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首页>产品中心>日本光明北川式气体检测管>气体快速检测管>103SD二氧化硫SO2气体检测管式检测仪103SD SULPHUR DIOXIDE 1-60ppm

二氧化硫SO2气体检测管式检测仪103SD SULPHUR DIOXIDE 1-60ppm

简要描述:

二氧化硫SO2气体检测管式检测仪103SD SULPHUR DIOXIDE 1-60ppm,气体检测管是利用填充在玻璃管中的检测剂与被测气体发生化学反应而发生颜色变化,通过观察变色层的长度,得到被测气体的浓度。在一定直径的玻璃管内紧密地装填检测剂,将两端烧封,然后在玻璃管表面印制表示浓度的刻度,就制成了一支检测管。检测剂通过在硅胶或氧化铝等物质表面附着显色试剂的方法所制成的。显色试剂遇到被测气体时,会发生特定反应,产生变色,这种检测试剂具有相当的稳定性。

更新时间:2024-04-09

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二氧化硫SO2气体检测管式检测仪103SD SULPHUR DIOXIDE 1-60ppm

二氧化硫SO2气体检测管式检测仪103SD SULPHUR DIOXIDE 1-60ppm

Tube 03SD
1. PERFORMANCE
1) Measuring range :1-60 ppm
Number of pump strokes 1(100ml)
2) Sampling time :1 minute/1 pump stroke
3) Detectable limit :0.5 ppm
4) Shelf life :3 years
5) Operating temperature :0~40℃
6) Reading :Direct reading from the scale calibrated by 1 pump stroke
7) Colour change :Pink→Yellow
2. RELATIVE STANDARD DEVIATION
RSD-low:10% RSD-mid.:5% RSD-high:5%
3. CHEMICAL REACTION
By reacting with alkali, PH indicator is discoloured.
SO2+2NaOH→Na2SO3+H2O
4. CALIBRATION OF THE TUBE
PERMEATION TUBE METHOD
5. INTERFERENCE AND CROSS SENSITIVITY
60
50
40
30
20
10
5
1
ppm
SO2
GAS To pump
103SD SULPHUR DIOXIDE
Substance ppm Interference ppm Coexistence
Chlorine Pale pink stain is produced. SO2 ×c2onc. Higher readings are given.
SO2 conc. The top of discoloured layer
Nitrogen dioxide 20 〃×1 becomes un clear and higher
readings are given.