Adding halogens (fluorine, chlorine, bromine, iodine) in plastics and other polymer products to improve ignition, its advantages are: high flash point than ordinary polymer material, ignition at about 300 ℃. When burned, it will emit halogenated gases (fluorine, chlorine, bromine, iodine), rapid absorption of oxygen, so that the fire is out. But its disadvantage is the high concentration of chlorine released when the visibility dropped due to not recognize the escape route will lead to, at the same time highly toxic chlorine gas, affect the respiratory system, in addition, halogen polymer combustion released halogen gas contained in When combined with water vapor, it will produce corrosive gases (hydrogen halide), for some equipment and buildings caused by corrosion. PBB, PBDE, TBBPA and other brominated flame retardants are currently using more flame retardant, mainly used in electrical and electronic industry, comprising: a circuit board, computer, fuel cells, televisions and printers. These halogen-containing flame retardant material to produce dioxins when burned, and can exist in the environment for many years, even a lifetime accumulated in the organism, can not be discharged. Therefore, many international companies are actively promoting the complete abolition of halogen-containing materials, such as prohibiting the use of halogenated flame retardants in their products and so on. At present, for halogen-free requirements, different products have different limits: If no halogenated wire and cable wherein the halogen indicators: All values ??halogen ≦ 50PPM (according to regulations PREN 14582); generating hydrogen halide content of post-combustion <100PPM ( According to regulations EN 5067-2-1); PH value of water soluble hydrogen halide produced after combustion ≧ 4.3 (slightly acidic) (according to regulations EN-5 0267-2-2); products after combustion in a sealed container Through beam of light transmittance rate ≧ 60% (according to regulations EN-50268-2). Halogen-free requirements: bromine, chlorine content of less than 900ppm, (bromine + chlorine) is less than 1500ppm. Supply Dionex instrument ICS-900, halogen tester, halogen-free Detector Features: To meet the different areas, different analytical needs, to meet the user's daily use and market penetration, Dionex Corporation in 2003 officially launched a concentrated a large number of high-tech patented technology ICS90 ion chromatography, this model has a very high performance / price ratio. World-leading suppressor technology first developed in 1975 Dionex Corporation and produced a suppressor, thus creating a modern ion chromatography era. Today Dionex Corporation has developed a patented technology suppressor six generations, and has been leading the world's highest level suppressor technology. Diane is the only available shade / cation suppressors two films at the same time manufacturers. Its production of automatic regeneration micro-membrane suppressors inhibit high capacity, without the use of a peristaltic pump, balance fast, anti-pollution, compact structure, small size, good repeatability, zero maintenance, simple operation and low price. The world's leading analytical column technology Diane is the only company to use only their own R & D and production companies in the world ionic columns. Dionex ion chromatography column having a column efficiency, column capacity and high ion chromatograph ic, long life, good compatibility and organic pollution, and other characteristics, can be pH: used within the range 0-14. 100% compatible organic solvent can greatly improve the solubility of the sample / selectivity / stain resistance, to expand the scope of application to extend the service life (3-5 times the normal analytical column). Dionex unique high capacity analytical column ion chromatography 883, 100 times its high exchange capacity than regular column, which greatly improved the ability to analyze a big difference in retention characteristics of complex samples / components in the sample, further extending the life of the column (which is 2-4 times the normal analytical column) ion chromatograph, improve quantitative and bulky weak retention component injection ppb level samples for analysis. Dionex Corporation ICS90 can use a variety of analytical column, commonly used analytical column is AS9-HC ion chromatograph pic, AS14A and CS12A, CS16. Wherein the ion exchange capacity of the column functional groups graft-agglomerated CS16 analytical column reaching a high cation 8400μmol, is 50-100 times that of other manufacturers of similar analytical column column capacity of the United States Dionex ion chromatography, ion chromatography, halogen tester made Shenzhen Huayi Technology Co., Ltd. to provide universal. Shenzhen Huayi Technology Co., Ltd. Four Seas (huayi-universal.com) (www.huayi-univerasl.com) strong, credible, analytical instruments in Shenzhen, Guangdong and other industries has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Huayi into the brilliant universal and you work for a better future!