Any other atmospheric condition that is immediately dangerous to life or health. For air contaminants for which OSHA has not determined a dose or permissible exposure limit, other sources of information, such as Material Safety Data Sheets that comply with the Hazard Communication Standard, section 1910.1200 of this Part, published information, and internal documents can provide guidance in establishing acceptable atmospheric conditions. Oxygen deficient atmosphere means an atmosphere containing less than 19.5 percent oxygen by volume. Oxygen enriched atmosphere means an atmosphere containing more than 23.5 percent oxygen by volume. Testing means the process by which the hazards that may confront entrants of a permit space are identified and evaluated.
Testing includes specifying the tests that are to be performed in the permit space.
Testing enables employers both to devise and implement adequate control measures for the protection of authorized entrants and to determine if acceptable entry conditions are present immediately prior to, and during, entry. When identified departments shall inform exposed employees, by posting danger signs or by any other equally effective means, of the existence and location of and the danger posed by the permit spaces. Signs can be obtained from OEHS at 828-7899. Departments who wish to undertake developing the intensive training, equipment purchases, and permit process to permit entry into confined spaces must contact the OEHS Occupational Safety office at 828-7899 in order to assure the department will be able to meet all applicable OSHA standards for such entry. The determinations and supporting data required by this section are documented by and are made available to each employee who enters the space under the terms of this section or to that employee's authorized representative.