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氮氧化物NO+NO2气体检测管175SH NITROGEN OXIDES 100-2500ppm，一氧化碳检测管,苯检测管,甲苯检测管,二甲苯检测管,氮氧化物检测管,二氧化硫检测管,二氧化碳检测管,氧气检测管,氢气检测管,氟化氢检测管,甲醇检测管,乙醇检测管,丙酮检测管,丁酮检测管,氯苯检测管,氯乙稀检测管,三氯乙稀检测管,二硫化碳测毒管
更新时间：2024-12-03
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氮氧化物NO+NO2气体检测管175SH NITROGEN OXIDES 100-2500ppm
Tube 75SH NITROGEN OXIDES
1. PERFORMANCE
1） Measuring range ：100-2,500 ppm
Number of pump strokes 1（100ml）
2） Sampling time ：1 minute/1 pump stroke
3） Detectable limit ：10 ppm
4） Shelf life ：1 year
5） Operating temperature ：5～45℃
6） Reading ：Direct reading from the scale calibrated by 1 pump stroke
7） Colour change ：White→Green
2. RELATIVE STANDARD DEVIATION
RSD-low：10％ RSD-mid.：10％ RSD-high：10％
3. CHEMICAL REACTION
NO ; By reacting with an Oxidizer, NO2 is produced.
NO＋CrO3＋H2SO4→NO2
NO2＋（C6H5）2NH→（C6H5）2NNO
NO2 ; By reacting with Diphenylamine ,N- Nitroso-diphylamine is produced.
NO2＋（C6H5）2NH→（C6H5）2NNO
4. CALIBRATION OF THE TUBE
NO ; STANDARD GAS CYLINDER METHOD
NO2 ; PERMEATION TUBE METHOD
5. INTERFERENCE AND CROSS SENSITIVITY
100
200
300
400
600
800
1000
1500
2000
2500
ppm
100ml
GAS To pump
PRETREAT REAGENT
（Reddish brown）
Substance Interference ppm Coexistence
Hydrogen chloride Tchhaen bgoetdto tmo Dofa drkis bclouleo.ured layer is 500 Higher readings are given.
Sulphur dioxide The accurecy of reading is not
affected.
（NOTE）
When the concentration of Nitrogen oxides is high（over 2,000 ppm）in the measuring range, a green ring may
occur in the discoloured layer or double-stained layer may occur. The total stain length should be read, even if
the stained layer gets multi-colour discolouration.
上一篇：175SA氮氧化物NO+NO2气体检测管175SA NITROGEN OXIDES 20-250ppm
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