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丙酮气体检测管102SA ACETONE CH3COCH3 0.1-5.0%
Tube 02SA
1. PERFORMANCE
1) Measuring range :1.0-5.0% 0.1-2.0%
Number of pump strokes 1/2(50mr) 1(100mr)
2) Sampling time :1.5 minute/1 pump stroke
3) Detectable limit :200 ppm
4) Shelf life :3 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 :Orange→brown
2. RELATIVE STANDARD DEVIATION
RSD-low:10% RSD-mid.:5% RSD-high:5%
3. CHEMICAL REACTION
Chromium oxide is reduced.
CH3COCH3+Cr6++H2SO4→Cr3+
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
ACETONE
*Methanol is indicated with half the sensitivity and Ethyl acetate has the same sensitivity with Acetone.
(NOTE)
1) If the discolouration is over the scale, replace the tube with new one and pull the handle at half stroke(to 50mr
line). And read a figure from the scale on the tube.
2) Correct the reading value with theTEMPERATURE CORRECTION TABLE first . and convert the value into an
actual concentration by uing the conversion scale shown in the instruction sheet.
Substance Interference Coexistence
Alcohols FIG.1 Similar stain is produced. Higher readings are given.
Other ketones 〃〃
Aromatic hydrocarbons 〃〃
Esters FIG.2 〃〃
Halogenated hydrocarbons Wdishcoolelo rueraegde. nt is slightly 0.5% 〃
0
0.5
1.0
1.5
Methanol〔%〕�
FIG.1 Influence of Methanol
Acetone indicating value 〔%〕
0.5 1.0 0
0.5
1.0
1.5
Ethyl acetate〔%〕�
FIG.2 Influence of Ethyl acetate
Acetone indicating value 〔%〕
0.5 1.0
TEMPERATURE CORRECTION TABLE
Scale True Concentration (%)
Readings 0℃ 10℃ 20℃ 30℃ 40℃
(%) (32°F) (50°F) (68°F) (86°F) (104°F)
2.0 - 2.38 2.00 1.78 1.60
1.5 2.20 1.76 1.50 1.30 1.16
1.0 1.44 1.18 1.00 0.86 0.76
0.5 0.72 0.60 0.50 0.42 0.36
0.1 0.16 0.12 0.10 0.08 0.08
0.1
0.2
0.5
1.0
1.5
2.0 5.0
4.0
3.0
2.0
1.0
Conversion
scale (I)
(50mR actual value)�
(100mR concentration scale)�
(%)�
102SA www.r-biopharm.com.cn
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