欧美 国产 日本,无码高清抽插,欧美美女鸡鸡网站,18禁看美女的胸久久

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管>氣體快速檢測管>113SB異丁烷(CH3)3CH氣體檢測管113SB ISOBUTANE 50-1200ppm

異丁烷(CH3)3CH氣體檢測管113SB ISOBUTANE 50-1200ppm

簡要描述:

異丁烷(CH3)3CH氣體檢測管113SB ISOBUTANE 50-1200ppm,2-甲基丙烷 健康危害: 具有弱刺激和麻醉作用。急性中毒:主要表現(xiàn)為頭痛、頭暈、嗜睡、惡心、酒醉狀態(tài),嚴重者可出現(xiàn)昏迷。慢性影響:出現(xiàn)頭痛、頭暈、睡眠不佳、易疲倦。

更新時間:2025-07-02

發(fā)郵件給我們:554328895@qq.com

分享到: 1
在線留言
異丁烷(CH3)3CH氣體檢測管113SB ISOBUTANE 50-1200ppm

異丁烷(CH3)3CH氣體檢測管113SB ISOBUTANE 50-1200ppm

Tube 13SB
1. PERFORMANCE
1) Measuring range :50-1,000 ppm
Number of pump strokes 1(100ml)
2) Sampling time :1.5 minutes/1 pump stroke
3) Detectable limit :10 ppm
4) Shelf life :2 years
5) Operating temperature :0~40℃
6) Reading :Graduations printed on the tube are calibrated by Hexane at 1 pump stroke
and Pentane concentration is determined by using a conversion chart.
7) Colour change :Orange→Yellowish green
2. RELATIVE STANDARD DEVIATION
RSD-low:10% RSD-mid.:10% RSD-high:5%
3. CHEMICAL REACTION
CH3(CH2)3CH3+Cr6++H2SO4→Cr3+
4. CALIBRATION OF THE TUBE
GAS CHROMATOGRAPHY
5. INTERFERENCE AND CROSS SENSITIVITY
250
400
600
800
1000
1200
1400
100
50
ppm
GAS To pump
113SB C PENTANE
0
500
Benzene〔ppm〕?
FIG.1 Influence of Benzene
Pentane indicating value 〔ppm〕
50 100 0
500
Toluene〔ppm〕?
FIG.2 Influence of Toluene
Pentane indicating value 〔ppm〕
50 100 150
Pentane concentration(ppm)?
13SB Tube reading(ppm)?
(100mR)?
50
100
200
400
600
800
1000
1200
1400
50
100
200
400
600
800
1000
Substance Interference ppm Coexistence
Alcohols Similar stain is produced. 6% Higher readings are given.
Ketones 〃〃〃
Esters 〃〃〃
Aromatic hydrocarbons 〃The bottom of the discoloured layer is stain-
FIG.1,2 ed to Black and higher readings are given.
Paraffin (morefi nth Haynd Cro3)carbons 〃Higher readings are given.

99久久婷婷国产综合精品| www.中文字幕| 99久久精品无码一区二区毛片 | 欧美精品一区在线发布| 亚洲欧美日本国产99久久久| 最近中文字幕大全免费版在线| 欧美日韩一卡2卡三卡4卡 乱码欧美孕交| 少妇一级淫片50分钟| 国产手机在线国内精品| 久久99热只有频精品6国语 | 岳阳县| 熟女少妇内射日韩亚洲| 波多野结av衣东京热无码专区| 久久精品99无色码中文字幕| 久久99精品久久久久久婷婷2021| 亚洲AV乱码一区二区三区香蕉| 缙云县| 四虎影视网址| 性网址| free性亚洲| 成人欧美一区二区三区| 欧美牲交黑粗硬大| 69成人免费视频无码专区| 色偷偷一区二区无码视频| 波多野结衣美乳人妻HD电影欧美| 舒兰市| 少妇xxxx| 婷婷色网站| 色五婷婷| 欧美激情网址| 最近最新日本中文字幕| 久久久久久久久久国产精品免费 | 午夜福利www| 亚洲激情图| 亚洲AV一二三区成人影片| 国产精品久久久久电影网| 亚洲国产精品久久无码中文字| 女人爽到高潮视频免费直播| 国产无人区卡一卡二卡三乱码| 四虎www永久在线精品| 色综合伊人丁香五月桃花婷婷 |