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                      首頁(yè)>產(chǎn)品中心>日本光明北川式氣體檢測(cè)管>氣體快速檢測(cè)管>158S二乙烯基苯C6H4(CHCH2)2氣體檢測(cè)管158S DIVINYL BENZENE 5-50ppm

                      二乙烯基苯C6H4(CHCH2)2氣體檢測(cè)管158S DIVINYL BENZENE 5-50ppm

                      簡(jiǎn)要描述:

                      二乙烯基苯C6H4(CHCH2)2氣體檢測(cè)管158S DIVINYL BENZENE 5-50ppm, 在冬季和夏季使用檢測(cè)管,會(huì)有什么影響嗎?基本上檢測(cè)管在0-40度之間使用是不會(huì)有影響的。請(qǐng)參考各檢測(cè)管使用說(shuō)明書(shū)。“SEI"認(rèn)證是什么?“安全設(shè)備學(xué)會(huì)Safety Equipment Institute(SEI)"—上Z為嚴(yán)格的認(rèn)證之一

                      更新時(shí)間:2025-01-01

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                      二乙烯基苯C6H4(CHCH2)2氣體檢測(cè)管158S DIVINYL BENZENE 5-50ppm

                      二乙烯基苯C6H4(CHCH2)2氣體檢測(cè)管158S DIVINYL BENZENE 5-50ppm

                      Tube 58S
                      1. PERFORMANCE
                      1) Measuring range :5-300 ppm 2.5-150 ppm
                      Number of pump strokes 1(100ml) 2(200ml)
                      2) Sampling time :1 minute/1 pump stroke
                      3) Detectable limit :0.5 ppm(200ml)
                      4) Shelf life :3 years
                      5) Operating temperature :0~40℃
                      6) Reading :Direct reading from the scale calibrated by 1 pump stroke
                      7) Colour change :White→Yellow
                      2. RELATIVE STANDARD DEVIATION
                      RSD-low:15% RSD-mid.:15% RSD-high : 10%
                      3. CHEMICAL REACTION
                      A polymer of Styrene is produced by sulphuric acid.
                      4. CALIBRATION OF THE TUBE
                      GAS CHROMATOGRAPHY
                      5. INTERFERENCE AND CROSS SENSITIVITY
                      300
                      250
                      200
                      150
                      100
                      50
                      20
                      5
                      ppm
                      GAS To pump
                      158S STYRENE
                      Substance ppm Interference ppm Coexistence
                      Acrylonitrile FIG.1 Tafhfeec atecdc.uracy of readings is not 400 Lower readings are given.
                      Butadiene 3 Similar stain is produced. 5 Uneven discolouration is produced
                      FIG.2 and higher readings are given.
                      Formaldehyde 〃15 Yellowish orange stain is produced
                      FIG.3 and higher readings are given.
                      Acetaldehyde 〃350 Similar stain is produced and
                      higher readings are given.
                      Methyl alcohol The accuracy of readings is not 0.35% Pale discolouration is produced
                      affected. and higher readings are given.
                      Ethyl alcohol 〃0.18% 〃
                      Ethyl acetate 〃700 〃
                      Butyl acetate 〃700 〃
                      (NOTE)
                      In case of 2 pump strokes, following formula is available for actual concentration.
                      Actual concentration=1/2×Reading value.
                      0
                      200
                      100
                      Acrylonitrile Butadiene
                      FIG.1 Influence of Acrylonitrile Styrene indicating value 〔
                      ppm〕
                      500 1000 0
                      200
                      100
                      FIG.2 Influence of Butadiene
                      Styrene indicating value 〔ppm〕
                      〔ppm〕? 50 100 0
                      200
                      100
                      Formaldehyde
                      FIG.3 Influence of Formaldehyde

                      韩国三级大全久久网站_色噜噜一区二区三区_高清欧美性猛交xxxx黑人猛_激情五月开心婷婷_来一水AV@lysav
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