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简单介绍：
单乙醇胺H2NCH2CH2OH气体检测管224SA
单乙醇胺H2NCH2CH2OH气体检测管224SA ,单乙醇胺H2NCH2CH2OH气体检测管224SA MONOETHANOL AMINE 0.5-50ppm.日本光明理化工业株式会社从1947年开始，在气体分析领域开拓了六十余年 , 形成了驰名于世的 ” 北川 ” 式气体检测管。
详情介绍：
单乙醇胺H2NCH2CH2OH气体检测管224SA
单乙醇胺H2NCH2CH2OH气体检测管224SA ,单乙醇胺H2NCH2CH2OH气体检测管224SA MONOETHANOL AMINE 0.5-50ppm.日本光明理化工业株式会社从1947年开始，在气体分析领域开拓了六十余年 , 形成了驰名于世的 ” 北川 ” 式气体检测管。气体快速分析法 ” 北川 ” 的历史就是日本检测管的历史 。目前是世界上*大的检测管生产厂家，也是日本**家通过美国SEI的认证，欧盟的认证的检测管厂家。公司不仅有ISO9001:2000的认证，还获得了环境管理的ISO14001的认证。北川式手动气体采集器AP-20 备有采气完成指示计 , 可以清楚的判明采气是否完成 . • 有专门截留玻璃的截留槽 , 以防止检测管割尖时玻璃片飞溅 . • 有采气容积为 50 毫升和 100 毫升的两段式制动卡 . • 采气器极为小巧 , 并有便于携带的皮具包 。
Tube No.224SA
1. PERFORMANCE
1) Measuring range ：1-50 ppm 0.5-25 ppm
Number of pump strokes 1(100ml) 2(200ml)
2) Sampling time ：1 minute/1 pump stroke
3) Detectable limit ：0.2 ppm(200ml)
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 1 pump stroke
8) Colour change ：Pink→Pale purple
2. RELATIVE STANDARD DEVIATION
3. CHEMICAL REACTION
By reacting with Sulphuric acid, PH indicator is discoloured.
H2NCH2CH2OH＋H2SO4→(HOC2N5NH3)2SO4
4. CALIBRATION OF THE TUBE
COLOURIMETRY METHOD
5. INTERFERENCE AND CROSS SENSITIVITY
1
3
5
10
15
20
25
30
40
50
ppm
GAS To pump
224SA MONOETHANOL AMINE
Substance Interference Coexistence
Other amines Brownish yellow stain is produced. Double-stain layer(Brownish yellow
FIG.1 and Pale purple)is produced.
ammonia Similar stain is produced. Double-stain layer(Yellow and Pale
FIG.2 purple)is produced.
Hydrazine 〃〃
(ACtmOo2s＋phHe2rOic) air 〃
0
40
20
Methyl amine〔ppm〕?
FIG.1 Influence of Methyl amine
Monoethanol amine
indicating value 〔ppm〕
20 40
Coexistence
Interference
0
40
20
Ammonia〔ppm〕?
FIG.2 Influence of Ammonia
Monoethanol amine
indicating value 〔ppm〕
5 10
Coexistence
Interference
(NOTE)
1)In case of 2 pump strokes, following formula is available for the actual concentration.
Actual concentration＝1/2×Temperature corrected value
2)In any case, Pale purple stain only is indicated concentration of Monoethanal amine. Other discolourations
may be disregarded.
TEMPERATURE CORRECTION TABLE
Scale True Concentration (ppm)
Readings 0℃ 10℃ 20℃ 30℃ 40℃
(ppm) (32°F) (50°F) (68°F) (86°F) (104°F)
50 － － 50 35 29
40 － 65 40 30 25
30 － 49 30 23 20
25 － 39 25 20 17
20 65 30 20 16 14
15 45 22 15 12 10
10 29 14 10 8 7
5 12 7 5 4 3
3 6 4 3 3 2
1 1 1 1 1 1
1. PERFORMANCE
1) Measuring range ：1-50 ppm 0.5-25 ppm
Number of pump strokes 1(100ml) 2(200ml)
2) Sampling time ：1 minute/1 pump stroke
3) Detectable limit ：0.2 ppm(200ml)
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 1 pump stroke
8) Colour change ：Pink→Pale purple
2. RELATIVE STANDARD DEVIATION
3. CHEMICAL REACTION
By reacting with Sulphuric acid, PH indicator is discoloured.
H2NCH2CH2OH＋H2SO4→(HOC2N5NH3)2SO4
4. CALIBRATION OF THE TUBE
COLOURIMETRY METHOD
5. INTERFERENCE AND CROSS SENSITIVITY
1
3
5
10
15
20
25
30
40
50
ppm
GAS To pump
224SA MONOETHANOL AMINE
Substance Interference Coexistence
Other amines Brownish yellow stain is produced. Double-stain layer(Brownish yellow
FIG.1 and Pale purple)is produced.
ammonia Similar stain is produced. Double-stain layer(Yellow and Pale
FIG.2 purple)is produced.
Hydrazine 〃〃
(ACtmOo2s＋phHe2rOic) air 〃
0
40
20
Methyl amine〔ppm〕?
FIG.1 Influence of Methyl amine
Monoethanol amine
indicating value 〔ppm〕
20 40
Coexistence
Interference
0
40
20
Ammonia〔ppm〕?
FIG.2 Influence of Ammonia
Monoethanol amine
indicating value 〔ppm〕
5 10
Coexistence
Interference
(NOTE)
1)In case of 2 pump strokes, following formula is available for the actual concentration.
Actual concentration＝1/2×Temperature corrected value
2)In any case, Pale purple stain only is indicated concentration of Monoethanal amine. Other discolourations
may be disregarded.
TEMPERATURE CORRECTION TABLE
Scale True Concentration (ppm)
Readings 0℃ 10℃ 20℃ 30℃ 40℃
(ppm) (32°F) (50°F) (68°F) (86°F) (104°F)
50 － － 50 35 29
40 － 65 40 30 25
30 － 49 30 23 20
25 － 39 25 20 17
20 65 30 20 16 14
15 45 22 15 12 10
10 29 14 10 8 7
5 12 7 5 4 3
3 6 4 3 3 2
1 1 1 1 1 1