性生交大片免费看淑女出招,日韩精品一区二区亚洲AV,娇喘抽搐高潮喷水A片免费观看,亚洲AV永久无码精品三区在线

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正己烷CH3(CH2)4CH3氣體檢知管113SB n-HEXANE 50-1400ppm

正己烷CH3(CH2)4CH3氣體檢知管113SB n-HEXANE 50-1400ppm

簡(jiǎn)要描述:

正己烷CH3(CH2)4CH3氣體檢知管113SB n-HEXANE 50-1400ppm,侵入途徑:吸入、食入、經(jīng)皮吸收。健康危害:本品有麻醉和刺激作用。長(zhǎng)期接觸可致周圍神經(jīng)炎。急性中毒:吸入高濃度本品出現(xiàn)頭痛、頭暈、惡心、共濟(jì)失調(diào)等,重者引起神志喪失甚至死亡。對(duì)眼和上呼吸道有刺激性。

更新時(shí)間:2024-12-19

在線留言
正己烷CH3(CH2)4CH3氣體檢知管113SB n-HEXANE 50-1400ppm

正己烷CH3(CH2)4CH3氣體檢知管113SB n-HEXANE 50-1400ppm

Tube 13SB

1. PERFORMANCE
1) Measuring range :50-1400 ppm
Number of pump strokes 1(100ml)
2) Sampling time :1.5 minutes/1 pump stroke
3) Detectable limit :5 ppm
4) Shelf life :2 years
5) Operating temperature :0~40℃
6) Temperature compensation :Necessary(See "TEMPERATURE CORRECTION TABLE")
7) Reading :Direct reading from the scale calibrated by 1 pump stroke
8) Colour change :Orange→Yellowish green
2. RELATIVE STANDARD DEVIATION
RSD-low:10% RSD-mid.:5% RSD-high:5%
3. CHEMICAL REACTION
Chromium oxide is reduced.
CH3(CH2)4CH3+Cr6++H2SO4→Cr3+
4. CALIBRATION OF THE TUBE
GAS CHROMATOGRAPHY
5. INTERFERENCE AND CROSS SENSITIVITY
GAS To pump
1400
1200
1000
800
600
400
200
100
50
ppm
????
????
113SB n-HEXANE
Substance Interference Coexistence
Aromatic hydrocarbons FIG.1,2 Black stain is produced. Higher readings are given.
Paraffin (morefi nth haynd Cro3c)arbons Similar stain is produced. 〃
In presence of Alcohols, Ketones or Esters less than 6%, the accuracy of readings is not affected.
0
500
 Benzene〔ppm〕?
FIG.1 Influence of Benzene
n-Hexane indicating value 〔ppm〕
50 100 0
500
 Toluene〔ppm〕?
FIG.2 Influence of Toluene
n-Hexane indicating value 〔ppm〕 100 150 50
TEMPERATURE CORRECTION TABLE
Scale True Concentration (ppm)
Readings 0℃ 10℃ 20℃ 30℃ 40℃
(ppm) (32°F) (50°F) (68°F) (86°F) (104°F)
1,400 1,730 1,530 1,400 1,270 1,180
1,200 1,470 1,320 1,200 1,090 1,010
1,000 1,230 1,100 1,000 910 840
800 980 870 800 720 670
600 740 660 600 550 500
400 470 430 400 360 330
200 220 210 200 180 170

掀开奶罩边躁狠狠躁视频0000| 日韩精品久久久久久免费| 无码人妻丰满熟妇区96| 无码无遮挡刺激喷水视频| 久久精品A一国产成人免费网站| 色狠狠AV老熟女| 将军脔到她哭H粗话H| 免费观看丰满少妇做受| 当着夫的面被夫上司玩弄| 男女做爰猛烈啪啪吃奶动A| 无码专区永久免费AV网站| 婷婷俺也去俺也去官网| 欧美综合色婷婷欧美综合五月| 边摸边吃奶边做爽免费视频99| 乱人伦XXXX国语对白| 欧美激情精品久久久久久| 色综合久久久久久久久五月| 疯狂的交换1—6真实交换3和2| 亚洲精品无码一区二区| 国产XXXX做受视频国语对白L| 久久精品一区二区三区中文字幕| 美女黄网站永久免费观看网站| 3D全彩无码啪啪本子全彩| 亚洲国产AV一区二区三区| 女教师的凌脣教室在线| WC凹凸撒尿间谍女厕HD| JAPAN高清日本乱XXXXX| 强行剥开两边虐花蒂玩弄| 久久亚洲AV无码精品色午夜麻豆| 欧美性XXXXX极品少妇| 小13箩利洗澡无码视频网站免费| 午夜精品久久久久久| 中国人体棚拍室内摄影| 又粗又硬又大时间又持久| 国产真实乱人偷精品人妻| 国产又黄又猛又粗又爽的A片动漫| 娇妻借朋友高H繁交H| 国产舌乚八伦偷品W中| 玩小雪跪趴把腿分到最大影视| 国产精品久久久久久久久电影网| 变态另类玩孕妇临盆|