免费无码成人AV电影在线播放,精品露脸国产偷人在视频,国产成人免费视频,少妇高潮a片无套内谢麻豆传

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

激情综合亚洲色婷婷五月app| 花蝴蝶免费直播视频在线观看| 久久久久久AV无码免费看大片| 日本高清视频在线www色| 一个人看的免费视频www| 宝贝小嫩嫩好紧好爽h在线视频 | 亚洲综合欧美在线一区在线播放| 人妻献身系列第54部分| 国产亚洲av综合人人澡精品 | 99精品国产兔费观看久久| 国产精品人人做人人爽| 100国产精品人妻无码| 野花日本大全免费观看版动漫 | 久久碰人人玩国产精品| 亚洲欧美一区二区三区在线| 欧美精品黑人粗大视频| 欧美最猛性xxx| 最近韩国电影高清免费观看hd| 人与嘼AV免费| 精品人妻码一区二区三区| 日本精品久久久久中文字幕| 国产精品成人无码免费| 精品国产AⅤ无码一区二区| 少妇下蹲露大唇无遮挡| 精品久久久久久亚洲精品| 日本大但人文艺术| 久草视频新免费| 麻豆国产尤物av尤物在线观看| 在线天堂中文在线资源网| 色偷偷噜噜噜亚洲男人| 男人和女人亲吻视频| 伊人热热久久原色播放www| 国产午夜福利在线观看红一片| 久久亚洲av无码西西人体| 丰满人妻一区二区三区无码av| 东京热HEYZO无码专区 | 久久国产欧美国日产综合抖音 | 亚洲6080yy久久无码国产| 久久久久人妻精品一区三寸| 色偷偷国色天香在线观看免费视频| 午夜香吻高清观看视频在线|