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                      首頁>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>183U苯酚C6H5OH氣體檢測(cè)管183U PHENOL 0.5-25.0ppm

                      苯酚C6H5OH氣體檢測(cè)管183U PHENOL 0.5-25.0ppm

                      簡(jiǎn)要描述:

                      苯酚C6H5OH氣體檢測(cè)管183U PHENOL 0.5-25.0ppm,苯酚(C6H6O,PhOH),又名石炭酸、羥基苯,是Z簡(jiǎn)單的酚類有機(jī)物,一種弱酸。常溫下為一種無色晶體。有毒。有腐蝕性,常溫下微溶于水。人口服致死量報(bào)道不一,LD為2~15g,或MLD為140mg/kg,14g/kg。國(guó)外報(bào)道酚液污染皮膚面積為25%,10分鐘死亡,血酚為0.74mmlo/L。低濃度酚能使蛋白變性,高濃度能使蛋白沉淀。對(duì)皮膚、粘膜有強(qiáng)烈的腐蝕作用,也可抑制中樞神經(jīng)系統(tǒng)或損害肝、腎功。

                      更新時(shí)間:2024-12-26

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                      苯酚C6H5OH氣體檢測(cè)管183U PHENOL 0.5-25.0ppm

                      苯酚C6H5OH氣體檢測(cè)管183U PHENOL 0.5-25.0ppm

                      1. PERFORMANCE
                      1) Measuring range :0.5-25.0 ppm
                      Number of pump strokes 2(200ml)
                      2) Sampling time :3 minutes/2 pump strokes
                      3) Detectable limit :0.3 ppm
                      4) Shelf life :2 years
                      5) Operating temperature :10~40℃
                      6) Temperature compensation :Necessary(See "TEMPERATURE CORRECTION TABLE")
                      7) Reading :Direct reading from the scale calibrated by 2 pump strokes
                      8) Colour change :Pale yellow→Pale brown
                      2. RELATIVE STANDARD DEVIATION
                      RSD-low:10% RSD-mid.:5% RSD-high:5%
                      3. CHEMICAL REACTION
                      Cresol is oxidized and the polymer is produced.
                      CH3C6H4OH+Ce4+→CH3C6H4O→(CH3C6H4O)n
                      4. CALIBRATION OF THE TUBE
                      ABSORPTIOMETRIC METHOD
                      5. INTERFERENCE AND CROSS SENSITIVITY
                      GAS To pump
                      25.0
                      20.0
                      15.0
                      10.0
                      5.0
                      3.0
                      1.0
                      0.5
                      ppm
                      ????
                      ????
                      Tube No.
                      183U CRESOL
                      88
                      Substance Interference ppm Coexistence
                      Phenols FIG.1 Similar stain is produced. 2.5 Higher readings are given.
                      Ammonia White stain is produced. 200 Discolouration of gas inlet side is
                      FIG.2 faded and higher reading are given.
                      Aliphatic amines 〃50 〃
                      Two layers discolouration of Pale
                      Aromatic amines Blue stain is produced. 50 brown and blue are produced and
                      higher reading are given.
                      (NOTE)
                      This tube scale is calibrated based on Phenol and the same scale is available for Cresol.
                      0
                      5
                      15
                      10
                      Phenol〔ppm〕?
                      FIG.1 Influence of Phenol
                      Cresol indicating value 〔ppm〕
                      5 0
                      5
                      15
                      10
                      Ammonia〔ppm〕?
                      FIG.2 Influence of Ammonia
                      Cresol indicating value 〔ppm〕
                      100 200
                      TEMPERATURE CORRECTION TABLE
                      Scale True Concentration (ppm)
                      Readings 10℃ 15℃ 20℃ 30℃ 40℃
                      (ppm) (50°F) (59°F) (68°F) (95°F) (104°F)
                      25.0 31.2 27.8 25.0 21.8 18.8
                      20.0 24.5 22.3 20.0 17.5 15.0
                      15.0 18.4 16.7 15.0 13.1 11.3
                      10.0 12.3 11.1 10.0 8.8 7.5
                      5.0 6.1 5.6 5.0 4.4 3.8
                      3.0 3.7 3.3 3.0 2.6 2.3
                      1.0 1.2 1.1 1.0 0.9 0.8
                      0.5 0.5 0.5 0.5 0.5 0.5

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