来一水AV@lysav|中文字幕一区二区人妻久久精品 |亚洲第一综合天堂另类专|成年免费视频黄网站在线观看

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:2024-12-10

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

色99亚洲欧美日韩| 国语自产少妇精品视频| 天天爽夜夜爽人人爽,qc| 黑人巨大Vide0S| 精品亚洲aⅴ在线观看 | 中文字幕亚洲欧美国产日韩| 久久久久久久久久久久中文字幕 | 99久久无色码中文字幕免费| 欧美日韩亚洲图片中文字幕| 久久亚洲国产精品综合| CAOPOREN免费精品视频| 亚洲午夜精品在线观看| 欧美XXXXX高潮喷水麻豆| 久久无码专区国产精品S| 欧美精品一区二区三区久久久竹菊 | 久久久久久国产精品免费免费男同| 欧美狂野另类XXXXOOOO| 老熟女HDXX老小配| 精品人妻码一区二区三区| 国产免费又色又爽粗视频| 波多野结衣456| 国产精品久久久久久人妻精品| 成人亚洲av网站在线看aaaa| 人色偷偷色AV噜噜狠狠99| 中文字幕乱码人妻一区二区三区| 国产国语老龄妇女a片| 久久久久久国产精品免费免费| 亚洲国产成人高清精品| 日韩精品一区二区亚洲AV| 午夜天堂精品久久久久| 亚洲人精品午夜射精日韩| 亚洲精品国产精品制服丝袜| 日本一区二区视频诱惑| 费A级毛片无码免费视频120软件| 成人午夜高潮免费视频| 中文字幕久久综合伊人| 亚洲一码和欧洲二码的尺码区别| 免费无码一线A片AAA片 | 国产欧美日韩黑人一区二区三区四区 | 一区二区久久精品99精品| 中国亚洲视频一区二区|