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测定物质 |
Cl2C=CCl2四氯乙烯 |
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测定范围 |
10}/span>300 ppm (温度校正?#215;2(/span> |
5}/span>150ppm (印刷刻度) |
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取气野/span> |
50ml |
100ml |
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测定时间 |
2分钟/100ml |
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*低检测限?/span> |
1ppm(采氓/span>100mL时) |
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颜色变化 |
黄色→红艱/span> |
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反应原理 |
Cl2C=CCl2*/span>PbO2+H2SO4↑/span>HCl |
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有效朞/span> |
2年(冷藏保存0,/span>10℃) |
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使用温度范围 |
0,/span>40ℂ/span>(温度校正) |
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湿度的影哌/span> |
无影哌/span> |
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其它影响物质 |
物质 |
浓度'/span>ppm(/span> |
影响结果 |
|
氯乙?/span> |
指示偏高 |
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氯化氡/span> |
指示偏高 |
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1+/span>2-二氯乙烷 |
指示偏高 |
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三氯乙烯 |
指示偏高 |
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氯气 |
指示偏高 |
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测定操作 |
/span>打通检测管两端 ①/span>按检测管上箭头方向将其插入吸气泵前端 ②/span>将红线与轴线对齐 ③/span>根据所需检测范围抽取定量气体、/span> ④/span>抽取100ml气体时手泵的红色指示器弹出就说明气体已全部进入检测管中,需要多次采集气体时将手柄推回去,同样方法采集即?/span> ?/span>取下检测管,读值。如果取气量增多,则重复③-⑤操作步骣/span> |
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浓度换算 (ppm咋/span>mg/m3之间) |
测定浓度'/span>mg/m3(/span> =测定浓度(ppm)【温度校正后的浓度?#215;'/span>165.8/22.4?#215;'/span>273/'/span>273+t)) 在取气为50ml测定10,/span>300ppm范围时,结果2 |
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使用环境 |
温度9/span>20℃以外使用温度校止/span> 湿度:无影响 气压9/span>读取值(ppm?#215;1013'/span>hPa?#247;测定点气压(hPa(/span> |
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温度校正?/span>
读取倻/span> '/span>ppm(/span> |
真实浓度'/span>ppm(/span> |
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0ℂ/span> |
10ℂ/span> |
20ℂ/span> |
30ℂ/span> |
40ℂ/span> |
|
150 |
,/span> |
172 |
150 |
138 |
134 |
100 |
144 |
116 |
100 |
92 |
88 |
50 |
70 |
56 |
50 |
46 |
44 |
30 |
40 |
36 |
30 |
28 |
26 |
20 |
22 |
21 |
20 |
19 |
18 |
10 |
10 |
10 |
10 |
10 |
10 |
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