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

日本簧片在线观看| 阳茎伸入女人阳道视频免费| 亚洲国产精品久久无码中文字蜜桃| 久久亚洲av成人无码电影| 日本疯狂爆乳xxxx| 亚洲线精品一区二区三区| 国产伦精品一区二区三区免费 | 中文字幕丰满乱子伦无码专区| 欧美疯狂XXXXBBBB喷潮| 国产精品成人精品久久久| 亚洲av无码一区二区三区乱子伦| (无码视频)在线观看| 国产色婷亚洲99精品av在| 亚洲综合AV一区二区三区不卡| 菠萝蜜视频网站| 欧美大成色WWW永久网站婷| 国产尤物AV尤物在线观看| 亚洲精品无码mv在线观看| 无码国产伦一区二区三区视频| jzzijzzij亚洲乱熟无码| 亚洲日韩一区二区三区| 免费xxxx大片| 久久九九精品99国产精品| 亚洲色婷婷久久精品av蜜桃| 免费看片的播放器| 邻居少妇张开双腿让我爽一夜| 午夜理论2019理论无码| 精品国产免费一区二区三区| 亚洲中文字幕无码一区在线| 办公室秘书无码激情AV| 国产综合久久久久久鬼色| 精品久久久久中文字幕| 亚洲av成人精品网站在线播放| 国产乱人偷精品人妻a片| 无敌神马在线观看免费完整一| 欧洲黑大粗无码免费| 欧美激情AAAAAAAA片| 97成人碰碰久久人人超级碰OO| 国产手机精品一区二区| 99久久久免费精品国产| 99久久国产福利自产拍|