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139SB BUTYL ACETATE (+) 乙醛(醋醛)檢測管BUTYL ACETATE CH3CO2C4H9 10-400ppm,準(zhǔn)確度誤差主要來源于檢測管本身質(zhì)量,這主要決定于產(chǎn)品在制造過程中計(jì)量管理和質(zhì)量管理是否規(guī)范、加強(qiáng)這方面技術(shù)管理是確保檢測管質(zhì)量的前題,另外檢測管化學(xué)組份較為復(fù)雜,易產(chǎn)生質(zhì)變,應(yīng)該使用在有效期內(nèi)的檢測管。
更新時(shí)間:2024-12-18
在線留言乙醛(醋醛)檢測管139SB BUTYL ACETATE CH3CO2C4H9 10-400ppm
1. PERFORMANCE
1) Measuring range :0.01-1.0%
Number of pump strokes 2(200ml)
2) Sampling time 3 minutes/2 pump strokes
3) Detectable limit :10 ppm
4) Shelf life :3 years
5) Operating temperature :0~40℃
6) Reading :Graduations printed on the tube are calibrated by Methyl ethyl ketone at 2 pump
strokes and Butyl acetate concentration is determined by using a conversion chart.
7) Colour change :Orange→Brownish green
2. RELATIVE STANDARD DEVIATION
RSD-low:15% RSD-mid.:10% RSD-high:10%
3. CHEMICAL REACTION
Potassium dichromate is reduced.
CH3CO2(CH2)3CH3+Cr6+H2SO4→Cr3+
4. CALIBRATION OF THE TUBE
GAS CHROMATOGRAPHY
5. INTERFERENCE AND CROSS SENSITIVITY
0.01
0.05
0.1
0.2
0.4
0.6
0.8
1.0
1.2
1.4
%? GAS To pump
Tube No.
BUTYL ACETATE
Substance Interference ppm Coexistence
Acetylene 3% Whole reagent is clanged to Brown.
Propane 0.2% 〃
Other organic gases or vapours
except Halogenated hydrocar- Similar stain is produced. 50 Higher readings are given.
bons
139SB C
Butyl acetate(%)?
39SB Tube reading(%)?
(200mR)?
0.01
0.05
0.1
0.2
0.4
0.6
0.8
1.0
1.2
1.4
0.01
0.1
0.2
0.4
0.6
0.8
1.0
www.r-biopharm.com.cn
www.r-biopharm.com.cn
上一篇:138U醋酸丁酯檢測管 BUTYL ACETATE 10-400ppm CH3CO2C4H9
下一篇:211U丙烯酸丁酯氣體檢測管 Butyl acrylate CH2=CHCO2C4H9 5-60ppm
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