xylene specifications 1. High quanlity and best price ! sgs, ciq ,iso inspection product name: xylene standard :qgslr-jlb-44-316-2002 number:18-07-2010 term standard measured value appearance transparent liquid without mechanical impurity qualified purity % 99.5 min 99.68 color(hazen platinum-colalt color no) 20 10 density(20),kgm3 860-870 864 distillation range initial boiling point final boiling point 5max 137min 143max 4.0137.9 141.9 acyl washing colorimetric color of acid layer is not darker than 1000ml, containing 0.5g potassium dichromate standard solution color of acid layer is not darker than 1000ml, containing 0.7g potassium dichromate standard solution total sulfur content