Thermal oxidation stability method is 175 ℃, 72 hours, and fully considered the method of conducting oil oxidation factors influence the design. But the only drawback is not enough heat and time is short, the project is also not comprehensive enough to observe and assess the project also allowed less than 50mg / 100g of sediment existence synthetic HTF manufacturers, we believe that this sediment should not be allowed to exist, and There are more units are not tested this indicator synthetic heat transfer oil, simply stated, "This product is limited to use closed systems" in the conclusions of the examination, that is the HTF is sealed under nitrogen conditions use, if the user does not question the use of nitrogen sealed and production company HTF HTF no significant relationship between the goods there, but generally the responsibility of the user. Carbon residue qualified new HTF not really an indication of future increase in the use of certain less carbon residue, after the national "bench" tested and thermal oil, carbon residue can not explain the increase is small, but can not explain the formation of carbon residue state HTF wholesale synthetic carbon residue that is formed is easily accumulate to form larger carbon residue, resulting in partial or total blockage. More than 95 percent now commercially HTF belong prone type synthetic heat transfer oil residues and offer oxidation of carbon residue, including foreign brands, and there are new carbon residue HTF large proportion of those produced by the accumulation can be formed between the type of residual carbon chain reaction, generating larger and more carbon residue and sludge matrix, thus affecting the heat, even clogged pipes. Synthetic heat transfer oil wholesale | Synthetic HTF | Fengqiu County Taihang Chemical Co., Ltd. is provided by Fengqiu County Taihang Chemical Co., Ltd. Fengqiu County Taihang Chemical Co., Ltd. (www.hndaoreyou.com) strong, credible, in Xinxiang of fuel oil and other industries has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Fengqiu County Taihang Chemical Co., Ltd., and you hand into the brilliant, for a better future!