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The petroleum spirit is an aliphatic solvent hexane having a maximum aromatics content of
) e! M; [: W$ F$ t4 _0,1 % by volume, a kauri-butanol value of 29, an initial boiling point of approximately 65 °C, a" P* p6 @# N& J6 u# s7 I
dry-point of approximately 69 °C and a specific mass of approximately 0,7 kg/l.! f7 H3 r. e$ c
& \, h. _# ?9 \ W9 u; |9 n# n
为了提供参考,所使用的汽油的指标规定如下:) n. u% f% D: S6 `: m3 e
试验用汽油是脂肪族(无环)溶剂乙烷,其最大芳香烃的体积百分比含量约为0.1%,贝壳松脂丁醇
4 a* G8 V9 w0 K$ j: L3 s, u(溶解溶液)值约为29,初始沸点值约为“c,干涸点值约为69 C,密度约为0. 7 kg/I
9 ]- l: D* ]% E6 Q! n9 ]- U- n* m/ j9 x/ E5 e: M
看看先,合适么? |
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