Starting Engine Liquid oxygen safety regulations recommend draining all transfer lines and allowing oxygen vapors to disperse before starting engine of vehicle. I) Signs So others comply with liquid oxygen safety, clearly post signs inside and outside the vehicle .

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  • Asphalt Safety

    Asphalt Safety Introduction Asphalt is a strong adhesive used for road paving, roofing tar, roll-roofing, roofing felt, shingles, pipe covering, floor tile, waterproofing, and many other products and processes. Asphalt is a dark brown or black substance derived from crude oil. It may be a solid, a semi-solid, or a liquid.

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  • Effect of Oxygen Pressure on Asphalt Oxidation Kinetics .

    The oxidation of asphalt is a major cause of pavement failure. At a given temperature and pressure, the asphalt oxidizes in two stages: (1) a rapid-rate period followed by (2) a long period with constant oxidation rate. The degree of oxidation that occurs in the constant-oxidation region is asphalt-dependent and varies with oxygen pressure and with temperature.

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  • NASA TECHNICAL NASA MEMORANDUM

    spilled liquid oxygen to adjacent combustible material." Several individuals with the oxygen or associated industries were contacted by telephone concerning reports of accidents involving LO2 and asphalt. The following are summaries of these contacts. 1. L. G. Matthews, Union Carbide Corporation, Linde Division, Tarrytown,

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  • Tanker Trailers For Sale - Commercial Truck Trader

    Tanker Trailers For Sale. View our entire inventory of New Or Used Tanker Trailers, Narrow down your search by make, model, or class. CommercialTruckTrader always has the largest selection of New Or Used Tanker Trailers for sale anywhere.

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  • About Liquid Oxygen | Sciencing

    Apr 24, 2017 · To produce liquid oxygen, air is compressed and cooled to -196 degrees Celsius. The gases in the air are liquid at this point before the room is heated -183, reverting the nitrogen in the air to gas and leaving only liquid oxygen behind.

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  • Choosing the Right Crack Sealant for the Job | pavemanpro

    Choosing the Right Crack Sealant for the Job. . Cold-applied products include liquid asphalt emulsions and polymer-modified liquid asphalt. Cold applications are mere crack fillers that simply do not provide the bonding and ongoing flexibility of hot applications. Chemically-cured products are relatively new to the market in the form of a .

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  • Safe handling of cryogenic liquids - Air Products & .

    contain oil or grease. If liquid oxygen spills on asphalt or other surfaces contaminated with combustibles, do not walk on or roll equipment over the spill area. Keep sources of ignition away for 30 minutes after all frost or fog has disappeared. Any clothing that has been splashed or soaked with liquid oxygen or exposed to high oxygen concentra-

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  • Choosing the Right Crack Sealant for the Job | pavemanpro

    Choosing the Right Crack Sealant for the Job. . Cold-applied products include liquid asphalt emulsions and polymer-modified liquid asphalt. Cold applications are mere crack fillers that simply do not provide the bonding and ongoing flexibility of hot applications. Chemically-cured products are relatively new to the market in the form of a .

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  • POLY-JET LOX - Low Modulus Joint Sealant - W. R. Meadows

    POLY-JET LOX is not compatible with asphalt and cannot be used in asphaltic concrete pavement or with asphalt-impregnated expansion joint fillers. . requirements of the liquid oxygen test of the U.S. Air Force and is recommended for use in areas that are exposed to liquid oxygen. POLY-JET LOX passes the requirements of NASA-STD 6001.

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