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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(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>130U甲硫醇CH3SH氣體檢測(cè)管130U METHYL MERCAPTAN 0.5-10ppm

                      甲硫醇CH3SH氣體檢測(cè)管130U METHYL MERCAPTAN 0.5-10ppm

                      簡(jiǎn)要描述:

                      甲硫醇CH3SH氣體檢測(cè)管130U METHYL MERCAPTAN 0.5-10ppm,甲硫醇又名硫氫甲烷、甲烷硫醇,是一種無(wú)色氣體,作為一種重要的有機(jī)會(huì)成中間體,主要用于合成材料、農(nóng)藥和醫(yī)藥等方面。健康危害: 吸入后可引起頭痛及不同程度的麻醉作用;高濃度吸入可引起呼吸麻痹而死亡。環(huán)境危害:對(duì)環(huán)境有危害,對(duì)水體可造成污染。

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

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                      甲硫醇CH3SH氣體檢測(cè)管130U METHYL MERCAPTAN 0.5-10ppm

                      甲硫醇CH3SH氣體檢測(cè)管130U METHYL MERCAPTAN 0.5-10ppm

                      Tube 30U
                      1. PERFORMANCE
                      1) Measuring range :1-10 ppm 0.5-5 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 :2 years
                      5) Operating temperature :0~40℃
                      6) Reading :Direct reading from the scale calibrated by Methyl mercaptan at 1 pump stroke
                      7) Colour change :Pale yellow→Pink
                      2. RELATIVE STANDARD DEVIATION
                      RSD-low:10% RSD-mid.:5% RSD-high:5%
                      3. CHEMICAL REACTION
                      By reacting with Mercuric cholride, Hydrogen chloride is produced and PH indicator is discoloured.
                      C2H5SH+HgCI2→RS(HgCI)+HCI
                      4. CALIBRATION OF THE TUBE
                      STANDARD GAS CYLINDER METHOD
                      5. INTERFERENCE AND CROSS SENSITIVITY
                      ????
                      ????
                      ??????????
                      ??????????
                      ????
                      GAS ???? To pump
                      5
                      4
                      3
                      2
                      1
                      0.5
                      100ml
                      ppm
                      (White)
                      DEHUMIDIFIER
                      130U ETHYL MERCAPTAN
                      Substance Interference Coexistence
                      Arsine Similar stain is produced. Higher readings are given.
                      Hydrogen selenide 〃〃
                      Phosphine 〃〃
                      Hydrogen sulphide 〃
                      Hydrogen cyanide Whole reagent is changed to Red. 〃
                      Whole reagent is changed to
                      Sulphur dioxide Pale red, but Pink stain indicates
                      Mercaptans conc.
                      (NOTE)
                      In case of 1 / 2 pump strokes, following formula is available for the actual concentration.
                      Actual concentration=2×Reading value

                       
                      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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