中文无码一区二区不卡αv_国内精品久久久久久影院_亚洲一区精品无码色成人_免费观看黄频视_18禁美女黄网站色大片免费看

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(cè)管>氣體快速檢測(cè)管>190U正丁醇 1-Butanol 1-丁醇?xì)怏w檢測(cè)管 CH3(CH2)3OH 5-100ppm

正丁醇 1-Butanol 1-丁醇?xì)怏w檢測(cè)管 CH3(CH2)3OH 5-100ppm

簡(jiǎn)要描述:

190U 1-BUTANOL (+) 正丁醇 1-Butanol 1-丁醇?xì)怏w檢測(cè)管 CH3(CH2)3OH 5-100ppm作為一種氣體分析方法來(lái)講,用在試驗(yàn)室條件下研制的檢測(cè)管檢測(cè)定氣體濃度,實(shí)際上與其它方法相比結(jié)果是相似的,因?yàn)檫@些方法都是符合分析化學(xué)理論要求的,見附表,但是將氣體檢測(cè)管作為商品,其質(zhì)量技術(shù)指標(biāo)關(guān)健是其準(zhǔn)確度如何。檢測(cè)不同氣體的檢測(cè)管其準(zhǔn)確度也不相同,如硫化氫檢測(cè)管的相對(duì)標(biāo)準(zhǔn)誤差為10~5%、二氧化硫、一氧化碳、氨檢測(cè)管為15~10%、氯化氫檢測(cè)管為20~15%

更新時(shí)間:2024-12-18

在線留言
正丁醇 1-Butanol 1-丁醇?xì)怏w檢測(cè)管 CH3(CH2)3OH  5-100ppm

190U 1-BUTANOL (+) 正丁醇 1-Butanol 1-丁醇?xì)怏w檢測(cè)管 CH3(CH2)3OH  5-100ppm

1. PERFORMANCE
1) Measuring range :5-100 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 :0~40℃
6) Temperature compensation:Necessary(See"TEMPERATURE CORRECTION TABLE")
7) Reading :Graduations printed on the tube are calibrated by Ethyl cellosolve at 3 pump strokes
and 1-Butanol concentration is determined by using a conversion chart.
8) Colour change :Yellow→Pale blue
2. RELATIVE STANDARD DEVIATION
RSD-low:10% RSD-mid.:10% RSD-high:5%
3. CHEMICAL REACTION
Chromium oxide is reduced.
CH3CH2CH2CH2OH+Cr6++H2SO4→Cr3+
4. CALIBRATION OF THE TUBE
GAS CHROMATOGRAPHY
5. INTERFERENCE AND CROSS SENSITIVITY
50
20
100
150
200
300
400
500
5
300ml
ppm
GAS To pump
DEHUMIDIFIER
(White)
Tube No.
1-BUTANOL
Substance ppm Interference Coexistence
Alcohols FIG.1 Similar stain is produced. Higher readings are given.
Toluene 200 Whole reagent is changed to Pale blue. 〃
Hexane 1,000 The accuracy of readings is not affected. The accuracy of readings is not affected.
Trichloroethylene 1,000 〃〃
Ethyl acetate FIG.2 1,000 〃〃
0
100
50
Ethanol〔ppm〕?
FIG.1 Influence of Ethanol
1-Butanol indicating value 〔ppm〕
50 100
Coexistence
Interference
0
100
50
Ethyl acetate〔ppm〕?
FIG.2 Influence of Ethyl acetate
1-Butanol indicating value 〔ppm〕
500 1000
TEMPERATURE CORRECTION TABLE
Scale True Concentration (ppm)
Readings 0℃ 10℃ 20℃ 30℃ 40℃
(ppm) (32°F) (50°F) (68°F) (86°F) (104°F)
100 - - 100 85 77
80 - - 80 70 63
60 - 80 60 53 50
40 75 50 40 35 33
20 30 23 20 18 16
10 13 11 10 9 8
5 5 5 5 5 5
1-Butanol(ppm)?
90U Tube reading(ppm)?
(300mR)?
5
20
50
100
200
300
400
500
5
10
20
40
60
80
100
190U C www.r-biopharm.com.cn