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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>229SN,N-二甲基乙酰胺(CH3)2NCOCH3气体检测管229S 5-70ppm

N,N-二甲基乙酰胺(CH3)2NCOCH3气体检测管229S 5-70ppm

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N,N-二甲基乙酰胺(CH3)2NCOCH3气体检测管229S N,N-DIMETHYL ACETAMIDE 5-70ppm,总代理销售日本光明理化学工业株式会社北川式气体检测管,提供日本光明理化学工业株式会社北川式气体检测管介绍,日本光明理化学工业株式会社北川式气体检测管应用,日本光明理化学工业株式会社北川式气体检测管价格,日本光明理化学工业株式会社北川式气体检测管说明书,日本光明理化学工业株式会社北川式气体检测管售后服务,日本光明理化学工业株式会社北川式气体检测管中国总代理

更新时间:2017-08-31

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N,N-二甲基乙酰胺(CH3)2NCOCH3气体检测管229S 5-70ppm

N,N-二甲基乙酰胺(CH3)2NCOCH3气体检测管229S 5-70ppm

1. PERFORMANCE
1) Measuring range :5-70 ppm
Number of pump strokes 2(200ml)
2) Sampling time :2 minutes/1 pump stroke
3) Detectable limit :1 ppm
4) Shelf life :1 year
5) Operating temperature :10~40℃
6) Temperature compensation :Necessary under 20℃(See "TEMPERATURE CORRECTION TABLE")
7) Reading :Direct reading from the scale calibrated by 2 pump strokes
8) Colour change :Pale purple→Pale yellow
2. RELATIVE STANDARD DEVIATION
RSD-low:15% RSD-mid.:15% RSD-high:15%
3. CHEMICAL REACTION
By reacting with Alkali, Dimethyl amine is produced. Dimethyl amine reacts on Phosphoric acid and
PH indicator is discoloured.
CH3CON(CH3)2→HN(CH3)2
2HN(CH3)2+H3PO4→〔(CH3)2NH2〕2HPO4
4. CALIBRATION OF THE TUBE
DIFFUSION TUBE METHOD
5. INTERFERENCE AND CROSS SENSITIVITY
GAS To pump
70
60
50
40
30
20
10
5
100ml
ppm
􀀀􀀀
Tube No.
229S N, N-DIMETHYL ACETAMIDE
TEMPERATURE CORRECTION TABLE
Scale True Concentration (ppm)
Readings 10℃ 15℃ 20-40℃
(ppm) (50°F) (59°F) (68-104°F)
70 120 84 70
60 102 70 60
50 85 60 50
40 67 47 40
30 50 36 30
20 35 23 20
10 17 12 10
5 10 6 5
Substance Interference Coexistence
Carbon dioxide Not affected. 0.17% Lower readings are given.
Ammonia Similar stain is produced. Higher readings are given.
Amines 〃〃
Hydrazine 〃〃

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