1、C 52 GBZ GBZ/T 160.27 2004 Methods for determination of boron and its compounds in the air of workplace 2004 5 21 2004 12 1 GBZ/T 160.27 2004 GBZ 1 GBZ 2 Boron trifluoride 2004 12 1 GBZ/T 160.27 2004 1 2 GBZ 159 3 3.1 633nm 3.2 3.2.1 3.2.2 3.2.3 0 3L/min 3.2.4 25ml 3.2.5 3.3 3.3.1 20 1.18g/ml 3.3.2
2、4g 500ml 3.3.3 0.17mol/L 2ml 120ml 3.3.4 15.2g/L 3.3.5 0.927g/L 3.3.6 3.3.7 0.2860g 500ml 0.10mg/ml 5.0 g/ml 3.4 GBZ 159 10.0ml 1.0L/min 15min 2 3d 3.5 3.5.1 3.5.2 1.0ml 1.0ml 3.5.3 6 0.00 0.050 0.10 0.20 0.30 0.40ml 1.0ml 0.0 0.25 0.50 1.00 1.50 2.00 g 1.5ml 0.23ml 4ml pH 3 1.5ml 4.0ml 8min 633nm g 3.5.4 ( g) 3.6 3.6.1 1 2 93 P V o = V 1 273 + t 101.3 Vo L V L t P kPa 3.6.2 2 1 0 m C = 5.83 2 V o C mg/ m 3 m g Vo L 5.83 3.7 3.7.1 0.25 g/ml 0.17mg/ m 3 15L 0.25 2.0 g/ml 2.69.4 3.7.2 96.8 3.7.3 pH 2.8 3.8 20min
