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氮氧化物NO+NO2氣體測(cè)毒管175U NITROGEN OXIDES 0.5-30ppm,氮氧化物檢測(cè)儀,氮氧化物氣體檢測(cè)儀,便攜式氣體檢測(cè)儀,可燃?xì)怏w檢測(cè)儀,有毒氣體檢測(cè)儀.檢測(cè)儀采用進(jìn)口優(yōu)質(zhì)傳感器,質(zhì)量可靠,性能穩(wěn)定,證書齊備,超低濃度氮氧化物檢測(cè)儀,體檢測(cè)儀,氨氣檢測(cè)儀,氯氣檢測(cè)儀,硫化氫檢測(cè)儀,一氧化碳檢測(cè)儀,二氧化碳檢測(cè)儀,可燃?xì)怏w檢測(cè)儀,氧氣檢測(cè)儀,有毒性氣體檢測(cè)儀,復(fù)合型氣體檢測(cè),室內(nèi)空氣污染檢測(cè),氣味測(cè)試,煙氣分析,鍋爐效率,
更新時(shí)間:2025-01-08
在線留言氮氧化物NO+NO2氣體測(cè)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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