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>產(chǎn)品中心>日本光明北川式氣體檢測管>氣體快速檢測管>196SN,N-二甲基甲酰胺(CH3)2NCHO 196S N,N-DIMETHYL FORMAMIDE

                      N,N-二甲基甲酰胺(CH3)2NCHO 196S N,N-DIMETHYL FORMAMIDE

                      簡要描述:

                      日本光明理化檢測管,創(chuàng)立于1947年,是日本氣體檢測管的創(chuàng)始人,氣體檢測管和AP-20檢測儀一起使用可以檢測400種氣體。比長式氣體檢測管在不用任何能源,電源的情況下,能夠快速檢測,具有操作簡單,攜帶方便等特點,并可在空氣中對有害氣體的檢測.氣體檢測管,活性炭管,硅膠采樣管,采氣袋,吸收瓶,測塵濾膜等耗材,采集室內(nèi)外大氣環(huán)境及車間現(xiàn)場中的一氧化碳,二氧化硫,氮氧化物氣體的檢測N,N-二甲基甲酰胺(CH3)2NCHO氣體檢測管 196S N,N-DIMETHYL FORMAMIDE 1-30ppm

                      更新時間:2025-01-01

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

                      分享到: 1
                      在線留言
                      N,N-二甲基甲酰胺(CH3)2NCHO 196S N,N-DIMETHYL FORMAMIDE

                      N,N-二甲基甲酰胺(CH3)2NCHO氣體檢測管 196S N,N-DIMETHYL FORMAMIDE 1-30ppm


                      1. PERFORMANCE
                      1) Measuring range :2-30 ppm 1-5 ppm
                      Number of pump strokes 1(100ml) 2(200ml)
                      2) Sampling time :1 minute/1 pump stroke
                      3) Detectable limit :0.2 ppm(200ml)
                      4) Shelf life :2 years
                      5) Operating temperature :10~40℃
                      6) Temperature compensation :Necessary(0~20℃)(See "TEMPERATURE CORRECTION TABLE")
                      7) Reading :Direct reading from the scale calibrated by 1 pump stroke
                      8) Colour change :Pale purple→Pale yellow
                      2. RELATIVE STANDARD DEVIATION
                      RSD-low:10% RSD-mid.:5% RSD-high:5%
                      3. CHEMICAL REACTION
                      By reacting with alkali, Amine is produced. Further, PH indicator is discoloured by reacting together with
                      phosphoric acid.
                      HCON(CH3)2+NaOH→HN(CH3)2
                      HN(CH3)2+H3PO4→〔(CH3)2NH2〕2HPO4
                      4. CALIBRATION OF THE TUBE
                      GAS CHROMATOGRAPHY
                      5. INTERFERENCE AND CROSS SENSITIVITY
                      GAS To pump
                      30
                      25
                      20
                      15
                      10
                      5
                      2
                      100ml
                      ppm
                      ????
                      Tube No.
                      196S N, N-DIMETHYL FORMAMIDE
                      (NOTE)
                      When the concectration is below 5 ppm, 2 pump strokes can be used to determine the lower concentration.
                      Following formula is available for the actual concentration.
                      Actual concentration=1/2×Temperature corrected value
                      Substance Interference ppm Coexistence
                      Sulphur dioxide FIG.1 Tafhfeec atecdc.uracy of readings is not 200 Lower readings are given.
                      Carbon dioxide FIG.2 〃0.1% 〃
                      Ammonia Similar stain is produced. Higher readings are given.
                      Amines 〃〃〃
                      Hydrazine 〃〃〃
                      0
                      15
                      20
                      10
                      5
                      Sulphur dioxide〔ppm〕?
                      FIG.1 Influence of Sulphur dioxide
                      N,N-Dimethyl fomamide
                      indicating value 〔ppm〕
                      100 200 300 400 0
                      15
                      20
                      10
                      5
                      Carbon dioxide〔%〕?
                      FIG.2 Influence of Carbon 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
                      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. 昭通市| 玛纳斯县| 拉萨市| 广昌县| 宜兰县| 石狮市| 浦城县| 江门市| 吉木萨尔县| 松阳县| 顺义区| 广饶县| 原平市| 永善县| 佛山市| 郸城县| 镶黄旗| 宁陵县| 潮安县| 临武县| 聂拉木县| 固安县| 泸西县| 凤凰县| 西贡区| 泸州市| 吉安县| 辽阳市| 伊宁市| 邓州市| 海原县| 宁都县| 咸宁市| 板桥市| 克什克腾旗| 景洪市| 沙坪坝区| 合水县| 洪泽县| 东乌| 古田县|