- GASTEC手動(dòng)氣體采樣...
- GASTEC氣體檢測(cè)管
- GASTEC長(zhǎng)時(shí)間（時(shí)量...
- GASTEC電泵用氣體檢...
- 日本光明（北川式）氣體檢...
- 日本KOMYOKK手動(dòng)氣...
- 自動(dòng)氣體采樣器
- 突發(fā)性有毒有害氣體檢測(cè)箱
- 惡臭氣體快速檢測(cè)箱
- 煙道氣體快速檢測(cè)箱
- 快速水質(zhì)檢測(cè)管
- 快速水質(zhì)、地質(zhì)污染**檢...
- 便攜式氣體報(bào)警器
- 恩尼克思?xì)怏w檢測(cè)報(bào)警器
- 壓縮空氣有害不純物檢測(cè)套...
- 標(biāo)準(zhǔn)氣體發(fā)生裝置
- 室內(nèi)空氣質(zhì)量檢測(cè)儀
- 特殊用檢測(cè)管
- 國(guó)產(chǎn)氣體檢測(cè)管及采樣器
- 便攜式氣味傳感器
- 氣體采樣袋
- 配件及耗材
- 氣體傳感器
產(chǎn)品詳情
簡(jiǎn)單介紹：
北川式甲基碘CH3I氣體檢測(cè)管176S ，甲基碘CH3I氣體檢測(cè)管176S
北川式甲基碘CH3I氣體檢測(cè)管176S ，甲基碘CH3I氣體檢測(cè)管176S METHYL IODIDE 2-40ppm
詳情介紹：
北川式甲基碘CH3I氣體檢測(cè)管176S ，甲基碘CH3I氣體檢測(cè)管176S
北川式甲基碘CH3I氣體檢測(cè)管176S ，甲基碘CH3I氣體檢測(cè)管176S METHYL IODIDE 2-40ppm，日本光明理化工業(yè)株式會(huì)社從1947年開始，在氣體分析領(lǐng)域開拓了六十余年 , 形成了馳名于世的 ” 北川 ” 式氣體檢測(cè)管。氣體快速分析法 ” 北川 ” 的歷史就是日本檢測(cè)管的歷史 。目前是世界上*大的檢測(cè)管生產(chǎn)廠家，也是日本**家通過美國(guó)SEI的認(rèn)證，歐盟的認(rèn)證的檢測(cè)管廠家。公司不僅有ISO9001:2000的認(rèn)證，還獲得了環(huán)境管理的ISO14001的認(rèn)證。北川式手動(dòng)氣體采集器AP-20 備有采氣完成指示計(jì) , 可以清楚的判明采氣是否完成 . • 有專門截留玻璃的截留槽 , 以防止檢測(cè)管割尖時(shí)玻璃片飛濺 . • 有采氣容積為 50 毫升和 100 毫升的兩段式制動(dòng)卡 . • 采氣器極為小巧 , 并有便于攜帶的皮具包 。
Tube No.176S
1. PERFORMANCE
1) Measuring range ：4-40 ppm 2-20 ppm
Number of pump strokes 2(200ml) 4(400ml)
2) Sampling time ：4 minutes/2 pump strokes
3) Detectable limit ：0.5 ppm(400ml)
4) Shelf life ：8 months
5) Operating temperature ：10～40℃
6) Temperature compensation ：Necessary(See "TEMPERATURE CORRECTION TABLE")
7) Reading ：Direct reading from the scale calibrated by 2 pump strokes
8) Colour change ：White→Grey
2. RELATIVE STANDARD DEVIATION
RSD-low：10％ RSD-mid.：10％ RSD-high：10％
3. CHEMICAL REACTION
Iodine pentoxide is reduced.
CH3I＋I(xiàn)2O5＋H2SO4→I2＋CO2＋H2O
4. CALIBRATION OF THE TUBE
GAS CHROMATOGRAPHY
5. INTERFERENCE AND CROSS SENSITIVITY
40
35
30
25
20
15
10
468
ppm
GAS To pump
(Yellow)
PRETREAT TUBE DETECTOR TUBE
176S METHYL IODIDE
Substance Interference ppm Coexistence
Acetone Similar stain is produced. 700 Higher readings are given.
Hydrogen sulphide FIG.1 〃7 〃
Hexane FIG.2 〃500 〃
Benzene 2 Lower readings are given.
Toluene 2 〃
Xylene 2 〃
Halogenated hydrocarbons Double-layer stain is produced and
accurate readings are affected.
0
30
20
Hydrogen sulphide〔ppm〕?
FIG.1 Influence of Hydrogen sulphide
Methyl iodide
indicating value 〔ppm〕
510 15 20 25 3035
10
0
20
Hexane〔ppm〕?
FIG.2 Influence of Hexane
Methyl iodide
indicating value 〔ppm〕
500 1000 1500 2000 2500
10
TEMPERATURE CORRECTION TABLE
Scale True Concentration (ppm)
Readings 0℃ 10℃ 20℃ 30℃ 40℃
(ppm) (32°F) (50°F) (68°F) (86°F) (104°F)
40 － － 40 46 52
35 － 52 35 42 49
30 54 39 30 37 44
25 37 27 25 25 23
20 30 22 20 23 30
15 24 17 15 17 24
10 17 11 10 12 17
5 10 5 5 5 10
(NOTE)
In case of 4 pump strokes, following formula is available for the actual concentration.
Actual concentration ＝ 1/2 × Tmperature corrected value
1. PERFORMANCE
1) Measuring range ：4-40 ppm 2-20 ppm
Number of pump strokes 2(200ml) 4(400ml)
2) Sampling time ：4 minutes/2 pump strokes
3) Detectable limit ：0.5 ppm(400ml)
4) Shelf life ：8 months
5) Operating temperature ：10～40℃
6) Temperature compensation ：Necessary(See "TEMPERATURE CORRECTION TABLE")
7) Reading ：Direct reading from the scale calibrated by 2 pump strokes
8) Colour change ：White→Grey
2. RELATIVE STANDARD DEVIATION
RSD-low：10％ RSD-mid.：10％ RSD-high：10％
3. CHEMICAL REACTION
Iodine pentoxide is reduced.
CH3I＋I(xiàn)2O5＋H2SO4→I2＋CO2＋H2O
4. CALIBRATION OF THE TUBE
GAS CHROMATOGRAPHY
5. INTERFERENCE AND CROSS SENSITIVITY
40
35
30
25
20
15
10
468
ppm
GAS To pump
(Yellow)
PRETREAT TUBE DETECTOR TUBE
176S METHYL IODIDE
Substance Interference ppm Coexistence
Acetone Similar stain is produced. 700 Higher readings are given.
Hydrogen sulphide FIG.1 〃7 〃
Hexane FIG.2 〃500 〃
Benzene 2 Lower readings are given.
Toluene 2 〃
Xylene 2 〃
Halogenated hydrocarbons Double-layer stain is produced and
accurate readings are affected.
0
30
20
Hydrogen sulphide〔ppm〕?
FIG.1 Influence of Hydrogen sulphide
Methyl iodide
indicating value 〔ppm〕
510 15 20 25 3035
10
0
20
Hexane〔ppm〕?
FIG.2 Influence of Hexane
Methyl iodide
indicating value 〔ppm〕
500 1000 1500 2000 2500
10
TEMPERATURE CORRECTION TABLE
Scale True Concentration (ppm)
Readings 0℃ 10℃ 20℃ 30℃ 40℃
(ppm) (32°F) (50°F) (68°F) (86°F) (104°F)
40 － － 40 46 52
35 － 52 35 42 49
30 54 39 30 37 44
25 37 27 25 25 23
20 30 22 20 23 30
15 24 17 15 17 24
10 17 11 10 12 17
5 10 5 5 5 10
(NOTE)
In case of 4 pump strokes, following formula is available for the actual concentration.
Actual concentration ＝ 1/2 × Tmperature corrected value