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The petroleum spirit is an aliphatic solvent hexane having a maximum aromatics content of
( Y- {2 x: @5 K' |0,1 % by volume, a kauri-butanol value of 29, an initial boiling point of approximately 65 °C, a- e; i7 `( Y6 N* y3 A7 m
dry-point of approximately 69 °C and a specific mass of approximately 0,7 kg/l.
# D7 o; Y& C( l4 x9 X& n7 w( i) K$ l/ I0 G4 x
为了提供参考,所使用的汽油的指标规定如下:& b: y/ D/ f& ?% k+ e5 `# c: s
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5 ^+ x3 b6 d1 E9 U0 k
(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+ N& V p' k! p# `
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看看先,合适么? |
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