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                      首頁>產品中心>日本光明北川式氣體檢測管>氣體快速檢測管>216S馬來酸酐C4H2O3氣體檢測管216S MALEIC ANHYDRIDE 0.2-10ppm

                      馬來酸酐C4H2O3氣體檢測管216S MALEIC ANHYDRIDE 0.2-10ppm

                      簡要描述:

                      馬來酸酐C4H2O3氣體檢測管216S MALEIC ANHYDRIDE 0.2-10ppm 別名:順丁烯二酸酐,英文名稱 cis-Butenedioic anhydride ;maleic anhydride,健康危害:本品粉塵和蒸氣具有刺激性。吸入后可引起咽炎、喉炎和支氣管炎。可伴有腹痛。眼和皮膚直接接觸有明顯刺激作用,并引起灼傷。慢性影響:慢性結膜炎,鼻粘膜潰瘍和炎癥。有致敏性,可引起皮疹和哮喘。

                      更新時間:2024-12-25

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                      馬來酸酐C4H2O3氣體檢測管216S MALEIC ANHYDRIDE 0.2-10ppm

                      馬來酸酐C4H2O3氣體檢測管216S MALEIC ANHYDRIDE 0.2-10ppm

                      Tube No.216S
                      1. PERFORMANCE
                      1) Measuring range :1-50 ppm
                      Number of pump strokes 1(100ml)
                      2) Sampling time :1.5 minutes/1 pump stroke
                      3) Detectable limit :0.2 ppm
                      4) Shelf life :3 years
                      5) Operating temperature :0~40℃
                      6) Temperature compensation :Necessary(See "TEMPERATURE CORRECTION TABLE")
                      7) Reading :Direct reading from the scale calibrated by 1 pump stroke
                      8) Colour change :Pale Pink→Yellow
                      2. RELATIVE STANDARD DEVIATION
                      RSD-low:15% RSD-mid.:10% RSD-high:10%
                      3. CHEMICAL REACTION
                      By reacting with alkali,PH indicator is discoloured.
                      CH3COOH+NaOH→CH3CO2Na+H2O
                      4. CALIBRATION OF THE TUBE
                      DIFFUSION TUBE METHOD
                      5. INTERFERENCE AND CROSS SENSITIVITY
                      3
                      1
                      ppm
                      100ml
                      GAS To pump
                      5
                      10
                      20
                      30
                      40
                      50
                      216S ACETIC ACID
                      Substance ppm Interference ppm Coexistence
                      Sulphur dioxide Similar stain is produced. 1/20×Acetic Higher readings are given.
                      acid
                      Nitrogen dioxide 300 〃10 Unclear stain is produced.
                      Hydrogen chloride Pink stain is produced. 2×Acetic FIG.1 acid Higher readings are given.
                      Chlorine FIG.2 Yellow stain is produced. 5 〃
                      TEMPERATURE CORRECTION TABLE
                      Scale True Concentration (ppm)
                      Readings 0℃ 10℃ 20℃ 30℃ 40℃
                      (ppm) (32°F) (50°F) (68°F) (86°F) (104°F)
                      50 63 57 50 45 40
                      40 50 45 40 36 31
                      30 37 33 30 27 23
                      20 24 22 20 18 16
                      10 12 11 10 9 8
                      5 6 6 5 5 4
                      3 4 4 3 3 2
                      1 1 1 1 1 1
                      0
                      50
                      30
                      20
                      40
                      10
                      Hydrogen chloride〔ppm〕?
                      FIG.1 Influence of Hydrogen chloride
                      Acetic acid indicating value 〔ppm〕
                      100 200 300
                      Coexistence
                      Interference
                      0
                      60
                      20
                      40
                      Chlorine〔ppm〕?
                      FIG.2 Influence of Chlorine

                      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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