物质名称：密度（20℃）混标1(㎎/㎏)混标2(㎎/㎏)混标3(㎎/㎏)混标4(㎎/㎏)
0.870.8670.8670.88020.87580.81130.6919V=m/ρ
1㎏/0.6919
等于1445.3ml100.4102.7101.9101.6101.51049.6
205.8210.5208.9208.3207.91006.5
509520.7516.6515514.21017.3
708.6724.9719.3717715.91029.4
苯
甲苯乙苯邻二甲苯1.2.4-三甲苯2-己酮异辛烷溶液体积:
苯500㎎=0.5g0.5g/0.87等于0.56ml0.00039v/v
0.039v%v
混标5(㎎/㎏)溶液质量（g）
1051.21075.310671063.710621070.3
3.4595
V=m/ρ