GBZ T 160.12-2004 工作场所空气有毒物质测定 镁及其化合物.pdf

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1、C 52 GBZ GBZ/T 160.12 2004 Methods for determination of magnesium and its compounds in the air of workplace 2004 5 21 2004 12 1 GBZ/T 160.12 2004 GBZ 1 GBZ 2 Magnesium Magnesium oxide 2004 12 1 GB 16195 1996 A 1996 GBZ/T 160.12 2004 1 2 GBZ 159 3 285.2nm - 4 4.1 0.8 m 4.2 40mm 4.3 25mm 4.4 0 3L/min

2、0 10L/min 4.5 50ml 4.6 4.7 10ml 4.8 - 5 5.1 20 1.42g/ml 5.2 20 1.67g/ml 5.3 20 1.18g/ml 5.4 100ml 900ml 5.5 0.16mol/L 10ml 990ml 5.6 6mol/L 10ml 10ml 5.7 25g/L 5.8 0.1000g ( ) 2ml 2ml 100ml 1.0mg/ml 10.0g/ml 6 GBZ 159 6.1 5L/min 15min 6.2 1L/min 2 8h 6.3 1L/min 2 8h 2 7 7.1 7.2 5ml 200 C 1ml 10ml 7.3 6 0.0 1.0 2.0 3.0 4.0 5.0ml 1ml 10.0ml 0.0 1.0 2.0 3.0 4.0 5.0 g/ml 285.2nm 3 ( g/ml) 7.4 ( g/ml) 8 8.1 1 29 3 P V o = V 1 273 + t 101.3 Vo L V L t P kPa 8.2 2 10 c C = 2 V o C 1.66 mg/ m 3 c g/ml 10 ml Vo L 8.3 GBZ 159 9 9.1 0.01 g/ml 0.0013 mg/ m 3( 75L ) 0.01 5 g/ml 9.2 99 99 9.3