精品国产天线2019,色综合久久无码五十路人妻,亚洲熟悉妇女XXX妇女AV,亚洲H在线播放在线观看H

產品列表PRODUCTS LIST

首頁>產品中心>日本光明北川式氣體檢測管>氣體快速檢測管>198U日本KITAGAWA北川式甲基環(huán)己酮CH3C6H9O氣體檢測管198U 2-100ppm

日本KITAGAWA北川式甲基環(huán)己酮CH3C6H9O氣體檢測管198U 2-100ppm

簡要描述:

日本KITAGAWA北川式甲基環(huán)己酮CH3C6H9O氣體檢測管198U METHYL CYCLOHEXANONE 2-100ppm,氣體檢測管的原理及使用,測量精度高。在檢測管含量標度的確定上模擬了現(xiàn)場分析條件,采用不同
標準氣標定,克服了化學分析中易帶入的方法誤差。同時減少了人為誤差。該方法準確度誤差一般有效量程為15%~25%,PPM(10-6)數(shù)量級的測量有優(yōu)勢。

更新時間:2025-03-11

在線留言
日本KITAGAWA北川式甲基環(huán)己酮CH3C6H9O氣體檢測管198U 2-100ppm

日本KITAGAWA北川式甲基環(huán)己酮CH3C6H9O氣體檢測管198U METHYL CYCLOHEXANONE 2-100ppm

Tube 98U
1. PERFORMANCE
1) Measuring range :2-100 ppm
Number of pump strokes 3(300ml)
2) Sampling time :4.5 minutes/3 pump strokes
3) Detectable limit :1 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 3 pump strokes
8) Colour change :Yellow→Pale blue
2. RELATIVE STANDARD DEVIATION
RSD-low:10% RSD-mid.:10% RSD-high:5%
3. CHEMICAL REACTION
Chromium oxide is reduced.
CH3C6H9+Cr6++H2SO4→Cr3+
4. CALIBRATION OF THE TUBE
GAS CHROMATOGRAPHY
5. INTERFERENCE AND CROSS SENSITIVITY
2
10
20
40
60
80
100
ppm
300ml
GAS To pump
DEHUMIDIFIER
(White)
198U METHYL CYCLOHEXANONE
Substance Interference Coexistence
Aliphatic hydrocarbons Whole reagent is changed to Pale The accuracy of readings is not
brown. affected.
Aromatic hydrocarbons 〃〃
Halogenated hydrocarbons 〃〃
Alcohols FIG.1 Similar stain is produced. Higher readings are given.
Esters Pale ringed stain is produced near The accuracy of readings is not
the bottom of the reagent. affected.
0
70
100
30
50
Ethanol〔ppm〕?
FIG.1 Influence of Ethanol
Methyl cyclohexanone
indicating value 〔ppm〕
50 100 150
10
Coexistence
Interference
TEMPERATURE CORRECTION TABLE
Scale True Concentration (ppm)
Readings 10℃ 20℃ 30℃ 40℃
(ppm) (50°F) (68°F) (86°F) (104°F)
100 130 100 80 66
80 105 80 65 52
60 80 60 48 36
40 54 40 30 22
20 26 20 14 10
10 14 10 7 5

一本一道波多野结衣AV一区| 亚洲啪AV永久无码精品放毛片| 四虎成人精品国产永久免费无码| 人人狠狠综合久久88成人| 亚洲AV在线观看| 亚洲国产成人精品无码区在线网站| 久久亚洲私人国产精品va| 色精阁久艾草国产WWW| 99热精品久久只有精品| 国产色视频一区二区三区| 亚洲AV综合色区无码一区爱AV| 国产97色在线 | 亚洲| AV国产剧情MD精品磨豆| 久久久国产打桩机| 亚洲日韩精品无码一区二区三区| 国产成人aaaaa级毛片| 久久久久亚洲精品中文字幕| 久久久久人妻精品区一三寸| 亚洲视频在线观看| 亲子乱AV视频一区二区| 男男啪啪激烈高潮cc漫画免费 | 国产欧美一区二区三区| 亚洲乱码av中文一区二区| 久久久久久久综合色一本| 精品久久8x国产免费观看| 国产在线av一区二区麻豆董小宛| 久久国产加勒比精品无码| 亚洲国产精品久久久久婷婷老年 | 亚洲精品色情app在线下载观看 | 亚洲av无码一区东京热| 风流少妇a片一区二区蜜桃| 久久久国产精品免费A片分环卫| 日韩精品一区二区三区| 亚洲精品tv久久久久久久久久 | 国产亚洲精品久久久久婷婷图片| 翁止熄痒禁伦短文合集免费视频 | 无码av动漫精品一区二区免费| 在线观看大片免费播放器| 亚洲欧美婷婷五月色综合| 久久久99久久久国产自输拍| 亚洲精品tv久久久久久久久久|