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A Study on Carbon Monoxide and Other Gases During the Fire Test (A-class:1st Rating & B-class:1st Rating)

한국 A급, B급 1단위 화재 시험시 발생하는 일산화탄소 등의 정량적 연구

  • Jeong, Incheon (Dept. of Fire and Emergency Management Administration, Oklahoma State University) ;
  • Chung, Yeong-Jin (Dept. of Fire Protection Engineering, Kangwon National University)
  • 정인천 (Oklahoma State University (Fire and Emergency Management Administration), 한국소방산업기술원) ;
  • 정영진 (강원대학교 소방방재공학과)
  • Received : 2013.10.06
  • Accepted : 2013.10.16
  • Published : 2013.10.31

Abstract

This research is to identify how much toxic combustion gases are produced from Korea standardized real fire test (Class A&B) by using Room Corner Tester (RCT) and how much those gases are possibly dangerous to testing personnel by estimating the level of carboxyhemoglobin (% COHb). It is confirmed that testing personnel can be affected as more than 40% COHb from Class A 9th and 10th rating in respiration minute volume (RMV) 2 and from Class A 5th to Class A 10th rating in RMV 3 during the time for initial three minutes. Also, in the case of Class B real fire tests, although it is considered rather safe for the initial 1 minute, testing personnel can be affected as more than 20% COHb from Class B 16th to 20th rating in RMV 3 during total test time. Currently, the Korea standard is only focusing on the protection measures against the heat, but the it is neglecting the protection measures against toxic combustion gases. Therefore, according to this study, it is strongly recommended that testing personnel should wear a self-contained breathing apparatus, or the equivalence depending on the real fire test rating.

한국기준 표준화된 A급 목재 및 B급 유류 화재 시험에서 룸코너시험기(RCT)를 사용하여 연소유독가스의 생성을 정량적으로 알아보고, 시험자들에게 미치는 인체유해성을 확인하였다. 그 결과 A급의 경우 유독가스가 시험자들에 직접적으로 노출되는 초기 3분 동안, 분당호흡량(RMV) 2단계에서 40% 카복시헤모글로빈(COHb)가 넘어가는 경우는 A급 9, 10단위에 해당하며, RMV 3단계에서 A급 5~10 단위까지가 모두 40% COHb을 초과함을 확인하였다. 한편 B급의 경우 유독가스가 시험자에게 직접 노출되는 초기 1분 동안은 A급에 비해 다소 안전하나 총 연소시간에는 RMV 3단계에서 B급 16~20 단위까지가 모두 20% COHb을 초과한 수치가 나옴을 확인하였다. 따라서 이 연구에서는 시험자들은 소화시험의 단위수를 고려하여 자급 호흡보조기나 그와 동일한 기능의 장치를 착용하는 규정을 제안한다.

Keywords

References

  1. R. H. White and M. A. Dietenberger, "Wood Handbook: Wood as an Engineering Material", Ch.17: Fire Safety (1999).
  2. A. Ernst and J. D. Zibrak, "Carbon Monoxide Poisoning", N. Engl. J. Med., Vol. 339, No. 22, pp. 1603-1608 (1998). https://doi.org/10.1056/NEJM199811263392206
  3. S. R. Thom, "Carbon Monoxide Pathophysiology and Treatment", Physiology and Medicine of Hyperbaric Oxygen Therapy. Philadelphia: Saunders Elsevier, pp. 321-347 (2008).
  4. C. L. Beyler, "SFPE Handbook of Fire Protection Engineering", Section2, pp. 114-115. Quincy Massachusetts: National Fire Protection Association (2008).
  5. John Wiley & Sons, Ltd. "Toxicology Update", Journal of Applied Toxicology, Vol. 19, No. 5, pp. 379-386. (1999). https://doi.org/10.1002/(SICI)1099-1263(199909/10)19:5<379::AID-JAT563>3.0.CO;2-8
  6. R. D. Stewart, J. E. Peterson, E. D. Baretta, H. C. Dodd and A. A. Herrmann, "Experimental Human Exposure to High Concentrations of Carbon Monoxide", Archives of Environmental Health, John Wiley & Sons, Ltd. Vol. 26, No. 1, pp. 1-7 (1973). https://doi.org/10.1080/00039896.1973.10666210
  7. D. A. Purser, "A Bioassay Model Fortesting the Incapacitating Effects of Exposure to Combustion Product Atmospheres Using Cynomolgus Monkeys", Journal of Fire Sciences, Vol. 2, No. 1, pp. 20-26 (1984). https://doi.org/10.1177/073490418400200104
  8. B. G. King, "High Concentration-short Time Exposures and Toxicity", Journal of Industrial Hygiene and Toxicology, Vol. 31, No. 6, pp. 365-375 (1949).
  9. U. C. Luft, "Aviation Physiology: the Effects of Altitude in Handbook of Physiology", American Physiology Society. Washington, DC, pp. 1099-1145 (1965).
  10. NEMA (National Emergency Management Agency, Republic of Korea), "Standards of Model Approval and Inspection Technology for Fire-extinguishers" (2012).
  11. KFI (Korea Fire Institute of Industry & Technology, Republic of Korea), "User's Guide for the Room Corner Tester" (2008).
  12. W. D. Walton, "SFPE Handbook of Fire Protection Engineering", Section 3, Quincy Massachusetts: National Fire Protection Association (2008).
  13. Y. J. Chung and M. Spearpoint, "Combustion Properties of Native Korean Wood Species", International Journal on Engineering Performance-Based Fire Codes, Vol. 9, No. 3, pp. 118-125 (2008).
  14. V. Babrauskas and S. J. Grayson, "Heat Release in Fires. Ch.3: Oxygen Consumption Calorimetry", London, Glasgrow, Weinheim, NewYork, Tokyo, Melbourne, Madras: An Imprint of Chapman & Hall (1990).
  15. G. Kimmerle, "Aspects and Methodology for the Evaluation of Toxicological Parameters During Fire Exposure", Journal of Combustion Toxicology, Vol. 1 (1973).
  16. Underwriters Laboratories Inc. "UL 711, Rating and Fire Testing of Fire Extinguishers: Standard for Safety", U.S.A. (2009).