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标准值
全部（涂层瓶小于50ppm,普通瓶大于50ppm）31ppm/0.655mg/m321-10.0ppm110.0ppm/7.2mg/m3以上U=1,k=2110ppm-800ppm不确定2110ppm/20mg/m3110ppm/21mg/m3以上不确定度2110ppm/6.55mg/m311ppm/1.5mg/m3不确定2120ppm120ppm-600ppm不确定2199.999%_4L_氮_10.0MPa1C3H8100ppmCO0.5%CO28%NO400ppm1C3H8500ppmCO5%CO216%NO2000ppm1CO：余N24L,GBW(E)062830,25mg/m3（20ppm）以上不确定11GBW(E)084106,10ppm -100ppm,100ppm-2000ppm1NO14mg/m3SO229mg/m3以上不确定度2NO10ppmSO210ppm以上不确定度21NO2：余N24LGBW(E)083652,206mg/m3（100ppm）以上不确定度21