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當(dāng)前位置:上海境宣實業(yè)有限公司>>日本光明北川式氣體檢測管>>氣體快速檢測管>> 162U四氫呋喃THF氣體測毒管162U TETRAHYDROFURAN 20-400ppm
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產(chǎn)品型號162U
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廠商性質(zhì)代理商
所 在 地上海市
更新時間:2024-12-11 10:27:17瀏覽次數(shù):2083次
聯(lián)系我時,請告知來自 化工儀器網(wǎng)室內(nèi)空氣甲醛檢測管No.713 FORMALDEHYDE 0.01-0
氯乙烯CH2=CHCl氣體測毒管132SC VINYL CHLORID
氯乙烯CH2=CHCl氣體檢知管132SB VINYL CHLORID
四氫呋喃氣體測毒管162U TETRAHYDROFURAN 20-400ppm
Tube 62U
1. PERFORMANCE
1) Measuring range :20-400 ppm
Number of pump strokes 1(100ml)
2) Sampling time :1.5 minutes/1 pump stroke
3) Detectable limit :10 ppm
4) Shelf life :2 years
5) Operating temperature :0~40℃
6) Temperature compensation :Necessary(See "TEMPERATURE CORRECTION TABLE")
7) Reading :Direct reading from the scale calibrated by 1 pump stroke
8) Colour change :Pale yellow→Pale blue
2. RELATIVE STANDARD DEVIATION
RSD-low:10% RSD-mid.:10% RSD-high:5%
3. CHEMICAL REACTION
Potassium dichromate is reduced.
CH2-CH2
O+Cr6++H2SO4→Cr3+
CH2-CH2
4. CALIBRATION OF THE TUBE
GAS CHROMATOGRAPHY
5. INTERFERENCE AND CROSS SENSITIVITY
ppm
400
300
200
150
100
50
20
GAS To pump
DEHUMIDIFIER
(White)
162U TETRAHYDROFURAN
Substance Interference Coexistence
Alcohols Similar stain is produced. Higher readings are given.
Esters Whole reagent is changed to Black. 〃
Ketones 〃〃
Aromatic hydrocarbons 〃〃
TEMPERATURE CORRECTION TABLE
Scale True Concentration (ppm)
Readings 10℃ 20℃ 30℃ 40℃
(ppm) (50°F) (68°F) (86°F) (104°F)
500 680 500 390 320
400 540 400 320 250
300 400 300 240 190
200 260 200 160 130
150 190 150 120 90
100 130 100 80 60
50 60 50 40 30
20 30 20 20 10
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