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硅酸Si(OC2H5)4氣體檢測管243U TETRAETHOXYSILANE 5-200ppm,日本光明理化學株式會社北川式( KITAGAWA) 1 31型無機氣體定性檢測管和1 86B型有機氣體定性檢測管可在事故現場 1分鐘內定性測定 1 0種無機氣體和 4 1種有機氣體 ,操作簡便 ,現場直讀 ,本質安全 ,適用于各種氣態污染物事故現場。
更新時間:2024-12-19
在線留言硅酸Si(OC2H5)4氣體檢測管243U TETRAETHOXYSILANE 5-200ppm
1. PERFORMANCE
1) Measuring range :12.5-200 ppm 5-80 ppm
Number of pump strokes 1(100ml) (200ml)
2) Sampling time :3 minutes/2 pump strokes
3) Detectable limit :1 ppm(200ml)
4) Shelf life :3 years
5) Operating temperature :0~40℃
6) Temperature compensation :Necessary(refer to "Table 2. Temperature CorrectionTable")
7) Reading :Direct reading from the scale calibrated by 2 pump strokes
8) Colour change :Yellow→Pale blue
2. RELATIVE STANDARD DEVIATION
RSD-low:10% RSD-mid.:10% RSD-high:10%
3. CHEMICAL REACTION
S(i OC2H5)4+Cr6++H2SO4→Cr3+
4. CALIBRATION OF THE TUBE
GAS CHROMATOGRAPHY
5. INTERFERENCE AND CROSS SENSITIVITY
200ml
80
60
40
20
10
5
ppm
GAS To pump
Tube No.
243U TETRAETHOXYSILANE
TEMPERATURE CORRECTION TABLE
Scale True Concentration (ppm)
Readings 0℃ 5℃ 10℃ 20℃ 30℃ 40℃
(ppm) (32°F) (41°F) (50°F) (68°F) (86°F) (104°F)
80 110 100 90 80 72 64
60 80 75 70 60 54 45
40 56 52 47 40 33 28
20 27 25 23 20 16 14
10 13 12 11 10 8 7
5 6 5 5 5 5 4
(NOTE)
In case of 1 pump stroke, following formula is available for the actual concentration.
Actual concentration=2.5×Temperature corrected value
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