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溴甲烷CH3Br氣體檢測管157SA METHYL BROMIDE 10-500ppm 溴甲烷CH3Br 英文名稱(chēng) bromomethane;methyl bromide 又稱(chēng)溴代甲烷或甲基溴,甲基溴,又稱(chēng)溴代甲烷或甲基溴,是一種無(wú)色無(wú)味的液體。它具有強烈的熏蒸作用,能高效、廣譜地殺滅各種有害生物。溴甲烷; 甲基溴; Bromomethane; Methylbromide; Monobromomethane; CAS:74-83-9
更新時(shí)間:2024-07-14
在線(xiàn)留言溴甲烷CH3Br氣體檢測管157SA METHYL BROMIDE 10-500ppm
1. PERFORMANCE
1) Measuring range :10-500ppm
Number of pump strokes 1(100ml)
2) Sampling time :2 minutes/1 pump stroke
3) Detectable limit :1 ppm
4) Shelf life :3 years(Necessary to store in a 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 :White→Reddish orange
2. RELATIVE STANDARD DEVIATION
RSD-low:15% RSD-mid.:10% RSD-high:10%
3. CHEMICAL REACTION
By decomposing with an Oxidizer, Bromine is produced. Bromine reacts with o-Toluidine and red Orthoquinone
is produced.
CH3Br+I2O5+CrO3+H2SO4→Br2
4. CALIBRATION OF THE TUBE
GAS CHROMATOGRAPHY
5. INTERFERENCE AND CROSS SENSITIVITY
10
30
50
100
150
200
300
400
500
ppm
100ml
GAS To pump
(Brown) (White)
PRETREAT TUBE DETECTOR TUBE
Tube No.
157SA METHYL BROMIDE
Substance ppm Interference ppm Coexistence
Chlorine 1 Similar stain is produced. 1 Higher readings are given.
Bromine 1 〃1 〃
Nitrogen dioxide 1 〃1 〃
Dichloromethane 500 〃500 〃
Chloroform 50 〃50 〃
Ethylene dibromide 50 〃50 〃
Trichloroethylene 50 〃50 〃
Tetrachloroethylene 50 〃50 〃
TEMPERATURE CORRECTION TABLE
Scale True Concentration (ppm)
Readings 0℃ 5℃ 10℃ 15℃ 20℃ 30℃ 40℃
(ppm) (32°F) (41°F) (50°F) (59°F) (68°F) (86°F) (104°F)
500 - - - 620 500 430 390
400 - - 630 475 400 360 325
300 - 675 430 345 300 280 260
200 580 320 235 210 200 190 175
150 260 185 160 150 150 140 130
100 120 110 100 100 100 95 90
50 50 50 50 50 50 50 50
上一篇:157JS甲基溴CH3Br氣體檢測管157JS METHYL BROMIDE 3-70g/m3
下一篇:157SB溴代甲烷CH3Br氣體檢測管157SB METHYL BROMIDE 0.4-80ppm
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