www.cgongxi.com-国产日产久久高清欧美一区WW,国产在线观看无码免费视频,国产日产久久高清欧美一区WW,国模欢欢炮交啪啪150P

產(chǎn)品列表PRODUCTS LIST

首頁(yè)>產(chǎn)品中心>日本光明北川式氣體檢測管>氣體快速檢測管>111U正癸烷CH3(CH2)8CH3氣體檢測管111U n-Decane 5-90ppm

正癸烷CH3(CH2)8CH3氣體檢測管111U n-Decane 5-90ppm

簡(jiǎn)要描述:

111U ETHYL ACETATE (+)CH3(CH2)8CH3 (正)癸烷;正十烷;n-Decane 5-90ppm,乙酸乙酯氣體檢測管111U,正癸烷CH3(CH2)8CH3氣體檢測管111U n-Decane 5-90ppm,但是,傳統上依靠人鼻嗅辨為主要環(huán)節的“三點(diǎn)式臭袋法",存在受個(gè)體因素影響大(鼻子的嗅覺(jué)疲勞、易受有毒臭氣傷害等)和效率不高(需7人一組多輪嗅辨)的弱點(diǎn),實(shí)際操作比較繁瑣。

更新時(shí)間:2024-07-14

在線(xiàn)留言
正癸烷CH3(CH2)8CH3氣體檢測管111U n-Decane 5-90ppm

正癸烷CH3(CH2)8CH3氣體檢測管111U n-Decane 5-90ppm

Tube 11U
1. PERFORMANCE
1) Measuring range :10-1,000 ppm
Number of pump strokes 1(100mL)
2) Sampling time :1.5 minutes / 1 pump stroke
3) Detectable limit : 5 ppm
4) Shelf life :2 years
5) Operating temperature :10~40℃
6) Temperature compensation :Necessary (See "TEMPERATURE CORRECTION TABLE" )
7) Reading :Direct reading from the scale calibrated by 1 pump stroke
8) Colour change :Yellow→Brown
2. RELATIVE STANDARD DEVIATION
RSD-low :10 % RSD-mid.:10 % RSD-high :5%
3. CHEMICAL REACTION
Chromium oxide is reduced.
CH 3CO 2C 2H 5+Cr 6++H 2SO 4→Cr 3+
4. CALIBRATION OF THE TUBE
GAS CHROMATOGRAPHY
5. INTERFERENCE AND CROSS SENSITIVITY
GAS To pump
111U ETHYL ACETATE
TEMPERATURE CORRECTION COEFFICIENT TABLE
Scale Correction Coefficient (at 20℃)
Readings 10 ℃ 15 ℃ 20 ℃ 25 ℃ 30 ℃ 35 ℃ 40℃
(ppm) (50 °F) (59°F) (68°F) (77 °F) (86°F) (95°F) (104°F )
1,000 1.33 1.17 1.0 0.87 0.74 0.64 0.53
Substance Interference Coexistence
Alcohols Similar stain is produced. Higher reading are given.
Esters 〃〃
Ketones 〃〃
Aromatic hydrocarbons 〃〃
Whole reagent is discoloured
It the top of brown stain is
Paraffin hydrocarbons clear, the accuracy of
Pale brown.
readings is not affected.
Halogenated hydrocarbons
〃〃
FIG.1
0
200
400
600
800
1000
Trichloroethylene 〔ppm〕
FIG.1 Influence of Trichloroethylene
E thyl acetate indicating value 〔ppm 〕
100 200 300
800 1.38 1.19 1.0 0.86 0.73 0.63 0.53
600 1.40 1.20 1.0 0.86 0.72 0.63 0.53
400 1.40 1.20 1.0 0.85 0.70 0.58 0.46
200 1.40 1.20 1.0 0.84 0.68 0.55 0.42
100 1.50 1.25 1.0 0.81 0.62 0.48 0.33
50 1.50 1.25 1.0 0.77 0.54 0.43 0.32
30 1.50 1.25 1.0 0.77 0.53 0.42 0.30
10 1.50 1.25 1.0 0.75 0.50 0.40 0.30
www.r-biopharm.com.cn
www.r-biopharm.com.cn

墨脱县| 班玛县| 万州区| 若羌县| 江门市| 枣阳市| 无锡市| 南开区| 独山县| 漳浦县| 汉中市| 衡东县| 西华县| 大洼县| 汉阴县| 乐安县| 东平县| 平远县| 通化市| 湟中县| 绥滨县| 滨州市| 内黄县| 新化县| 松桃| 宁波市| 虎林市| 菏泽市| 汾西县| 朝阳县| 望奎县| 吕梁市| 白朗县| 济源市| 哈巴河县| 凤山县| 汉中市| 英吉沙县| 桃园市| 灵山县| 武义县|