丰满岳乱妇在线观看中字无码,漂亮的保姆5在线观看中文,把我绑在床头上夹奶头视频,免费人做人爱完整版视频

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>102SD丙酮氣體檢測管102SD ACETONE 20-200ppm

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“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:2025-01-15

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

久久WWW免费人成看片入口| 国产深夜男女无套内射| 久久久久久伊人高潮影院| 人妻少妇精品久久久久久| a猛片免费播放网| 丰满少妇三级全黄| 一二三四在线观看免费高清| 久久人人爽爽爽人久久久| 中文字幕免费视频不卡| 女人和拘做受全程看视频| 无码高潮少妇毛多水多水免费| 无码中文字幕一区二区三区| 人善交videos欧美3d| 精品久久久久久久中文字幕| 亚洲色欲色欲www在线丝| 国产亚洲真人做受在线观看| 啊灬啊别停灬用力啊无码视频| 欧美又大粗又爽又黄大片视频| 自己在线观看免费高清| 久久综合99re88久久爱| 久久久久免费精品国产| 精品国产三级a在线观看| 2012国语高清完整版在线观看| 99草草国产熟女视频在线| 无码熟妇人妻AV影音先锋| 精品露脸国产偷人在视频| 成人h视频在线观看| 欧美大片va欧美在线播放| 荡公乱妇第1章方情95视频| 欧美videosdesexo| 老司机午夜私人影院免费| 国产精品亚洲精品日韩已满| 久久国语露脸国产精品电影| 欧美videosdesexo| 永久免费的网站在线观看| 国产精品毛片无码| 亚洲av人人澡人人爽人人夜夜 | 一个人在线观看的www片| 日韩色欲人妻无码精品av| 亚洲精品一区二区久久| 波多野结衣一区二区三区高清|