當前位置:上海境宣實業有限公司>>日本光明北川式氣體檢測管>>氣體快速檢測管>> 102SA四氫呋喃(CH2)4O氣體檢測管102SA TETRAHYDROFURAN 0.2-5.0%
室內空氣甲醛檢測管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(CH2)4O氣體檢測管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
請輸入賬號
請輸入密碼
請輸驗證碼
以上信息由企業自行提供,信息內容的真實性、準確性和合法性由相關企業負責,化工儀器網對此不承擔任何保證責任。
溫馨提示:為規避購買風險,建議您在購買產品前務必確認供應商資質及產品質量。