久久精品国产亚洲AV麻豆蜜芽,风流少妇A片一区二区蜜桃,国产精品久久久久精品三级卜 ,性欧美大战久久久久久久久

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(cè)管>氣體快速檢測(cè)管>198U日本KITAGAWA北川式甲基環(huán)己酮CH3C6H9O氣體檢測(cè)管198U 2-100ppm

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

簡(jiǎn)要描述:

日本KITAGAWA北川式甲基環(huán)己酮CH3C6H9O氣體檢測(cè)管198U METHYL CYCLOHEXANONE 2-100ppm,氣體檢測(cè)管的原理及使用,測(cè)量精度高。在檢測(cè)管含量標(biāo)度的確定上模擬了現(xiàn)場(chǎng)分析條件,采用不同
標(biāo)準(zhǔn)氣標(biāo)定,克服了化學(xué)分析中易帶入的方法誤差。同時(shí)減少了人為誤差。該方法準(zhǔn)確度誤差一般有效量程為15%~25%,PPM(10-6)數(shù)量級(jí)的測(cè)量有優(yōu)勢(shì)。

更新時(shí)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(cè)管198U 2-100ppm

日本KITAGAWA北川式甲基環(huán)己酮CH3C6H9O氣體檢測(cè)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

欧美人与劲物XXXXZ0OZ| 亚洲精品日韩一区二区小说| 国产午夜精品一二区理论影院| 99无码精品二区在线视频| 亚洲精品无码成人片久久不卡| JEALOUSVUE成熟| 欧美性猛交XXXX黑人猛交| 亚洲 暴爽 AV人人爽日日碰| 亚洲AV永久无码精品天堂动漫| 无套内谢少妇毛片A片| 国产国产国产国产系列| 国产精品扒开腿做爽爽爽A片| 久久人人爽爽爽人久久久| 色婷婷香蕉在线一区二区| 人妻丰满熟AV无码区HD| 变态捡到女婴H养成调教| 24小时免费看的视频哔哩哔哩| 无人视频免费观看免费直播视频 | 啦啦啦高清影视在线观看视频 | 公交车挺进朋友人妻的身体里| 性色AV蜜桃AV人妻无码| 三A级做爰片免费观看玉蒲团 | 久久AV无码精品人妻出轨| 美女扒开尿口让男人桶| 寡妇田前桃花多全文免费| 成人做爰高潮A片免费视频| 国产成人啪一区二区免费| 亚洲精品无码专区久久久| 精品人妻一区二区三区四区在线| 宝贝腿开大点我添添公口述视频 | 无码人妻一区二区三区| AAA少妇高潮大片免费看| 性少妇JEALOUSVUE成熟| 亚洲色偷偷综合亚洲AV78| 无码国产一区二区三区四区公司| 粗大猛烈进出高潮视频大全| 一本加勒比HEZYO无码人妻| 奶头又大又白喷奶水| 边亲边脱边捏胸视频| 男女啪啪吃奶GIF动态图| 好大好硬好深好爽想要 叫床|