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低濃度二氧化氮NO2氣體檢知管117SD NITROGEN DIOXIDE 0.1-1.0ppm,健康危害: 氮氧化物主要損害呼吸道。吸入氣體初期僅有輕微的眼及上呼吸道刺激癥狀,如咽部不適、干咳等。常經(jīng)數(shù)小時(shí)至十幾小時(shí)或更長時(shí)間潛伏期后發(fā)生遲發(fā)性肺水腫、成人呼吸窘迫綜合征,出現(xiàn)胸悶、呼吸窘迫、咳嗽、咯泡沫痰、紫紺等??刹l(fā)氣胸及縱隔氣腫。肺水腫消退后兩周左右可出現(xiàn)遲發(fā)性阻塞性細(xì)支氣管炎。慢性作用:主要表現(xiàn)為神經(jīng)衷弱綜合征及慢性呼吸道炎癥。個(gè)別病例出現(xiàn)肺纖維化??梢鹧例X酸蝕癥。
更新時(shí)間:2024-11-20
在線留言低濃度二氧化氮NO2氣體檢知管117SD NITROGEN DIOXIDE 0.1-1.0ppm
Tube 17SD
1. PERFORMANCE
1) Measuring range :0.1-1.0 ppm
Number of pump strokes 3(300ml)
2) Sampling time :2.25 minutes/3 pump strokes
3) Detectable limit :0.01 ppm(300ml)
4) Shelf life :1.5 years
5) Operating temperature :0~40℃
6) Reading :Direct reading from the scale calibrated by 3 pump strokes
7) Colour change :White→pale purple
2. RELATIVE STANDARD DEVIATION
RSD-low:10% RSD-mid.:10% RSD-high:10%
3. CHEMICAL REACTION
4. CALIBRATION OF THE TUBE
PERMEATION TUBE METHOD
5. INTERFERENCE AND CROSS SENSITIVITY
GAS To pump
1.0
0.8
0.6
0.4
0.2
0.1
300ml
ppm
(White)
DEHUMIDIFIER
117SC NITROGEN DIOXIDE
Substance Interference ppm Coexistence
Ozone aTfhfeec atecdc.uracy of readings is not 2 Higher readings are given.
Sulphur dioxide 〃7 Lower readings are given.
Chlorine Similar stain is produced. Higher readings are given.
Formaldehyde The accuracy of readings is not
affected.
Formic acid 〃
Carbon monoxide 〃
Carbon dioxide 〃
Ethanol 〃
NO2+H2N
CH3 CH3
NH2 Nitroso compound
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