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水蒸汽H2O氣體檢知管177U WATER VAPOUR 0.05-2.0mg/l,檢測(cè)管的特長(zhǎng):無(wú)論何時(shí):由于不用分析儀器和化學(xué)藥劑,省略了測(cè)量前的準(zhǔn)備工作,無(wú)論何時(shí)都可以進(jìn)行測(cè)定,無(wú)論何地:極為小巧便于攜帶,只要有微量的空氣就可以進(jìn)行測(cè)定,Z適合于現(xiàn)場(chǎng)測(cè)定,無(wú)論何人:測(cè)定的操作非常簡(jiǎn)單,無(wú)論專業(yè)人士或非專業(yè)人士
更新時(shí)間:2024-11-13
在線留言水蒸汽H2O氣體檢知管177U WATER VAPOUR 0.05-2.0mg/l
Tube 77U
1. PERFORMANCE
1) Measuring range :0.05-2.0 mg/l
Number of pump strokes 1(100ml)
2) Sampling time :1 minute/1 pump stroke
3) Detectable limit :0.03 mg/l
4) Shelf life :3 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 : Yellow→Blue or Yellowish green
2. RELATIVE STANDARD DEVIATION
RSD-low:10% RSD-mid.:10% RSD-high:10%
3. CHEMICAL REACTION
By reacting with Magnesium perchlomate, PH indicator is discoloured.
H2O+Mg(CIO4)2→Mg(CIO4)2H2O
4. CALIBRATION OF THE TUBE
DIFFUSION TUBE METHOD
5. INTERFERENCE AND CROSS SENSITIVITY
GAS To pump
1.8
2.0
1.4
1.6
1.2
0.8
1.0
0.4
0.6
0.1
0.05
0.2
mg/l
177U WATER VAPOUR
Substance Interference Coexistence
Alcohols FIG.1 Similar stain is produced. Higher readings are given.
Paraffinic hydrocarbons The accuracy of readings is not The accuracy of readings is not
affected. affected.
0
2.0
Methanol〔ppm〕?
FIG.1 Influence of Methanol
Water vapour indicating value 〔mg/R〕
1500
1.5
500 1000
0.5
1.0
Coexistence
Interference
TEMPERATURE CORRECTION TABLE
Scale True Concentration (mg/r)
Readings
(mg/r) 32°F 41°F 50°F 59°F 68°F 77°F 86°F 95°F 104°F
2.0 3.70 3.06 2.48 2.00 1.60 1.28 0.92 0.66
1.8 4.40 3.26 2.66 2.20 1.80 1.44 1.10 0.82 0.58
1.6 4.00 2.94 2.40 1.95 1.60 1.30 0.98 0.74 0.52
1.4 3.30 2.52 2.08 1.72 1.40 1.15 0.85 0.64 0.44
1.2 2.70 2.06 1.80 1.48 1.20 0.98 0.72 0.54 0.38
1.0 1.92 1.66 1.50 1.24 1.00 0.82 0.60 0.46 0.30
0.8 1.58 1.38 1.24 1.00 0.08 0.66 0.50 0.36 0.25
0.6 1.10 1.02 0.90 0.74 0.60 0.50 0.37 0.26 0.18
0.4 0.72 0.68 0.60 0.50 0.40 0.34 0.25 0.18 0.12
0.2 0.38 0.36 0.32 0.26 0.20 0.18 0.14 0.08 0.06
0.1 0.18 0.17 0.15 0.13 0.10 0.08 0.06 0.50 0.04
上一篇:177SA水蒸汽H2O氣體檢測(cè)管177SA WATER VAPOUR 1.7-33.8mg/l
下一篇:177UL水蒸汽H2O氣體檢測(cè)管177UL WATER VAPOUR 3-80LB/MMCF
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