Results of a Round-Robin Test for the Draft International Standard on FT-IR Gas Analysis of Fire Effluents from a Cone Calorimeter

Choi, Jung-Min; Park, Kye-Won; Jeong, Jae-Gun

doi:2019.33.3.1

Fire Sci. Eng. > Volume 33(3); 2019 > Article

Research Paper

Fire Science and Engineering 2019;33(3):1-8.
DOI: https://doi.org/10.7731/KIFSE.2019.33.3.001 Published online June 30, 2019.

콘칼로리미터 연소가스 FT-IR 분석을 위한 국제표준 초안의 비교시험 결과분석

최정민¹, 박계원², 정재군³

¹한국화재보험협회 부설 방재시험연구원 화재환경시스템팀 선임연구원
²한국화재보험협회 부설 방재시험연구원 화재환경시스템팀 책임연구원
³한국화재보험협회 부설 방재시험연구원 화재환경시스템팀 수석연구원

Results of a Round-Robin Test for the Draft International Standard on FT-IR Gas Analysis of Fire Effluents from a Cone Calorimeter

Jung-Min Choi¹, Kye-Won Park², Jae-Gun Jeong³

¹Senior Researcher, Fire Safety & Building Environment Research Team, Fire Insurers Laboratories of Korea
²Senior Researcher, Fire Safety & Building Environment Research Team, Fire Insurers Laboratories of Korea
³Principal Researcher, Fire Safety & Building Environment Research Team, Fire Insurers Laboratories of Korea

Correspondence: Jung-Min Choi, Tel: +82-31-887-6769, Fax: +82-31-887-6680,
Email: jmchoi@kfpa.or.kr

Received: 5 March 2019 • Revised: 15 April 2019 • Accepted: 18 April 2019

요약

ISO TC 92에서는 콘칼로리미터의 연소가스를 FT-IR 방식의 가스분석기로 분석하기 위한 표준을 개발하고 있다. 2018년에는 표준 초안(WD 21397)의 절차에 따라 6개 기관이 참여하여 표준 초안의 반복성 및 재현성을 평가하였다. 시험대상 시료는 polymethyl methacrylate (PMMA), 경질 폴리우레탄 보드 및 PVC 장판이었고 콘칼로리미터 시험결과 중 착화시간(s), 최대 열방출률(kW·m^-2), 총 방출열량(MJ·m^-2) 및 유효연소열(MJ·m^-2·kg^-1)을, 그리고 FT-IR 가스분석결과 중 독성가스의 최대 농도(μL·L^-1), 가스 발생량(g) 및 가스 수율(g·g^-1)을 ISO 5725-2에 따라 통계 분석하여 정밀도를 평가하였다. 이상치(outlier)는 발견되지 않았으며 콘칼로리미터 시험의 반복성(sr/m)은 1.5%, 재현성(sR/m)은 9.8%로 나타났고 FT-IR 가스분석의 반복성은 12.9%, 재현성은 27.9%로 나타났다.

Abstract

The international standard for FT-IR gas analysis of fire effluents in ISO 5660-1 cone calorimeter has been being developed in ISO TC 92. A comparison of the round-robin test of WD 21397 was conducted with six participating laboratories in 2018. The test specimens were PMMA, rigid PU foam board, and PVC flooring. The measurement quantities were the time-to-ignition, peak heat release rate, total heat release, and effective heat of combustion for a cone calorimeter test and peak gas concentration, gas generation, and gas yield for FT-IR gas analysis. No outliers were identified. For the cone calorimeter quantities, the repeatability and reproducibility were 1.5% and 9.8%, respectively. For FT-IR gas analysis, the repeatability and reproducibility was 12.9% and 27.9%, respectively.

Key Words: Round-robin, Repeatability, Reproducibility, FT-IR, Cone calorimeter