Nitrogen Asphyxiation Hazards and Safety Tips
This safety moment highlights the dangers of nitrogen asphyxiation through a tragic incident and provides essential safety tips to prevent such accidents. It emphasizes the importance of proper ventilation in confined spaces, awareness of oxygen levels, and handling precautions for compressed gases.
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Safety Moment ASPHYXIATION HAZARDS
Safety Moment 1 L of N2 (l) = 0.808 kg = 28.8 mol PV = nRT ~ 700 L gas!
Safety Moment Ake-Salvacion was found crumpled at the bottom of the machine about the size of a phone booth. [She] had texted a friend about a possible nitrogen leak in the machine "Breathing air with this low level of oxygen can quickly result in unconsciousness and then death," the coroner's office said. Referring to the deceased, Professor Hastie said: "This was a person who has worked daily with liquid nitrogen for years. https://www.telegraph.co.uk/news/worldnews/northamerica/usa/11987722/Coroner-finds-woman-who-died-trapped-inside-cryotherapy-chamber-suffocated.html https://www.nbcnews.com/news/us-news/nevada-spa-worker-suffocated-cryochamber-coroner-rules-n461111 http://news.bbc.co.uk/2/hi/uk_news/scotland/484813.stm
Safety Moment Dangers o Most gases are colorless and odorless o Make sure small spaces are well ventilated o Most people become unconscious at <10% O2 o Never take an elevator with full tanks of condensed gases. o Never transport compressed cylinders without caps. oDon t assume other know what they are doing
