丰满岳乱妇在线观看中字无码,漂亮的保姆5在线观看中文,把我绑在床头上夹奶头视频,免费人做人爱完整版视频

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>113SB庚烷CH3(CH2)5CH3氣體檢測(cè)管113SB HEPTANE 100-2000ppm

庚烷CH3(CH2)5CH3氣體檢測(cè)管113SB HEPTANE 100-2000ppm

簡(jiǎn)要描述:

庚烷CH3(CH2)5CH3氣體檢測(cè)管113SB HEPTANE 100-2000ppm,氣體檢測(cè)管可成功地用于快速檢測(cè)空氣中的有害氣體和煙霧,并且可用于測(cè)量工作場(chǎng)所的有害氣體和空氣中的煙霧含量濃度.廣泛應(yīng)用于冶金,石化,制藥,污水處理,造紙,消防等行業(yè)可燃?xì)怏w泄漏檢測(cè).作為日本GASTEC氣體檢測(cè)管的一級(jí)代理

更新時(shí)間:2025-01-15

在線(xiàn)留言
庚烷CH3(CH2)5CH3氣體檢測(cè)管113SB HEPTANE 100-2000ppm

庚烷CH3(CH2)5CH3氣體檢測(cè)管113SB HEPTANE 100-2000ppm

Tube 13SB

1. PERFORMANCE
1) Measuring range :100-2000 ppm
Number of pump strokes 1(100ml)
2) Sampling time :1.5 minutes/1 pump stroke
3) Detectable limit :15 ppm
4) Shelf life :2 years
5) Operating temperature :0~40℃
6) Temperature compensation :Necessary(See "TEMPERATURE CORRECTION TABLE")
7) Reading :Graduations printed on the tube are calibrated by Hexane at 1 pump stroke and
Heptane concentration is determined by using a conversion chart at 3 pump strokes.
8) Colour change :Orange→Yellowish green
2. RELATIVE STANDARD DEVIATION
RSD-low:10% RSD-mid.:10% RSD-high:5%
3. CHEMICAL REACTION
Chromium oxide is reduced.
CH3(CH2)5CH3+Cr6++H2SO4→Cr3+
4. CALIBRATION OF THE TUBE
GAS CHROMATOGRAPHY
5. INTERFERENCE AND CROSS SENSITIVITY
GAS To pump
1200
1400
1000
800
600
400
200
100
50
ppm
113SB C HEPTANE
Substance Interference ppm Coexistence
Alcohols Similar stain is produced. 6%
Ketones 〃〃〃
Esters 〃〃〃
Aromatic hydrocarbons The bottom of the discoloured layer
FIG.1,2 〃iisn gssta ainree dg itvoe Bn.lack and higher read-
(Pmaroarfefi nth haynd Cro3c)arbons 〃Higher readings are given.
0
500
 Benzene〔ppm〕?
FIG.1 Influence of Benzene
 Toluene〔ppm〕?
FIG.2 Influence of Toluene
Heptane indicating value 〔ppm〕
50 100 0
500
Heptane indicating value 〔ppm〕
50 100 150
13SB Tube reading (ppm)?
(300ml)?
Heptane concentration(ppm)?
1200
1400
1000
800
600
400
200
100
50 100
300
500
1000
1500
2000
TEMPERATURE CORRECTION TABLE
Scale True Concentration (ppm)
Readings 0℃ 10℃ 20℃ 30℃ 40℃
(ppm) (32°F) (50°F) (68°F) (86°F) (104°F)
2,000 - - 2,000 1,680 1,460
1,600 - 2,000 1,600 1,380 1,200
1,200 2,000 1,160 1,200 1,040 920
800 1,200 940 800 720 660
400 520 460 400 360 320
200 260 230 200 180 160
100 100 100 100 100 100

欧美xxxx色视频在线观看| 国产乱码精品一区二区三区四川人| 超级碰97直线国产| 边亲边脱边捏胸视频| 妻子6免费完整版电影| 日本三级片在线观看| 国产9色在线 | 日韩| 国产日产人妻精品精品| 久久精品这里热有精品| 成人AV片无码免费网站| 亚洲一区爱区精品无码| 东北妇女精品bbwbbw| 大码hiphop欧美胖mm短袖| 国产熟女高潮视频| 久久久久免费毛a片免费一瓶梅 | 久久精品九九热无码免贵| 久久综合伊人77777麻豆| av毛片无码不卡中文字幕| 亚洲av日韩av永久无码下载| 国产伦精品免编号公布| 无套内谢少妇毛片a片软件| xxxxx做受大片在线观看免费| 一区二区三区在线 | 欧| 午夜时刻免费入口| 欧美毛片免费观看| 成人奭片免费观看| 精品国产乱码久久久久久| 狠狠躁夜夜躁av网站中文字幕| 亚洲精品久久久久久久蜜桃| 凹凸精品熟女在线观看| 国产男女无遮挡猛进猛出| 18禁美女黄网站色大片免费观看| 久久国产avjust麻豆| 人鲁交yazhonghucxx| 国产国拍亚洲精品MV在线观看 | 日本在线 | 中文| 免费人成视频x8x8入口app| 成人a片产无码免费视频| 巨爆乳中文字幕巨爆区巨爆乳| 中国少妇xxxx做受| 国产伦孑沙发午休精品|