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                    1. 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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                      首頁>產(chǎn)品中心>日本光明北川式氣體檢測管>氣體快速檢測管>216S正戊酸CH3(CH2)3COOH氣體檢測管216S N-VALERIC ACID 3-70ppm

                      正戊酸CH3(CH2)3COOH氣體檢測管216S N-VALERIC ACID 3-70ppm

                      簡要描述:

                      正戊酸CH3(CH2)3COOH氣體檢測管216S N-VALERIC ACID 3-70ppm,中文名稱: (正)戊酸,英文名稱: n-valeric acid,健康危害: 吸入、攝入或經(jīng)皮膚吸收后對身體有害。可引起灼傷。對眼睛、皮膚、粘膜和上呼吸道具有強(qiáng)烈刺激作用。吸入后,可引起喉、支氣管的炎癥、水腫、痙攣,化學(xué)性肺炎或肺水腫。接觸后可引起燒灼感、咳嗽、喘息、氣短、頭痛、惡心和嘔吐等。

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

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                      正戊酸CH3(CH2)3COOH氣體檢測管216S N-VALERIC ACID 3-70ppm

                      正戊酸CH3(CH2)3COOH氣體檢測管216S N-VALERIC ACID 3-70ppm

                      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
                      Acetic acid indicating value 〔ppm〕
                      250 500
                      Coexistence
                      Interference

                      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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