亚洲中文字幕啪啪一区二区,看亚洲欧洲在线视频,国产福利不卡在线视频,欧美日韩一区二区人妻

產(chǎn)品列表PRODUCTS LIST

丙酮氣體檢測管102SD ACETONE 20-200ppm

簡要描述:

丙酮氣體檢測管102SD ACETONE (-) p-Cymene CH3C6H4CH(CH3)2 20-200ppm,環(huán)境監(jiān)測站近日從我公司購入一套惡臭氣體應(yīng)急檢測箱,用于檢測各種場合大氣中的惡臭氣體和臭氣濃度。這一儀器將替代國標(biāo)“三點式臭袋法",其檢測效果等同于“三點式臭袋法",而檢測效率將獲明顯提升。

更新時間:2025-01-08

發(fā)郵件給我們:554328895@qq.com

分享到: 1
在線留言
丙酮氣體檢測管102SD ACETONE 20-200ppm

丙酮氣體檢測管102SD ACETONE 20-200ppm

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

一区二区三区精品亚洲视频| 亚洲免费电影一区二区| 国产精品一区二区三区三级天堂| 久久精品水蜜挑AV综合天堂| 豆国产98在线观看亚洲| 国产又大又长又粗又猛视频| 国产v亚洲v天堂无码| 日本电影三级一区二区三区| 三点水一个色是什么字| 国产线精品视频在线观看| 亚洲线日本一区二区三区| 欧美日韩一区二区三区自拍| 久久久久国产精品三级蜜奴| 色欲aⅴ亚洲情无码AV蜜桃| 国产一二三区亚洲欧美| 高清国产午夜精品久久久久久| 99亚洲国产精品18久久| 精品国产免费一区二区久久| 国产日韩欧美老人啪啪| 国产三级在线免费播放| 成人午夜日韩看片后入| 国产白嫩精品久久久| 日韩精品一区二区三区高清免费| 日本视频高清一区二区| av中国一区二区三区| 亚洲av久久一区二区| 亚洲欧美日韩亚洲欧美| 欧美色到久久88综合亚洲精品| 日本在线观看精品综合| 国产精品观看不卡视频| 国产黄色三级三级三级看三级| 五月婷婷六月丁香综合小说| 午夜影院网站免费观看| 西野翔人妻中文字幕电影| 91精品一区二区三区蜜臀| 欧美一级大片免费观看视频| 国产好大对白露脸高潮| 日韩码一码二码三码区别| 国产一区二区精品久| 久久久久国产精品熟女蜜臀| 国产精品一区二区久久hs|