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丙烯腈氣體檢測管128SA ACRYLONITRILE CH2=CHCN 0.1-3.5%,氣體檢測管是用來檢測某種氣體在某一環境中所含濃度的簡易檢測裝置,通過檢測劑與被檢測氣體的反應而出現顏色變化,來表示所測環境中的氣體濃度。在不用任何能源、電源的情況下,具有操作簡單、使用范圍廣、檢測準確、即時性強和經濟的特點。
更新時間:2024-12-18
在線留言丙烯腈氣體檢測管128SA ACRYLONITRILE CH2=CHCN 0.1-3.5%
Tube 28SA
1. PERFORMANCE
1) Measuring range :0.1-3.5%
Number of pump strokes 1(100ml)
2) Sampling time :1.5 minutes/1 pump stroke
3) Detectable limit :10 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→Dark green
2. RELATIVE STANDARD DEVIATION
RSD-low:10% RSD-mid.:5% RSD-high:5%
3. CHEMICAL REACTION
Chromium oxide is reduced.
CH2=CHCN+Cr6++H2SO4→Cr3+
4. CALIBRATION OF THE TUBE
GAS CHROMATOGRAPHY
5. INTERFERENCE AND CROSS SENSITIVITY
0.1
0.3
0.5
0.8
1.0
1.5
2.0
2.5
3.0
3.5
100ml
%
GAS To pump
128SA ACRYLONITRILE
TEMPERATURE CORRECTION TABLE
Scale True Concentration (%)
Readings 0℃ 10℃ 20℃ 30℃ 40℃
(%) (32°F) (50°F) (68°F) (86°F) (104°F)
3.5 5.5 4.6 3.5 3.2 2.8
3.0 4.7 3.9 3.0 2.7 2.4
2.5 3.9 3.2 2.5 2.2 2.0
2.0 3.1 2.6 2.0 1.8 1.6
1.5 2.4 1.9 1.5 1.4 1.2
1.0 1.6 1.3 1.0 0.9 0.8
0.8 1.3 1.0 0.8 0.7 0.7
0.5 0.8 0.7 0.5 0.5 0.4
0.3 0.5 0.4 0.3 0.3 0.3
0.1 0.2 0.1 0.1 0.1 0.1
Substance Interference ppm Coexistence
Acetylene Whole layer is discolour- Whole layer is discoloured to Brown
ed to Brown. 3% and higher readings are given.
Propane 〃0.2% 〃
Other organic gases or vapours
except Halogenated hydrocar- Similar stain is produced. 50 Higher readings are given.
bons
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