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The petroleum spirit is an aliphatic solvent hexane having a maximum aromatics content of
% A2 M4 r q* F! g5 U0,1 % by volume, a kauri-butanol value of 29, an initial boiling point of approximately 65 °C, a |6 D4 |# _) e; o: K1 G
dry-point of approximately 69 °C and a specific mass of approximately 0,7 kg/l.
, y- _6 p0 Q: l0 W2 c6 Z& [, D8 K1 c$ Z/ s0 R! S1 {" C
为了提供参考,所使用的汽油的指标规定如下:9 B5 B/ Q/ n$ J( k& Q" ~7 V
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! x& d, P9 l1 _# 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/ _, w0 F1 q% e* [# w+ t( w. _& B
5 X+ V: K$ t5 y1 O O' B看看先,合适么? |
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