ISO/TS 16976-3:2019
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
Respiratory protective devices — Human factors — Part 3: Physiological responses and limitations of oxygen and limitations of carbon dioxide in the breathing environment
Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users
18-10-2022
English, French
15-03-2019
This document gives:
— a description of the composition of the Earth's atmosphere;
— a description of the physiology of human respiration;
— a survey of the current biomedical literature on the effects of carbon dioxide and oxygen on human physiology;
— examples of environmental circumstances where the partial pressure of oxygen or carbon dioxide can vary from that found at sea level.
This document identifies oxygen and carbon dioxide concentration limit values and the length of time within which they would not be expected to impose physiological distress. To adequately illustrate the effects on human physiology, this document addresses both high altitude exposures where low partial pressures are encountered and underwater diving, which involves conditions with high partial pressures. The use of respirators and various work rates during which RPD can be worn are also included.
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