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The petroleum spirit is an aliphatic solvent hexane having a maximum aromatics content of8 g5 B7 n" C1 B8 {5 U3 @1 @: V
0,1 % by volume, a kauri-butanol value of 29, an initial boiling point of approximately 65 °C, a
% c, F, n: L- k [1 Bdry-point of approximately 69 °C and a specific mass of approximately 0,7 kg/l.; f; C: |+ \3 n& n( |. j' [
, b+ ]6 k {7 T: _/ V: X" D
为了提供参考,所使用的汽油的指标规定如下:8 V; N! k" r" S$ o9 b& b) }4 b
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
9 N7 P# [6 x1 ^2 y! W(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/I9 h7 t2 p3 r# a1 C4 d
# Z3 x& o- q9 M看看先,合适么? |
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