免费无码成人AV电影在线播放,精品露脸国产偷人在视频,国产成人免费视频,少妇高潮a片无套内谢麻豆传

產(chǎn)品列表PRODUCTS LIST

丙酮檢知管102SD ACETONE CH3COCH3 20-5000ppm

簡(jiǎn)要描述:

丙酮檢知管102SD ACETONE CH3COCH3 20-5000ppm,

更新時(shí)間:2025-11-29

在線留言
丙酮檢知管102SD ACETONE CH3COCH3 20-5000ppm

丙酮檢知管102SD ACETONE CH3COCH3 20-5000ppm

Tube 02SD
1. PERFORMANCE
1) Measuring range :125-5,000 ppm 50-2,000 ppm 20-800 ppm
Number of pump strokes 1 / 2(50mL) 1(100mL ) 2(200mL)
2) Sampling time :1.5 minutes / 1 pump stroke
3) Detectable limit :10 ppm(200mL)
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 :Yellow→Dark brown
2. RELATIVE STANDARD DEVIATION
RSD-low :10 % RSD-mid.:5 % RSD-high :5%
3. CHEMICAL REACTION
Chromium oxide is reduced.
CH 3COCH 3+Cr6++H 2SO 4→Cr3+
4. CALIBRATION OF THE TUBE
GAS CHROMATOGRAPHY
5. INTERFERENCE AND CROSS SENSITIVITY
102SD ACETONE
Substance Interference Coexistence
Alcohols Brown stain is produced. Higher readings are given.
Other Ketones 〃〃
Esters 〃〃
Aromatic hydrocarbons 〃〃
Paraffin hydrocarbons
If the top of discoloured
layer is possible to read,
the accuracy of readings is
not affected.

(more than C )
Halogenated hydrocarbons 〃〃
(NOTE)
In case of 1 / 2 or 2 pump strokes, following formula is available for the actual concentration.
1 / 2 stroke:s Actual concentration = 2.5 ×Temperature corrected value
2 stroke:s Actual concentration = 0.4 ×Temperature corrected value
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 3,500 2,800 2,000 1,600 1,300
1,500 2,750 2,000 1,500 1,250 1,000
800 1,300 1,000 800 700 600
600 1,000 800 600 550 450
400 650 500 400 350 300
200 300 200 200 200 200
100 200 100 100 100 100
:
:
50 100 50 50 50 50
1,000 1,670 1,250 1,000 850 700
GAS To pump
DEHUMIDIFIER
(White)
3
www.r-biopharm.com.cn

中文字幕乱码人妻一区二区三区| 新婚人妻扶着粗大强行坐下| 亚洲AV永久无码老湿机| 精品人妻伦九区久久aaa片69| 无套内谢少妇毛片a片| 久久久久久亚洲精品无码| 极品少妇大喷潮21p| 国精品人妻无码一区二区三区牛牛| 亚洲色欲久久久综合网东京热 | 欧美精品色情特级a片| 国产精品久久久久av福利动漫| 亚洲精品无码久久| 欧美巨大gay| 久久免费的精品国产V∧| 免费午夜爽爽爽www视频十八禁| 人妻少妇精品专区性色av| 女学生处破外女出血视频| 久久精品国产99国产精偷| 日本孕妇大胆孕交无码| 中文WWW新版资源在线| 久久99精品久久久久久野外| 亚州av综合色区无码一区| 免费无遮挡无码永久在线观看视频| 寂寞少妇在哪个软件能约到| 亚洲熟妇av一区二区三区漫画| 国产亚洲日韩一区二区三区| 久久婷婷五月综合色精品| 色综合久久久久久久久久| 亚洲区色情区激情区电影| 国产av夜夜欢一区二区三区| 精品少妇人妻AV免费久久久| 国产无套白浆一区二区| 久久99热久久99精品| 高潮毛片无遮挡高清免费视频| 国产精品无码一区二区在线看| 无码潮喷A片无码高潮| 久久天天躁狠狠躁夜夜avapp| 久久精品国产色蜜蜜麻豆| www夜插内射视频网站| 色哟哟网站在线观看| 国产情侣一区二区|