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由石油大学 (华东 )重质油研究所起草的 GB/T 45 0 8- 1999《沥青延度测定法》2 0 0 0年 6月 1日实施。该标准自实施之日起代替 GB/T45 0 8- 84。该标准等效采用美国试验与材料协会标准 ASTM D113- 86 (1992 )《沥青延度测定法》。该标准与 GB/ T45 0 8- 84的主要差异是 :GB/ T
GB / T 45 0 8- 1999 “Determination of asphalt ductility” drafted by the University of Petroleum (East China) Heavy Oil Research Institute was implemented on June 1, 2000. The standard from the date of implementation instead of GB / T45 0 8-84. The standard equivalent to the American Society for Testing and Materials ASTM D113-86 (1992) “Determination of asphalt ductility.” The main difference between this standard and GB / T45 0 8-84 is: GB / T