Oxygen enriched atmospheres

NFPA 53 Recommended Practice on Materials, Equipment, and Systems Used in Oxygen-Enriched Atmospheres. National Fire Protection Association, Quincy, MA. 

After delivery, the driver disconnected the transfer lines, stepped into the cab of the truck, and began to maneuver the truck in the yard of the hospital. The truck tank ruptured, and the remaining contents of the tank were spewed into the area around the truck. Vigorously burning fires started in the oxygen-enriched atmosphere. 

Other media in which titanium is subject to pyrophoricity are anhydrous liquid or gaseous chlorine , liquid bromine, hot gaseous fluorine, or oxygen-enriched atmospheres at moderately low pressures. 

Addition of 30% peroxide and sulfuric acid to 2-methylpyridine and iron(II) sulfate caused a sudden exotherm, followed by a vapour phase explosion and ignition. Lack of stirring is thought to have caused local overheating, vaporisation of the base and its ignition in the possibly oxygen-enriched atmosphere. 

Standard on Fire Protection for Laboratories Using Chemicals Recommended Practice on Materials, Equipment and Systems Used in Oxygen-Enriched Atmospheres Standard for the Storage, Use, and Handling of Compressed Gases and Cryogenic Fluids in Portable and Stationary Containers, Cylinders, and Tanks Liquefied Petroleum Gas Code... 

Oxygen electrodes, 3 408 standard potential, 3 413t Oxygen-enriched atmospheres, silver in safety of, 22 661... 

MSDS data are likely to pertain only to ambient and fire-exposure conditions. If the material is handled under different or unusual conditions, such as at high pressure or in an oxygen-enriched atmosphere, the data may be useless or misleading. 

ASTM, STP 1319 (Flammability and Sensitivity of Materials in Oxygen-Enriched Atmospheres), 1997... 

In the oxidizing reaction vessel the partially reacted concentrate from the first stage is completely reacted in an oxygen enriched atmosphere. The iron is produced as beta-ferric hydroxide or hematite (Fe203> depending on the reaction temperature. 

Commercial methods of producing copper arsenate consist in heating copper arsenite at 600° to 700° C. in an oxygen-enriched atmosphere,3 or in heating basic copper chloride with an arsenate or arsenic acid.4... 

Spilda, I., Kosik, M., and Blazej, A., The mass burning rate of flame-retarded polypropylene in an oxygen-enriched atmosphere, J. Appl. Polym. Sci., 31, 589, 1986. 

Most Cone Calorimeters include instrumentation for measuring light extinction in the exhaust duct, using a laser light source, described in ASTM E 1354 and ISO 5660-2 (Section 14.3.5.3.2). Instrumentation to measure concentrations of soot, carbon dioxide, carbon monoxide, and other gases are commonly added. Some laboratories have used a modified version of the standard apparatus to conduct studies in vitiated or oxygen enriched atmospheres.43 50... 

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