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The petroleum spirit is an aliphatic solvent hexane having a maximum aromatics content of% b* `) L$ ]* c5 q
0,1 % by volume, a kauri-butanol value of 29, an initial boiling point of approximately 65 °C, a; P+ J0 A4 K$ R" P
dry-point of approximately 69 °C and a specific mass of approximately 0,7 kg/l. ^5 \$ d8 T% z
1 O N% N" Q _+ H
为了提供参考,所使用的汽油的指标规定如下:: ?2 |* x% `* X- U
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
7 Q3 p8 v+ c# O5 _- `. y(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; e/ ?* G1 I6 Q' }
6 c/ y. _/ G/ y4 I1 s1 @看看先,合适么? |
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