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산류(Acids)의 인화점과 최소자연발화온도의 신뢰성 고찰
하동명 ( Dong Myeong Ha ) 한국안전학회 2009 한국안전학회지 Vol.24 No.4
The flash point and the AIT(auto-ignition temperature) are the most important combustible properties used to determine the potential for the fire and explosion hazards of flammable material. In order to know the accuracy of data in MSDS(Material Safety Data Sheet), the flash point of n-acids were measured by using Pensky-Martens closed cup tester(ASTM D93), Setaflash closed cup tester(ASTM D3278), Tag open cup tester(ASTM D1310) and Cleveland open cup tester(ASTM D92). Also, the AIT of n-acids were measured by using ASTM E659-78 tester. The measured the flash points and the AIT were compared with literatures and MSDS in KOSHA. The measured the flash points and the AIT were different from those in literatures and MSDS. Therefore, This paper shows that it is needed to investigate the MSDS compatibility of n-acids for the fire safety objectives.
하동명(Dong Myeong Ha),이성진(Sung Jin Lee) 한국가스학회 2009 한국가스학회지 Vol.13 No.4
MSDS 자료의 적정성을 고찰하기 위해 크실렌 이성질체에 대해 Pensky-Martens 밀폐식(ASTM D93), Setaflash 밀폐식(ASTM D3278), Tag 개방식(ASTM D1310), Cleveland 개방식(ASTM D92)장치 등을 이용하여 인화점을 측정하였으며, 또한 최소자연발화온도는 ASTM E659-78장치를 사용하여 측정하고, 문헌값들과 한국산업안전보건공단의 MSDS 자료와 비교하였다. 그 결과, 측정된 인화점과 최소자연발화온도는 이들과 차이를 나타내어 안전의 목적을 위해 연소특성치 고찰이 필요함을 알 수 있었다. In order to investigate the compatibility of data in MSDS(Material Safety Data Sheet), the flash point of xylene isomer was measured by using Pensky-Martens closed cup (ASTM D93), Setaflash closed cup(ASTM D3278), Tag open cup(ASTM D1310), and Cleveland open cup (ASTM D92) testers. Also, the AITs(autoignition temperatures) of xylene isomers were measured by using ASTM E659-78 tester. The measured the flash points and the AITs were compared with literatures and MSDS in KOSHA(Korea Occupational Safety and Health Agency). The measured the flash points and the AITs were different from those in literatures and MSDS. As a result, this paper is shown that it is needed to investigate combustion characteristics of xylene isomer for the fire safety objectives.
Setaflash 장치를 이용한 산류와 케톤류의 폭발상한계 예측
하동명 한국화재소방학회 2011 한국화재소방학회논문지 Vol.25 No.2
Explosion limit and flash point are the major combustion properties used to determine the fire and explosion hazards of the flammable substances. In this study, in order to predict upper explosion limits (UEL) for acids and ketones, the upper flash point of these were measured under the VLE (vaporliquid equilibrium) state by using Setaflash closed cup tester (ASTM D3278). The UELs calculated by Antoine equation by using the experimental upper flash point are usually lower than the several reported UELs. From the given results, using the proposed experimental and predicted method, it is possible to research the upper explosion limits of the other flammable substances. 폭발한계와 인화점은 가연성물질의 화재 및 폭발의 위험성을 결정하는데 중요한 연소특성치이다. 본 연구에서는 산류와 케톤류의 폭발상한계를 예측하기 위해서, 평형상태에서 인화점을 측정하는 Setaflash 밀폐식 장치(ASTM D3278)를 사용하여 이들의 상부인화점을 측정하였다. 측정된 상부인화점을 이용하여Antoine 식에 의한 계산된 폭발상한계는 기존의 문헌값들보다 약간 낮게 나타났다. 본 연구에서 제시한실험 및 예측 방법을 이용하여 다른 가연성물질의 폭발상한계 예측이 가능해 졌다.
하동명,이성진 한국화학공학회 2011 Korean Journal of Chemical Engineering Vol.28 No.5
The flash point is one of the most important physical properties used to determine the potential for fire and explosion hazards of industrial materials. The purpose of this study was to measure and predict the lower flash points for the binary mixtures to aid in evaluating the safety of flammable liquid mixtures. The lower flash points for the flammable binary systems, n-hexanol+propionic acid, n-butyric acid+m-xylene and n-pentanol+n-butanol, were measured by Setaflash closed cup tester. The experimentally derived data were correlated with the Wilson and UNIQUAC (UNIversal QUuasi Chemical) equations using the binary interaction parameters. Both equations correlated with a good accuracy.
노말알칸류와 방향족탄화수소류의 상부인화점 측정에 의한 폭발상한계의 예측
하동명 한국안전학회 2011 한국안전학회지 Vol.26 No.4
Explosion limit and flash point are the major combustion properties used to determine the fire and explosion hazards of the flammable substances. In this study, in order to predict upper explosion limits(UELs), the upper flash point of n-alkanes and aromatic compounds were measured under the VLE(vapor-liquid equilibrium) state by using Setaflash closed cup tester(ASTM D3278). The UELs calculated by Antoine equation and chemical stoichiometric coefficient tusing the experimental upper flash point were compared with the several reported UELs. From the given results, using the proposed experimental and predicted method, it is possible to research the upper explosion limits of the other flammable substances.