成人毛片无码一区二区三区,亚洲精品成人无码中文毛片,亚洲国产精品尤物yw在线观看,人妻互换精品一区二区

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

特黄特色大片免费播放器图片| 成人精品视频一区二区三区不卡 | 脱了内裤猛烈进入a片视频免费| 亚洲国产精品第一区二区| 少妇bbbb躁少妇bbbb躁| 欧美成人片一区二区三区| 久久黄色视频| 白嫩少妇bbw撒尿视频| 18禁黄久久久aaa片| 亚洲av无码乱码国产精品久久| 99国产精品成人av片免费看 | 好大好硬好爽18禁视频免费| 色欲一区二区三区精品a片| 麻豆免费视频网站入口在线观看| 色欲av亚洲波多野结衣| 在线日本v二区不卡| .精品久久久麻豆国产精品| 免费120秒体验试看5次| 国产精品主播一区二区三区| 男女做爰猛烈吃奶摸视频 | 麻豆传煤入口免费进入2023| 日韩精品一区二区三区色欲AV| 亚洲 自拍 另类 欧美 综合| 性欧美老妇607080免费| 狼友AV永久网站免费观看| 熟妇人妻中文av无码| 国产午夜片无码区在线播放| 国产精品久久无码一区二区三区网| 成人h无码日本动漫在线观看| 肉浦团在线观看| 少妇粉嫩小泬喷水视频| 精品无码一区二区三区爱欲| g片男a同志y免费网站| 亚洲国产成人精品无码区在线秒播| 国产日产久久高清欧美一区| 久久香蕉国产线熟妇人妻| 久久伊人五月丁香狠狠色| 18videosex性欧美69| 青春草无码精品视频在线观看| 性无码一区二区三区在线观看 | 久久精品国产精品国产精品污|