密度(20℃)，ρ/（g/mL）……………………………………...0.887～0.889
不挥发物，w/%..........................................................................≤0.0015
透过率
250nm……………………………....…………………………….............≥52%
260nm...........................................................................................≥70%
270nm............................................................................................≥82%
280nm............................................................................................≥89%
290nm............................................................................................≥92%
300nm............................................................................................≥95%
310nm............................................................................................≥97%
320nm...........................................................................................≥100%