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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(cè)管>氣體快速檢測(cè)管>120SD硫化氫H2S氣體檢知管120SD HYDROGEN SULPHIDE 1-60ppm

                      硫化氫H2S氣體檢知管120SD HYDROGEN SULPHIDE 1-60ppm

                      簡(jiǎn)要描述:

                      硫化氫H2S氣體檢知管120SD HYDROGEN SULPHIDE 1-60ppm,接觸高濃度硫化氫后以腦病表現(xiàn)為顯蓍,出現(xiàn)頭痛、頭暈、易激動(dòng)、步態(tài)蹣跚、煩躁、意識(shí)模糊、譫妄、癲癇樣抽搐可呈全身性強(qiáng)直一陣攣發(fā)作等;可突然發(fā)生昏迷;也可發(fā)生呼吸困難或呼吸停止后心跳停止。眼底檢查可見個(gè)別病例有視神經(jīng)乳頭水腫。部分病例可同時(shí)伴有肺水腫。

                      更新時(shí)間:2025-01-08

                      發(fā)郵件給我們:554328895@qq.com

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                      硫化氫H2S氣體檢知管120SD HYDROGEN SULPHIDE 1-60ppm

                      硫化氫H2S氣體檢知管120SD HYDROGEN SULPHIDE 1-60ppm

                      1. PERFORMANCE
                      1) Measuring range :2-60 ppm 1-30 ppm
                      Number of pump strokes 1/2(50ml) 1(100ml)
                      2) Sampling time :1 minute/1 pump stroke
                      3) Detectable limit :0.2 ppm(100ml)
                      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→Pale brown
                      2. RELATIVE STANDARD DEVIATION
                      RSD-low:10% RSD-mid.:5% RSD-high:5%
                      3. CHEMICAL REACTION
                      By reacting with Lead acetate(II), Lead sulphide is produced.
                      H2S+Pb(CH3COO)2→PbS+2CH3COOH
                      4. CALIBRATION OF THE TUBE
                      PERMEATION TUBE METHOD
                      5. INTERFERENCE AND CROSS SENSITIVITY
                      GAS To pump
                      135
                      10
                      15
                      20
                      25
                      30
                      100ml
                      ppm
                      ????
                      Tube No.
                      120SD HYDROGEN SULPHIDE
                      (NOTE)
                      In case of 1 /2 pump strokes, following formula is available for the actual concentration.
                      Actual concentration=2×Reading value
                      Substance Interference ppm Coexistence
                      Sulphur dioxide FIG.1 aTfhfeec atecdc.uracy of readings is not 10 Higher readings are given.
                      Mercaptans FIG.2 〃300 〃
                      Nitrogen dioxide FIG.3 〃2 Lower readings are given.
                      0
                      60
                      80
                      20
                      40
                      Sulphur dioxide〔ppm〕?
                      FIG.1 Influence of Sulphur dioxide
                      Hydrogen sulphide indicating value 〔ppm〕
                      200 400
                      100ml
                      0
                      60
                      80
                      20
                      40
                      Ethyl mercaptan〔ppm〕?
                      FIG.2 Influence of Ethyl mercaptan
                      Hydrogen sulphide indicating value 〔ppm〕
                      200 400 600
                      100ml
                      0
                      150
                      50
                      100
                      Nitrogen dioxide〔ppm〕?
                      FIG.3 Influence of Nitrogen dioxide

                      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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