Occupational Safety and Health Standards

Occupational Safety and Health Standards    
      Boiling point means the boiling point of a liquid at a pressure of 14.7 pounds per square inch
absolute (p.s.i.a.) (760 mm.). For the purposes of this section, where an accurate boiling point is
unavailable for the material in question, or for mixtures which do not have a constant boiling point, the
10 percent point of a distillation performed in accordance with the Standard Method of Test for
Distillation of Petroleum Products, ASTM D-86-62, which is incorporated by reference as specified in
§1910.6, may be used as the boiling point of the liquid.
Catastrophic release means a major uncontrolled emission, fire, or explosion, involving one or
more highly hazardous chemicals, that presents serious danger to employees in the workplace.
Facility means the buildings, containers or equipment which contain a process.
Highly hazardous chemical means a substance possessing toxic, reactive, flammable, or explosive
properties and specified by paragraph (a)(1) of this section.
Hot work means work involving electric or gas welding, cutting, brazing, or similar flame or sparkproducing operations.