ISO/TS 16976-2-Respiratory Protective Devices-Human Factors- Part 2: Anthropometrics. ISO/CD 16975-Respiratory Protective Devices-Selection, Use and Maintenance. ISO/CD TR 16974-Respiratory Protective Devices-Marking and Information. ISO/DIS 16972-Respiratory Protective Devices-Terms, Definitions, Graphical Symbols and Units of Measurement. ISO/CD 16900-9-Respiratory Protective Devices-Methods of Test and Test Equipment-Part 9: Carbon Dioxide Content of the Inhaled Air (dead space). ISO/DIS 16900-4-Respiratory Protective Devices-Methods of Test and Test Equipment-Part 4: Determination of Gas Filter Capacity. ISO/DIS 16900-3-Respiratory Protective Devices-Methods of Test and Test Equipment-Part 3: Determination of Particle Filter Penetration. ISO/DIS 16900-2-Respiratory Protective Devices-Methods of Test and Test Equipment-Part 2: Determination of Breathing Resistance. ISO/DIS 16900-1-Respiratory Protective Devices-Methods of Test and Test Equipment-Part 1: Determination of Inward Leakage. They should be used when it is necessary to enter a highly contaminated environment to rescue persons, for example, from RDD incidents or nuclear power plant accidents. Such devices enable radiation response and decontamination workers to enter a contaminated or oxygen-deficient environment, up to the limits of the respirator.
In RDD incidents in which radioactive contamination is associated with fire and dangerous chemical fumes from burning metals and plastics, use of self-contained breathing apparatuses should be considered. In these situations use of self-contained breathing apparatuses should be considered. 18 When associated with a fire, metallic plutonium may burn, producing radioactive plutonium oxide particles and serious inhalation and wound deposition hazards. Detonation of high explosives in nuclear weapons will cause a major radiological threat-the release of plutonium-239.
In nuclear weapons accidents or terrorist incidents, most nuclear weapons will contain high explosives in varying amounts-even as much as hundreds of pounds. The device providing the greatest factor of safety for a particular radiation incident should be used. However, short exposures to these gases are not considered medically significant. Radioisotopes such as radon and tritium gas will pass through these filters. Most air-purified respirators (i.e., protective masks) afford excellent protection from inhalation of radioactive material. There are two types of respiratory protective devices: air-purified respirators, which remove contaminants from breathing air by filtering or chemical absorption, and air-supplied respirators, which provide clean air from an outside source or from a tank. Alexander, in Ciottone's Disaster Medicine (Second Edition), 2016 Respiratory Protective Devices
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