1. <i id="cnzke"></i>
    2. <td id="cnzke"><ins id="cnzke"></ins></td>
          1. <noscript id="cnzke"><dl id="cnzke"></dl></noscript>

              1. <noscript id="cnzke"><tbody id="cnzke"></tbody></noscript>

                  • <td id="cnzke"><tr id="cnzke"></tr></td>
                  • <source id="cnzke"><tr id="cnzke"></tr></source>

                    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

                      產(chǎn)品列表PRODUCTS LIST

                      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>111U乙酸乙酯氣體檢測(cè)管111U ETHYL ACETATE 20-140ppm

                      乙酸乙酯氣體檢測(cè)管111U ETHYL ACETATE 20-140ppm

                      簡(jiǎn)要描述:

                      異丙基苯C6H5CH(CH3)2檢測(cè)管,異丙苯Cumene,111U ETHYL ACETATE (+) 乙酸乙酯氣體檢測(cè)管,臭氧在空氣中的濃度單位是ppm或mg/m3;臭氧在水中的濃度單位是ppm或mg/L。換算方法:在空氣中時(shí)1ppm=2mg/m3;在水中時(shí),1ppm=1mg/L。更多信息請(qǐng)瀏覽:www.yd666.com

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

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

                      分享到: 1
                      在線留言
                      乙酸乙酯氣體檢測(cè)管111U ETHYL ACETATE 20-140ppm

                      乙酸乙酯氣體檢測(cè)管111U ETHYL ACETATE 20-140ppm

                      Tube No.
                      111U
                      1. PERFORMANCE
                      1) Measuring range :20-1,000 ppm
                      Number of pump strokes 1(100ml)
                      2) Sampling time :1.5 minutes/1 pump stroke
                      3) Detectable limit :10 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 1 pump stroke
                      8) Colour change :Yellow→Brown
                      2. RELATIVE STANDARD DEVIATION
                      RSD-low:10% RSD-mid.:10% RSD-high:5%
                      3. CHEMICAL REACTION
                      Chromium oxide is reduced.
                      CH3CO2C2H5+Cr6++H2SO4→Cr3+
                      4. CALIBRATION OF THE TUBE
                      GAS CHROMATOGRAPHY
                      5. INTERFERENCE AND CROSS SENSITIVITY
                      GAS To pump
                      1000
                      800
                      600
                      400
                      200
                      100
                      50
                      20
                      ??????????
                      ?? ??
                      111U ETHYL ACETATE
                      TEMPERATURE CORRECTION TABLE
                      Scale True Concentration (ppm)
                      Readings 10℃ 15℃ 20℃ 25℃ 30℃ 35℃ 40℃
                      (ppm) (50°F) (59°F) (68°F) (77°F) (86°F) (95°F) (104°F)
                      1,000 1,330 1,200 1,000 830 700 600 500
                      800 1,080 950 800 670 550 470 400
                      600 830 720 600 500 420 380 300
                      400 570 480 400 330 280 240 200
                      200 280 240 200 170 140 120 100
                      100 150 120 100 80 70 60 50
                      50 70 60 50 40 30 20 10
                      20 30 25 20 15 10 7 4
                      Substance Interference Coexistence
                      Alcohols Similar stain is produced. Higher reading are given.
                      Esters 〃〃
                      Ketones 〃〃
                      Aromatic hydrocarbons 〃〃
                      Whole reagent is discoloured to It the top of brown stain is clear,
                      Paraffin hydrocarbons Pale brown. athffee catcecdu.racy of readings is not
                      Halogenated hydrocarbons FIG.1 〃〃
                      0
                      200
                      400
                      600
                      800
                      1000
                      Trichloroethylene〔ppm〕?
                      FIG.1 Influence of Trichloroethylene
                      Ethyl acetate indicating value 〔ppm〕
                      100 200 300

                      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
                      1. <i id="cnzke"></i>
                      2. <td id="cnzke"><ins id="cnzke"></ins></td>
                            1. <noscript id="cnzke"><dl id="cnzke"></dl></noscript>

                                1. <noscript id="cnzke"><tbody id="cnzke"></tbody></noscript>

                                    • <td id="cnzke"><tr id="cnzke"></tr></td>
                                    • <source id="cnzke"><tr id="cnzke"></tr></source>

                                      1. 新泰市| 桐城市| 阿拉善左旗| 同仁县| 色达县| 华安县| 鄢陵县| 万源市| 吴忠市| 台中市| 惠水县| 江北区| 张家界市| 阳谷县| 和静县| 乐都县| 扎囊县| 马龙县| 城步| 黑山县| 怀集县| 自治县| 富蕴县| 彰化市| 永和县| 东明县| 临夏市| 平和县| 清水河县| 九江县| 株洲县| 双江| 青阳县| 江门市| 理塘县| 临湘市| 兴宁市| 亳州市| 华亭县| 门头沟区| 新乡市|