The detection of carbon monoxide gas can be divided into iwo fields. First and most important of these, due to the fact that it is designed for preventive purposes, is the carbon monoxide indicator which utilizes the so-called hopcalite cell principle, this substance simply being a catalyst for carbon monoxide.
The second field of carbon monoxide detection depends upon sampling the blood of an individual suspected of having been subjected to carbon monoxide poisoning. This device is the so-called pyrotannic detector. This process can be used for living pilots who exhibit sus-Picious symptoms, or after death, with equal facility, The most significant symptom of mild carbeen monoxide poisoning is a feeling of tightness across the forehead, usually accompanied by a slight headache. As the danger line is approached. there is a decided loss of muscular power, vomiting convulsions and coma, At this stage the pulse gradually weakens and the respiratory rate slows until there is a complete respiratory failure and death.
The bureau recommends to the aviation industry that bureau insections for carbon monoxide be supplemented by inspections at fs quent intervals conducted by manufacturers and operating companies. It is strongly recommended that the importance of this subject be immediately recognized by the industry.
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