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

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

簡要描述:

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

更新時間:2025-01-15

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

人人妻人人爽人人澡欧美一区| 精品一区二区三区无码免费视频| 日本a片无码中文字幕电影| 国产白嫩护士被弄高潮| 四虎成人精品国产永久免费无码| 国产精品乱码一区二区三区| 人人人妻人人澡人人爽欧美一区| 天下第一社区视频www国语| 荫蒂添的好舒服视频| 欧美又大粗又爽又黄大片视频| 卡一卡2卡3卡精品网站| 精人妻无码一区二区三区| 狠狠色婷婷久久一区二区| √天堂资源中文www| 十大禁用的免费游戏手游中文| 亚洲成av人片天堂网无码| 97SE亚洲国产综合自在线| 蜜臀精品无码AV在线播放| 久久99精品久久久久久野外| 久久夜色精品国产嚕嚕亚洲av| 香蕉欧美成人精品A∨在线观看 | 亚洲av无码一区二区三区乱子伦| 妻子4免费完整版中文版| 成人免费毛片aaaaaa片| 无码人妻精品一区二区三区东京热| 丰满岳乱妇在线观看| 欧美又大又粗毛片多喷水| 99蜜桃在线观看免费视频网站 | 亚洲熟妇少妇任你躁在线观看无码| 中国熟妇色xxxx欧美老妇多毛| 无码熟妇人妻AV在线影片最多 | 免费a级毛片做爰片在线| 在线精品亚洲一区二区| 草莓视频caomei888| 免费无码AV片在线观看潮喷| 午夜爱爱爱爱爽爽爽视频网站| 国产后入清纯学生妹| 寂寞的少妇2乱理片| 久久www成人_看片免费不卡| 一本精品中文字幕在线| 2012中文字幕|