主管：中华人民共和国应急管理部
主办：应急管理部天津消防研究所
ISSN 1009-0029  CN 12-1311/TU
消防科学与技术

消防科学与技术 ›› 2021, Vol. 40 ›› Issue (12): 1718-1722.

• • 上一篇    下一篇

易燃液体危险品闭杯闪点与持续燃烧试验探讨

岳大磊，邓良健，杨 蓓，彭速标   

  1. （广州海关技术中心 国家化学品分类鉴别与评估重点实验室，广东 广州 510623）
  • 出版日期:2021-12-15 发布日期:2021-12-15
  • 通讯作者: 邓良健（1991-），男，广州海关技术中心国家化学品分类鉴别与评估重点实验室工程师。
  • 作者简介:岳大磊（1980-），男，安徽凤台人，广州海关技术中心国家化学品分类鉴别与评估重点实验室，高级工程师，硕士，长期从事进出口化学品检验技术研究和管理研究工作，广东省广州市天河区珠江新城花城大道66号广州海关南办公区，510623。
  • 基金资助:
    海关总署科研项目（2020HK236）

Study on closed-cup flash point and sustained combustibility test of flammable dangerous liquids

YUE Da-lei, DENG Liang-jian, YANG Bei, PENG Su-biao   

  1. （Guangzhou Customs Technology Center， State Key Classification and Evaluation Laboratory of Chemicals，Guangdong Guangzhou 510623，China）
  • Online:2021-12-15 Published:2021-12-15

摘要： 闭杯闪点是评估液体易燃危险性的重要指标之一，持续燃烧试验则用于测定物质在试验条件下加热并暴露于火焰时是否持续燃烧，通过实验探究不同测试标准下易燃液体危险品闭杯闪点低于35 ℃、55 ℃≤闭杯闪点＜63 ℃的特点及其持续燃烧情况。结果表明：存在闭杯闪点低于35 ℃但被定为不持续燃烧的液体，首次提出能否将此类液体划分为非易燃液体；55 ℃≤闭杯闪点＜63 ℃的液体在某一适合测定方法条件下闭杯闪点低于60 ℃且被测定为持续燃烧的液体，建议划分为易燃液体。此探讨将为研究易燃液体危险性评估及分类提供参考。

关键词: 消防, 闭杯闪点, 燃烧试验, 非易燃液体, 易燃液体

Abstract: Closed-cup flash point is one of the important index to assess the flammable hazard of liquids, and the sustained combustibility test is used to determine if a substance sustains combustion when heated under the test conditions and exposed to a flame. By experiments the features of flammable dangerous liquids with closed-cup flash point below 35 ℃ and 55 ℃≤closed-cup flash point < 63 ℃ under different test standards and their sustained combustibility were explored. The results showed that: when the closed-cup flash point of liquid is below 35 ℃， the substance is essessed as not sustaining combustion,and it is proposed for the first time that the liquids can be classified as non-flammable liquids; The liquid is recommended to be classified as flammable liquid if the closed-cup flash point is 55 ℃≤closed-cup flash point < 63 ℃ and the closed-cup flash point is lower than 60 ℃ with a suitable testing method as well as the substance is essessed as sustaining combustion. This study will provide an important reference for further study on the test methods of risk assessment and classification for flammable liquids。

Key words: fire fighting, closed-cup flash point, combustibility test, non-flammable liquids, flammable liquids