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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>128SD丙烯腈檢測(cè)管128SD ACRYLONITRILE CH2=CHCN 0.2-20ppm

丙烯腈檢測(cè)管128SD ACRYLONITRILE CH2=CHCN 0.2-20ppm

簡(jiǎn)要描述:

丙烯腈檢測(cè)管128SD ACRYLONITRILE CH2=CHCN 0.2-20ppm,氣體檢測(cè)管是用來檢測(cè)某種氣體在某一環(huán)境中所含濃度的簡(jiǎn)易檢測(cè)裝置,通過檢測(cè)劑與被檢測(cè)氣體的反應(yīng)而出現(xiàn)顏色變化,來表示所測(cè)環(huán)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(jiǎn)單、使用范圍廣、檢測(cè)準(zhǔn)確、即時(shí)性強(qiáng)和經(jīng)濟(jì)的特點(diǎn)。

更新時(shí)間:2025-01-15

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丙烯腈檢測(cè)管128SD ACRYLONITRILE CH2=CHCN 0.2-20ppm

丙烯腈檢測(cè)管128SD ACRYLONITRILE CH2=CHCN 0.2-20ppm

Tube 28SD
1. PERFORMANCE
1) Measuring range :1-20 ppm 0.5-10 ppm 0.25-5 ppm 0.2-4 ppm
Number of pump strokes 1(100mr) 2(200mr) 4(400mr) 5(500mr)
2) Sampling time :1.5 minutes/1 pump stroke
3) Detectable limit :0.05ppm(500mr)
4) Shelf life :1 year (Necessary to store in refrigerated place ; 0~10℃)
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 :Yellow→Red
2. RELATIVE STANDARD DEVIATION
RSD-low:10% RSD-mid.:5% RSD-high:5%
3. CHEMICAL REACTION
By decomposing with an Oxidizer, Hydrogen cyanide is produced, Hydrogen cyanide reacts with Mercuric
chloride, then Hydrogen chloride is liberated and PH indicator is discoloured.
CH2=CHCN+CrO3+H2SO4→HCN
HCN+HgCI2→HCI
4. CALIBRATION OF THE TUBE
GAS CHROMATOGRAPHY
5. INTERFERENCE AND CROSS SENSITIVITY
125
15
20
10
ppm
100ml
GAS To pump
(Reddish brown)
PRETREAT TUBE DETECTOR TUBE
128SD ACRYLONITRILE
Substance Interference ppm Coexistence
Butadiene
Less than
350 ppm Not affected.
Toluene
Less than
600 ppm 〃
Hexane
Less than
800 ppm 〃
Styrene
Less than
720 ppm 〃
(NOTE)
In case of 2 to 5 pump strokes can be used to detemine the lower concentration.
Following formula is available for actual concentration.
Actual concentration=Tmperature corrected value×
TEMPERATURE CORRECTION TABLE
Scale True Concentration (ppm)
Readings 0℃ 10℃ 20℃ 30℃ 40℃
(ppm) (32°F) (50°F) (68°F) (86°F) (104°F)
20 26 22.5 20 18 17
18 23 20 18 16.5 15.5
16 20.5 18 16 15 14
14 18 15.5 14 13 12
12 15.5 13.5 12 11 10.5
10 13 11 10 9.5 9
8 10.5 9 8 7.5 7
6 8 7 6 6 5.5
4 5.5 4.5 4 4 4
2 3 2 2 2 2
1 1.5 1 1 1 1
1
Number of strokes
www.r-biopharm.com.cn
www.r-biopharm.com.cn

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