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產(chǎn)品型號(hào)243U
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廠商性質(zhì)代理商
所 在 地上海市
更新時(shí)間:2025-01-16 08:15:56瀏覽次數(shù):2754次
聯(lián)系我時(shí),請(qǐng)告知來自 化工儀器網(wǎng)苯氣體檢測(cè)管118SB BENZENE 5-300ppm
室內(nèi)空氣甲醛檢測(cè)管No.713 FORMALDEHYDE 0.01-0
氯乙烯CH2=CHCl氣體測(cè)毒管132SC VINYL CHLORID
氯乙烯CH2=CHCl氣體檢知管132SB VINYL CHLORID
硅酸Si(OC2H5)4氣體檢測(cè)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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