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首页>产品中心>日本光明北川式气体检测管>气体快速检测管>139SB日本KITAGAWA北川式甲乙酮气体检测管139SB 0.01-1.4%

日本KITAGAWA北川式甲乙酮气体检测管139SB 0.01-1.4%

简要描述:

日本KITAGAWA北川式甲乙酮气体检测管139SB METHYL ETHYL KETONE 0.01-1.4%,识别性强。可以测定各种有害气体,并可实现在一定程度上的选择性识别。按检测方法分,有比长、比色、比容式检测管。比长式检测管。一定体积的样品通过检测管使指示粉产生变色,根据变色长度来确定被测气体的单位体积含量,这类检测管灵敏度、准确度Z高,应用Z为广泛。比色式检测管。通过一定体积的样品,根据指示粉产生的变色强弱度来确定被测气体的单位体积含量。

更新时间:2017-07-17

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日本KITAGAWA北川式甲乙酮气体检测管139SB 0.01-1.4%

日本KITAGAWA北川式甲乙酮气体检测管139SB METHYL ETHYL KETONE 0.01-1.4%

Tube No.139SB

1. PERFORMANCE
1) Measuring range :0.01-1.4%
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 :Direct reading from the scale calibrated by 2 pump strokes
7) Colour change :Orange→Brownish green
2. RELATIVE STANDARD DEVIATION
RSD-low:10% RSD-mid.:5% RSD-high:5%
3. CHEMICAL REACTION
Potassium dichromate is reduced.
CH3COC2H5+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
%
200ml
GAS To pump
139SB METHYL ETHYL KETONE
Substance Interference ppm Coexistence
Whole reagent is discoloured to
Acetylene 3% Brown and higher readings are
given.
Propane 0.2% 〃
Other organic gases or vapours .
except Halogenated hydrocar- Similar stain is produced 50 Higher readings are given.
bons

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