亚洲中文久久精品无码WW16,亚洲国产精品久久久久爰色欲,人人妻人人澡人人爽欧美一区九九,亚洲码欧美码一区二区三区

上海境宣實業有限公司
中級會員 | 第16年

17601355022

當前位置:上海境宣實業有限公司>>日本光明北川式氣體檢測管>>氣體快速檢測管>> 111U乙酸乙酯氣體檢測管111U ETHYL ACETATE 20-200ppm

乙酸乙酯氣體檢測管111U ETHYL ACETATE 20-200ppm

參  考  價面議
具體成交價以合同協議為準

產品型號111U

品       牌

廠商性質代理商

所  在  地上海市

更新時間:2024-11-20 10:00:42瀏覽次數:1197次

聯系我時,請告知來自 化工儀器網
乙酸乙酯111U ETHYL ACETATE (+) C10H18 萘烷 十氫化萘Decahydronaphthalene 十氫萘,20-200ppm,乙酸乙酯氣體檢測管111U ETHYL ACETATE 20-200ppm,臭氣監測是上海作為重化工區的一項*的環境監測項目。2005年,上海環保在省內*建立了惡臭嗅辨項目,以人鼻嗅辨為主要環節對臭氣濃度進行檢測,從而*長期以來臭氣監測領域的空白。

乙酸乙酯氣體檢測管111U ETHYL ACETATE 20-200ppm

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

會員登錄

×

請輸入賬號

請輸入密碼

=

請輸驗證碼

收藏該商鋪

X
該信息已收藏!
標簽:
保存成功

(空格分隔,最多3個,單個標簽最多10個字符)

常用:

提示

X
您的留言已提交成功!我們將在第一時間回復您~
撥打電話
在線留言