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首頁>產品中心>日本光明北川式氣體檢測管>氣體快速檢測管>103SC二氧化硫SO2氣體測毒管103SC SULPHUR DIOXIDE 20-300ppm

二氧化硫SO2氣體測毒管103SC SULPHUR DIOXIDE 20-300ppm

簡要描述:

二氧化硫SO2氣體測毒管103SC SULPHUR DIOXIDE 20-300ppm,氣體檢測管是利用填充在玻璃管中的檢測劑與被測氣體發生化學反應而發生顏色變化,通過觀察變色層的長度,得到被測氣體的濃度。在一定直徑的玻璃管內緊密地裝填檢測劑,將兩端燒封,然后在玻璃管表面印制表示濃度的刻度,就制成了一支檢測管。檢測劑通過在硅膠或氧化鋁等物質表面附著顯色試劑的方法所制成的。顯色試劑遇到被測氣體時,會發生特定反應,產生變色,這種檢測試劑具有相當的穩定性。

更新時間:2024-12-19

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二氧化硫SO2氣體測毒管103SC SULPHUR DIOXIDE 20-300ppm

二氧化硫SO2氣體測毒管103SC SULPHUR DIOXIDE 20-300ppm

Tube 03SC
1. PERFORMANCE
1) Measuring range :20-300 ppm
Number of pump strokes 1(100ml)
2) Sampling time :1 minute/1 pump stroke
3) Detectable limit :3 ppm
4) Shelf life :2 years
5) Operating temperature :0~40℃
6) Reading :Direct reading from the scale calibrated by 1 pump stroke
7) Colour change :Purple→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
STANDARD GAS CYLINDER METHOD
5. INTERFERENCE AND CROSS SENSITIVITY
300
250
200
150
100
50
20
ppm
SO2
GAS To pump
103SC SULPHUR DIOXIDE
Substance ppm Interference ppm Coexistence
Chlorine Similar stain is produced. SO2 FIG.1 ×2 1co/5nc. Higher readings are given.
Nitrogen dioxideFIG.2 100 Pink stain is produced. 〃〃
Hydrogen SulphFidIeG.3 SO×2 1c0o0nc. Lower readings are given.
Coexistence
Interference
0
300
200
250
100
150
50
Chlorine
FIG.1 Influence of Chlorine
Sulphur dioxide indicating value 〔ppm〕
50 100 150 200〔ppm〕? 0
300
200
250
100
150
50
Nitrogen dioxide
FIG.2 Influence of Nitrogen dioxide
Sulphur dioxide indicating value 〔ppm〕
10 20 30 40〔ppm〕? 0
300
200
250
100
150
50
Hydrogen sulfide
FIG.3 Influence of Hydrogen sulfide