树脂沥青 :软化点50-60,灰分小于等于0.4,甲苯不溶物26-34,喹啉不溶物6-12,结焦值大于等于0.38,树脂含量大于等于0.16,挥发份55-65,水分小于等于0.03,含硫量小于等于0.004