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氮氧化物NO+NO2氣體測毒管175U NITROGEN OXIDES 0.5-30ppm,氮氧化物檢測儀,氮氧化物氣體檢測儀,便攜式氣體檢測儀,可燃氣體檢測儀,有毒氣體檢測儀.檢測儀采用進口優質傳感器,質量可靠,性能穩定,證書齊備,超低濃度氮氧化物檢測儀,體檢測儀,氨氣檢測儀,氯氣檢測儀,硫化氫檢測儀,一氧化碳檢測儀,二氧化碳檢測儀,可燃氣體檢測儀,氧氣檢測儀,有毒性氣體檢測儀,復合型氣體檢測,室內空氣污染檢測,氣味測試,煙氣分析,鍋爐效率,
更新時間:2024-12-19
在線留言氮氧化物NO+NO2氣體測毒管175U NITROGEN OXIDES 0.5-30ppm
Tube 75U
1. PERFORMANCE
1) Measuring range :1.0-30 ppm 0.5-15 ppm
Number of pump strokes 1/2(50ml) 1(100ml)
2) Sampling time :1 minute/1 pump stroke
3) Detectable limit :0.2 ppm(100ml)
4) Shelf life :3 years(Necessary to store in a refrigerated place ; 0~10℃)
5) Operating temperature :0~40℃
6) Reading :Direct reading from the scale calibrated by 1 pump stroke
7) Colour change :White→Pale purple
2. RELATIVE STANDARD DEVIATION
RSD-low:10% RSD-mid.:5% RSD-high:5%
3. CHEMICAL REACTION
NO ; By reacting with an Oxidizer, NO2 is produced.
NO+CrO3+H2SO4→NO2
NO2+3, 3’-Dimethylnaphthidine→Nitroso-compound
NO2 ; By reacting with 3, 3’-Dimethylnaphthidine, Nitroso-compound is produced.
NO2+3, 3’-Dimethylnaphthidine→Nitroso-compound
4. CALIBRATION OF THE TUBE
NO ; STANDARD GAS CYLINDER METHOD
NO2 ; PERMEATION TUBE METHOD
5. INTERFERENCE AND CROSS SENSITIVITY
0.5
1
2
3
5
10
15
ppm
100ml
GAS To pump
PRETREAT REAGENT
(Reddish brown)
Substance Interference ppm Coexistence
Chlorine Similar stain is produced. The accurecy of reading is not
affected.
Hydrogen chloride 〃〃
Sulphur dioxide Tafhfeec atecdc.uracy of reading is not 500 Lower readings are given.
Hydrogen sulphide 〃5 〃
Ozone 〃
Hexane 〃
Laughing gas 〃
(NOTE)
In case of 1 / 2 pump strokes, following formula is available for the actual concentration.
Actual concentration=2×Reading value
175U NITROGEN OXIDES
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