国产精品久久一区一区_中文字幕日韩高清_91调教视频在线播放_视频二区国产日韩欧美另类_亚洲αv在线视频_国自产拍91中文在线观看_欧美另类自慰男_日韩无摭挡一级无码视频_3D欧美真人性动漫在线观看_亚洲人成网站免费播放

According to the information query of national standard information public service platform, the national standard of perfluorohexanone fire extinguishing agent is in the drafting stage. The release date of the project is May 9, 2020, and the project period is 2 years.

Perfluorohexanone fire extinguishing agent has been used for nearly 20 years abroad. In 2001, 3M company of the United States first launched commercial perfluorohexanone fire extinguishing agent novc 1230, which has obtained the UL and FM certification of the United States. Perfluorohexanone fire extinguishing agent was included as clean gas fire extinguishing agent by fpa2001 edition standard, and later included in ISO 14520 standard.

Many domestic fluorine chemical enterprises have independently developed perfluorohexanone fire extinguishing agent products. The raw materials, reaction routes, production process and product performance of different enterprises are not the same, and there is no unified national and industrial standard. Therefore, to formulate a unified and strong national standard for perfluorohexanone fire extinguishing agent is conducive to standardizing product production and quality control, improving product quality and improving product quality Products play their due role in actual fire fighting to ensure the safety of people's lives and property.

Perfluorohexanone (dodecafluoro-2-methyl-3-pentanone) as an efficient and clean gas fire extinguishing agent has been accepted, recognized and widely used in the international fire protection industry. It has the characteristics of low concentration, high efficiency, high safety factor, non-conductive, no residue and so on. It is suitable for fire places where other fire extinguishing agents are not suitable for extinguishing and can not have large secondary pollution after extinguishing, such as in big data Heart, computer room, power distribution room, archives of cultural relics, engine rooms of aviation and ships, etc.

In addition, perfluorohexanone has good performance advantages. With the increasing demand for environmental protection, perfluorohexanone fire extinguishing agent with good environmental performance will be used more and more widely. With the increase of production and the decrease of price in the future, it is bound to cause certain market impact on other fire extinguishing systems.