You might say: every physical and chemical indicators have reached the national standard is good HTF HTF, including heat stable deterioration rate of less than 10%, but in our view this is not quite right or wrong. To assess the quality of one kind HTF, in addition to physical and chemical indicators of the analysis, there should be bench, even simulated use test job. Physical and chemical properties and thermal stability test I will not say here, I would like to highlight some simulated oil boiler after a certain time of operation, changes in the HTF HTF in order to determine the quality of the recommendations, and very reliable. First, the HTF and HTF physical and chemical indicators of the practical effects of no significant relationship, heat oil producers, but can not say whether the HTF would coke, Guangdong heat transfer oil, referred to here is the degree of durability; Second, the detection performance is reflected in HTF: HTF national standard GB23971 two test methods, oil thermal stability test method (GB / T 23800) and GB23971 HTF thermal oxidation stability test method Appendix C ; thermal stability under a nitrogen atmosphere, the maximum temperature test is in relatively good conditions, without considering oxidation, materials, pollution, system and other factors. The vast majority of our oil boiler is not nitrogen; and even sealed under nitrogen deterioration rate of less than 10%, the national standards considered fully qualified, such as conducting oil in the absence of nitrogen seal, and some open The system uses temperature was 210 ℃, heat oil production, as no durable not durable, as a result of oxidation at high temperature and coking affect heat transfer, shortened life expectancy. Therefore, this method can only show stability under ideal conditions at the high temperature from oxidation, it can not have a high correlation indicates HTF in the performance of oxidation in both the heat and suffer. Heat oil manufacturers | Fengqiu County Taihang Chemical (Online) | Guangdong heat transfer oil supplied by Fengqiu County Taihang Chemical Co., Ltd. Fengqiu County Taihang Chemical Co., Ltd (www.hndaoreyou.com) Henan Xinxiang, fuel oil leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In Fengqiu County Taihang Chemical Co., Ltd. leadership with the staff warmly welcome all inquiries negotiations to create Fengqiu County Taihang Chemical Co., a better future.