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(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>103SE進口二氧化硫SO2氣體檢測管103SE SULPHUR DIOXIDE 0.25-10ppm

進口二氧化硫SO2氣體檢測管103SE SULPHUR DIOXIDE 0.25-10ppm

簡要描述:

進口二氧化硫SO2氣體檢測管103SE SULPHUR DIOXIDE 0.25-10ppm,【檢知管法】(detectortubemethod)指用試劑浸泡過的載體顆粒裝在玻璃管中,當(dāng)被測空氣以一定速度抽過此管時,被測物質(zhì)與試劑發(fā)策顏色反應(yīng),然后根據(jù)顏色的深淺和色柱的長短,與標(biāo)準(zhǔn)色板或濃度標(biāo)尺進行比較,從而作出定性和半定量的分析方法。所用載體應(yīng)具畝下列性能:(1)化學(xué)惰性,即不與被測物質(zhì)和試劑起反應(yīng);(2)質(zhì)地牢固,并能粉碎成一定大小的顆粒;(3)白色多孔或表面粗糙的固體物質(zhì)。常用的載體有硅膠

更新時間:2025-01-16

在線留言
進口二氧化硫SO2氣體檢測管103SE SULPHUR DIOXIDE 0.25-10ppm

進口二氧化硫SO2氣體檢測管103SE SULPHUR DIOXIDE 0.25-10ppm

Tube 03SE
10 30 50 60 70 80 90
coefficient 0.9 0.95 1 1.1 of correction 1.2 1.3 1.4
1. PERFORMANCE
1) Measuring range :0.5-10 ppm 0.25-5 ppm
Number of pump strokes 1(100ml) 2(200ml)
2) Sampling time :1.5 minutes/1 pump stroke
3) Detectable limit :0.1 ppm(200ml)
4) Shelf life :1 year (Necessary to store in a refrigerated place ; 0~10℃)
5) Operating temperature :0~40℃
6) Humidity compensation :Necessary(See "R.H. CORRECTION COEFFICIENT TABLE")
7) Reading :Direct reading from the scale calibrated by 1 pump stroke
8) Colour change :Pink→Yellow
2. RELATIVE STANDARD DEVIATION
RSD-low:10% RSD-mid.:5% RSD-high:5%
3. CHEMICAL REACTION
By reacting with an Alkali, PH indicator is discoloured.
SO2+2NaOH→Na2SO3+H2O
4. CALIBRATION OF THE TUBE
PERMEATION TUBE METHOD
5. INTERFERENCE AND CROSS SENSITIVITY
10
9
8
7
6
5
4
3
2
1
0.5
ppm
SO2
GAS To pump
103SE SULPHUR DIOXIDE
Substance Interference ppm Coexistence
The top of discoloured layer
Nitrogen dioxide Pale pink stain is produced. 3 becomes un clear and higher
readings are given.
Hydrogen chloride 〃Higher readings are given.
(NOTE)
1)This detector tube is affected by abmbient relative humidity,therefore,it is necessary to compensate the reading of
gas detector tube with the following formula and correction confficient table.
Actual concentration=Reading Value(ppm)×Correction Coefficient
2)In case of 2 pump strokes, following formula is available for actual concentration.
Actual concentration=1/2×Reading value corrected with above formula
R.H. CORRECTION COEFFICIENT TABLE

亚洲欧洲日产v| 久久精品国产一区二区三| 久久久久免费精品国产| 强开少妇嫩苞又嫩又紧九色| 精品国产一区二区三区久久影院| 狠狠色噜噜狠狠亚洲av| 自拍偷在线精品自拍偷无码专区| 国产免费av在线观看| 香港AA三级久久三级| 日本爆乳无码一区二区漫画| 精品国产一区二区三区无码| 中文字幕在线亚洲精品| 成人国内精品久久久久影院| 伊人激情av一区二区三区| 米奇777四色精品人人爽| 日韩精品视频一区二区三区| 国产精品宾馆在线精品酒店| 日本人牲交bbbxxxx| 亚洲欧美一区二区成人片| 麻豆a片爽爽歪歪爽爽视频看看| 久久A级毛片免费观看| 国产激情无码一区二区APP| 亚洲午夜久久久久久噜噜噜| 国产精品成人无码久久久| 强开少妇嫩苞又嫩又紧九色| 国产婷婷成人久久av免费高清 | 久久久久夜夜夜精品国产| 日本妇人成熟a片免费现看| 成人丝袜激情一区二区| 国产精品久久人妻无码网站一区| 老师课后辅导乳揉搓h在线观看| 无码少妇精品一区二区免费动态| 亚洲一区二区女搞男| 国产成人一区二区三区影院| 国产麻豆精品一区二区三区V视界| 色-情-伦-理一区二区三区| 丁香色婷婷国产精品视频| 人妻熟妇乱又伦精品视频| 日本三级韩国三级欧美三级| 韩国三级在线观看久| 少妇又爽又刺激视频|