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首頁>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>198U日本KITAGAWA北川式甲基環(huán)己酮CH3C6H9O氣體檢測(cè)管198U 2-100ppm

日本KITAGAWA北川式甲基環(huán)己酮CH3C6H9O氣體檢測(cè)管198U 2-100ppm

簡(jiǎn)要描述:

日本KITAGAWA北川式甲基環(huán)己酮CH3C6H9O氣體檢測(cè)管198U METHYL CYCLOHEXANONE 2-100ppm,氣體檢測(cè)管的原理及使用,測(cè)量精度高。在檢測(cè)管含量標(biāo)度的確定上模擬了現(xiàn)場(chǎng)分析條件,采用不同
標(biāo)準(zhǔn)氣標(biāo)定,克服了化學(xué)分析中易帶入的方法誤差。同時(shí)減少了人為誤差。該方法準(zhǔn)確度誤差一般有效量程為15%~25%,PPM(10-6)數(shù)量級(jí)的測(cè)量有優(yōu)勢(shì)。

更新時(shí)間:2025-03-11

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日本KITAGAWA北川式甲基環(huán)己酮CH3C6H9O氣體檢測(cè)管198U 2-100ppm

日本KITAGAWA北川式甲基環(huán)己酮CH3C6H9O氣體檢測(cè)管198U METHYL CYCLOHEXANONE 2-100ppm

Tube 98U
1. PERFORMANCE
1) Measuring range :2-100 ppm
Number of pump strokes 3(300ml)
2) Sampling time :4.5 minutes/3 pump strokes
3) Detectable limit :1 ppm
4) Shelf life :2 years
5) Operating temperature :0~40℃
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:5%
3. CHEMICAL REACTION
Chromium oxide is reduced.
CH3C6H9+Cr6++H2SO4→Cr3+
4. CALIBRATION OF THE TUBE
GAS CHROMATOGRAPHY
5. INTERFERENCE AND CROSS SENSITIVITY
2
10
20
40
60
80
100
ppm
300ml
GAS To pump
DEHUMIDIFIER
(White)
198U METHYL CYCLOHEXANONE
Substance Interference Coexistence
Aliphatic hydrocarbons Whole reagent is changed to Pale The accuracy of readings is not
brown. affected.
Aromatic hydrocarbons 〃〃
Halogenated hydrocarbons 〃〃
Alcohols FIG.1 Similar stain is produced. Higher readings are given.
Esters Pale ringed stain is produced near The accuracy of readings is not
the bottom of the reagent. affected.
0
70
100
30
50
Ethanol〔ppm〕?
FIG.1 Influence of Ethanol
Methyl cyclohexanone
indicating value 〔ppm〕
50 100 150
10
Coexistence
Interference
TEMPERATURE CORRECTION TABLE
Scale True Concentration (ppm)
Readings 10℃ 20℃ 30℃ 40℃
(ppm) (50°F) (68°F) (86°F) (104°F)
100 130 100 80 66
80 105 80 65 52
60 80 60 48 36
40 54 40 30 22
20 26 20 14 10
10 14 10 7 5

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