GB 00160-34

C52GBZGBZ/T160.342004Methodsfordeterminationofseleniumanditscompoundsintheairofworkplace20045212004121GBZ/T160.342004GBZ1GBZ2[SeleniumSeleniumdioxide]2004121GB162171996AWS/T13019991996GBZ/T160.34200412GBZ159—3196.0nm43.2.10.8μm3.2.240mm3.2.325mm3.2.403L/min010L/min3.2.53.2.625ml3.2.78mm800Ar600ml/min1000ml/min3.33.3.1201.42g/ml3.3.2201.18g/ml3.3.330%3.3.41.2mol/L10ml100ml3.3.57g10g2.5g500ml3.3.60.1000g()10ml100ml1.0mg/ml1.0ml1000ml30ml6moL/L1.0μg/ml3.4GBZ1593.4.15L/min15min3.4.21L/min28h3.4.31L/min28h23.53.5.13.5.23ml2ml5ml6moL/L10ml3.5.350.00.501.02.03.0ml0.00.050.10.20.3μg/ml3ml2ml10ml3(μg/ml)3.5.4(μg/ml)3.63.6.11293PVo=V1273+t101.3VoLVLtPkPa3.6.2210cC=2VoCmg/m310mlcg/mlVoL3.6.3GBZ1593.73.7.10.005μg/ml0.0007mg/m375L0.0050.3μg/ml2.14.63.7.299.63.7.33.7.44.12,3-DAN4.24.2.10.8μm4.2.240mm4.2.325mm4.2.403L/min010L/min4.2.550ml4.2.64.2.74.2.8150ml4.2.960ml4.2.1010ml4.2.11378nm10nm520nm8nm4.34.3.1201.42g/ml4.3.2201.18g/ml4.3.3201.67g/ml4.3.4250.9g/ml4.3.5+1+94.3.650mg1000ml0.2μg/ml1004.3.74.3.874g/L4.3.910g/L4.3.1020mg1ml(2g/L)2ml(95%)(20)100ml4.3.117.2mol/L4.3.126mol/L4.3.13DAN1g/L0.1gDAN100ml(0.1mol/L)15min20ml5min340.5cm4.3.144.3.150.1634g(H2SeO3)20ml100ml1.0mg/ml1.0μg/ml4.4GBZ1594.4.15L/min15min4.4.21L/min28h4.4.31L/min28h24.54.5.14.5.25ml10.0ml1.0ml20ml4.5.360.000.100.300.500.701.00ml20ml0.000.100.300.500.701.00μg1ml1ml2pH1.52.0pH1.5mlDAN5min5ml4min3μg4.5.4(μg)4.64.6.114.6.2310mC=3VoCmg/m3mμgVoL4.6.3GBZ1594.74.7.10.002μg/ml0.0003mg/m375L0.0020.05μg/ml1.24.7.299.64.7.34.7.44.7.5100μg,10μg-5.1196.0nm5.25.2.10.8μm5.2.240mm5.2.325mm5.2.403L/min010L/min5.2.550ml5.2.65.2.75.2.825ml5.2.910μl5.2.105.35.3.1201.42g/ml5.3.2201.18g/ml5.3.3201.67g/ml5.3.4+=1+95.3.50.96mol/L8ml100ml5.3.66gNaBH45g1L5.3.70.1634g(H2SeO3)20ml100ml1.0mg/ml1.0μg/ml5.4GBZ1595.4.15L/min15min5.4.21L/min28h5.4.31L/min28h25.55.5.15.5.25ml20025.0ml5.0ml5.5.3510.000.100.250.500.75ml0.000.0040.0100.0200.030μg/ml25ml25ml35ml5.0ml1ml5s0.8L/min—196.0nm3(μg/ml)5.5.4(μg/ml)5.65.6.115.6.2425cC=4VoCmg/m325mlcg/mlVoL5.6.3GBZ1595.75.7.10.004μg/ml0.0013mg/m375L0.0040.030μg/ml4.62.71.65.7.20.2ml5.7.3500020ng/ml100100.01μg/ml0.01μg/ml5.7.499.6