上海境宣實業(yè)有限公司
中級會員 | 第17年

17601355022

當前位置:上海境宣實業(yè)有限公司>>日本光明北川式氣體檢測管>>氣體快速檢測管>> 190U1,1,2,2-四溴乙烷CHBr2CHBr2氣體檢測管190U 4-100ppm

1,1,2,2-四溴乙烷CHBr2CHBr2氣體檢測管190U 4-100ppm

參  考  價面議
具體成交價以合同協(xié)議為準

產(chǎn)品型號190U

品       牌

廠商性質(zhì)代理商

所  在  地上海市

更新時間:2025-01-16 08:03:05瀏覽次數(shù):2326次

聯(lián)系我時,請告知來自 化工儀器網(wǎng)
1,1,2,2-四溴乙烷CHBr2CHBr2氣體檢測管,1,1,2,2-Tetrabromoethane 4-100ppm,別名:四溴化乙炔,英文名稱 1,1,2,2-Tetrabromoethane;Acetylene tetrabromide,分子式 C2H2Br4;Br2HCCHBr2,健康危害:對中樞神經(jīng)系統(tǒng)有抑制作用,對呼吸道有刺激作用,可引起肝、腎損害及單核細胞增多,可引起皮炎。

1,1,2,2-四溴乙烷CHBr2CHBr2氣體檢測管190U 4-100ppm

Tube 90U
0
30
40
50
20
10
Ethanol〔ppm〕?
FIG.1 Influence of Ethanol
Ethyl cellosolve indicating value 〔ppm〕
100 200 300 400 500
(300ml)? (100ml)?
0
300
400
500
200
100
1,1,1-Trichloroethane〔ppm〕?
FIG.2 Influence of 1,1,1-Trichloroethane
Ethyl cellosolve indicating value 〔ppm〕
100 200 300 400 500 600
(300ml)?
1. PERFORMANCE
1) Measuring range :5-500 ppm
Number of pump strokes 3(300ml)
2) Sampling time :4.5 minutes/3 pump strokes
3) Detectable limit :2 ppm
4) Shelf life :2 years
5) Operating temperature :10~35℃
6) Temperature compensation :Necessary(See "TEMPERATURE CORRECTION TABLE")
7) Reading :Direct reading from the scale calibrated by 3 pump strokes
8) Colour change :Yellow→Pale blue
2. RELATIVE STANDARD DEVIATION
RSD-low:10% RSD-mid.:10% RSD-high:10%
3. CHEMICAL REACTION
Chromium oxide is reduced.
C2H5OCH2CH2OH+Cr6++H2SO4→Cr3+
4. CALIBRATION OF THE TUBE
GAS CHROMATOGRAPHY
5. INTERFERENCE AND CROSS SENSITIVITY
GAS To pump
500
400
500
200
150
100
50
20
5
300ml
ppm
(White)
DEHUMIDIFIER
?? ?? ??
????
190U ETHYL CELLOSOLVE
Substance Interference Coexistence
Alcohols FIG.1 Similar stain is produced. Higher readings are given.
Ethers 〃〃
(Pmaroarfefi nth haynd Cro3c)arbons Whole reagent is changed to Brown. 〃
Aromatic hydrocarbons 〃〃
Esters 〃〃
Ketones 〃〃
Halogenated hydrocarbons FIG.2 〃〃
TEMPERATURE CORRECTION TABLE
Scale True Concentration (ppm)
Readings 10℃ 15℃ 20℃ 25℃ 30℃ 35℃
(ppm) (50°F) (59°F) (68°F) (77°F) (80°F) (95°F)
500 800 620 500 410 335 265
400 620 490 400 325 260 200
300 450 365 300 245 195 145
200 290 245 200 160 125 95
150 215 185 150 120 90 70
100 145 125 100 80 60 45
50 75 65 50 40 30 25
20 30 25 20 15 12 10
5 10 7 5 4 3 2

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