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인화성액체를 촉진제로 사용한 방화화재의 감식기법에 관한 연구

Arson Fire Analysis Involving the Use of Flammable Liquilds as Accelerants

  • 최민기 (가천대학교 대학원 소방방재공학과) ;
  • 한동훈 (중앙소방학교 소방과학연구실) ;
  • 최돈묵 (가천대학교 설비프랜트.소방방재공학과)
  • Choi, Min-Ki (Dept. of Fire & Disaster Protection Engineering Graduate School, Gachon Univ.) ;
  • Han, Dong-Hun (Fire Research Lab. National Fire Service Academy) ;
  • Choi, Don-Mook (Dept. of Fire & Disaster Protection Engineering, Gachon Univ.)
  • 투고 : 2014.07.21
  • 심사 : 2014.08.15
  • 발행 : 2014.08.31

초록

본 연구에서는 연소잔류물에 남아있는 미세한 인화성액체의 성분을 검출하기 위해 가스검지관, Gas Chromatograph/Mass Spectrometer (GC/MS), 열분해분석장비를 활용하였다. 일반적으로 연소했을 경우와 인화성액체를 첨가하여 연소된 경우의 성분분석결과를 비교하였다. 결과적으로 인화성액체를 첨가하지 않고 연소 후 생성된 화재잔해물에서도 가스검지관이 반응하는 것을 확인할 수 있었다. 일반적인 연소와 열분해를 통해 생성된 화학성분의 차이가 있었으며, 이는 연소 환경의 차이로 인한 것으로 판단된다. 대표적인 석유화학제품인 우드데코타일(PVC) 시료는 인화성액체를 첨가하지 않고 일반적으로 연소시켰을 경우에도 감정인의 정확한 판단을 방해할 수 있는 방해물질인 Toluene, Ethylbenzene, Undecane, Dodecane 등이 검출되는 것을 확인하였다.

Flammable liquids residues in fire debris and pyrolysis products of flammable materials were analyzed by using Gas detecting tube, Gas Chromatograph/Mass Spectrometers (GC/MS), and Pyrolyzer. Comparison studies between chemical components detected in debris fired with and without Flammable liquids were performed. Though Flammable liquids were not present in debris, Gas detecting tube colors were also changed. Chemical components produced from conventional combustions were different from those produced from pyrolysis. Due to the difference of the reaction conditions between combustions and pyrolysis, different chemical products were produced. Petrochemical products of PVC wood-linoleum block could produce ignitable chemicals, such as toluene, ethylbenzene, undecane, and dodecane. So, for better fire investigation more consideration of those chemicals will be porformed.

키워드

참고문헌

  1. T. Y. Hwang and D. M. Choi, "A Study on Experimental Characteristics in Fire Investigation Techniques of Flammable Liquids", Journal of Korean Institute of Fire Science & Engineering, Vol. 26, No. 6, pp. 7-14 (2012). https://doi.org/10.7731/KIFSE.2012.26.6.007
  2. Y. P. Hong, "A Study on the Fire Scene Flammable Liquids Forensic Using GC", Fire Investigation Society of Korea, Vol. 1, No. 1, pp. 126-129 (2009).
  3. NFSA, "Research for fire debris that contains flammable liquids", Fire Research Lab. National Fire Service Academy, pp. 13-17 (2010).
  4. D. H. Han, S. R. Rhee and S. Y. Kim, "Qualitative Analysis of Ignitible Liquid Residues in Extracts from Fire Debris Samples", Fire Science and Engineering, Vol. 25, No. 6, pp. 14-20 (2011).
  5. NFSA, "Research for Fire Debris that Contains Flammable Liquids", Fire Research Lab. National Fire Service Academy, pp. 20-22 (2010).
  6. ASTM, E1618-11, "Standard Test Method for Ignitible Liquid Residues in Extracts from Fire Debris Samples by Gas Chromatography-Mass Spectrometry1".
  7. NFSA, "A Study on the Flammable Liquids Fire Evidence Interfering Substances According to Combustible Materials", pp. 1-2 (2012).

피인용 문헌

  1. A Study on Initial Fuel Expectation Based on Flash Fire Phenomenon vol.18, pp.7, 2018, https://doi.org/10.9798/KOSHAM.2018.18.7.255