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首頁>產(chǎn)品中心>日本光明北川式氣體檢測(cè)管>氣體快速檢測(cè)管>102SA四氫呋喃(CH2)4O氣體檢測(cè)管102SA TETRAHYDROFURAN 0.2-5.0%

四氫呋喃(CH2)4O氣體檢測(cè)管102SA TETRAHYDROFURAN 0.2-5.0%

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四氫呋喃(CH2)4O氣體檢測(cè)管102SA TETRAHYDROFURAN 0.2-5.0%,突法化學(xué)事故應(yīng)急檢測(cè)箱、有限空間氣體檢測(cè)箱和化學(xué)事故綜合檢測(cè)箱的應(yīng)用,中國(guó)封閉空間氣體監(jiān)測(cè)箱,必發(fā)生化專業(yè)提供進(jìn)口氣體檢測(cè)箱,可以同時(shí)檢測(cè)多種氣體,測(cè)試可以在短時(shí)間內(nèi)查出各種未知化學(xué)物質(zhì),品牌,質(zhì)量可靠,對(duì)突發(fā)事件中的有毒有害氣體進(jìn)行快速的定性和半定量檢測(cè)。突發(fā)性事故氣體快速檢測(cè)箱主要應(yīng)用于突發(fā)性氣體泄漏事故和緊急救援,產(chǎn)品組合根據(jù)國(guó)家環(huán)保總局和國(guó)家安全生產(chǎn)辦公室相關(guān)標(biāo)準(zhǔn),體積小、 操作簡(jiǎn)便、精確

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四氫呋喃(CH2)4O氣體檢測(cè)管102SA TETRAHYDROFURAN 0.2-5.0%

四氫呋喃(CH2)4O氣體檢測(cè)管102SA TETRAHYDROFURAN 0.2-5.0%

1. PERFORMANCE
1) Measuring range :2.0-5.0% 0.2-3.0%
Number of pump strokes 1/2(50ml) 1(100ml)
2) Sampling time :1.5 minutes/1 pump stroke
3) Detectable limit :20 ppm
4) Shelf life :3 years
5) Operating temperature :0~40℃
6) Temperature compensation :Necessary(See "TEMPERATURE CORRECTION TABLE")
7) Reading :Graduations printed on the tube are calibrated by Acetone at 1 pump stroke and
Tetrahydrofuran is determined by using a conversion chart.
8) Colour change :Orange→Dark brown
2. RELATIVE STANDARD DEVIATION
RSD-low:15% 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
0.1
0.2
0.5
1.0
1.5
2.0
%
GAS To pump
Tube No.
102SA C TETRAHYDROFURAN
Substance Interference ppm Coexistence
Alcohols Similar stain is produced. Higher readings are given.
Atromatic hydrocarbons FIG.1 〃〃
Ketones 〃〃
Esters FIG.2 〃〃
Halogenated hydrocarbons WPahleo leb rroewang.ent is changed to 0.5% 〃
(NOTE)
In case of 1 / 2 pump stroke, following conversion scale is available for actual concentration.
0
2
3
1
Toluene〔%〕?
FIG.1 Influence of Toluene
Tetra-hydrofuran
indicating value 〔%〕
Tetra-hydrofuran
indicating value 〔%〕
1 2
Interference
0
2
3
1
Ethyl acetate〔%〕?
FIG.2 Influence of Ethyl acetate
1 2
0.1 0.2
0.2
0.5
1.0
1.5
2.0
0.5
1.0
1.5
2.0
2.5
3.0
Tetrahydrofuran concentration(%)?
02SA tude reading(%)?
(100mR)?
0.1
0.2
0.5
1.0
1.5
2.0
2.0
3.0
4.0
5.0
Tetrahydrofuran concentration(%)?
02SA tude reading(%)?
(50mR)?
TEMPERATURE CORRECTION TABLE
Scale True Concentration (%)
Readings 0℃ 10℃ 20℃ 30℃ 40℃
(%) (32°F) (50°F) (68°F) (86°F) (104°F)
3.0 - 3.2 3.0 2.8 2.7
2.5 3.0 2.7 2.5 2.4 2.2
2.0 2.4 2.1 2.0 1.9 1.8
1.5 1.8 1.6 1.5 1.4 1.3
1.0 1.1 1.1 1.0 1.0 0.9
0.5 0.6 0.5 0.5 0.5 0.5

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