甲醛浓度0.7ppm等于多少毫克每立方米
浓度单位ppm与mg/m3的换算：按下式计算：mg/m3=M/22.4·ppm·[273/(273+T)]*（Ba/101325）令B=[273/(273+T)]*（Ba/101325）即标准状态下气体的摩尔体积所以公式可转化为：甲醛mg/m3和ppm换算关系为ppm=mg/m3×B/M上式中：B：·[273/(27...
浓度单位ppm与mg/m3的换算：按下式计算：mg/m3=M/22.4·ppm·[273/(273+T)]*（Ba/101325）令B=[273/(273+T)]*（Ba/101325）即标准状态下气体的摩尔体积所以公式可转化为：甲醛mg/m3和ppm换算关系为ppm=mg/m3×B/M上式中：B：·[273/(27...