氯化氫HCl氣體檢知管173SB HYDROGEN CHLORIDE 0.4-40ppm 返回列表頁(yè)

氯化氫HCl氣體檢知管173SB HYDROGEN CHLORIDE 0.4-40ppm

Tube 73SB
1. PERFORMANCE
1） Measuring range ：4-40 ppm 2-20 ppm 0.4-4 ppm
Number of pump strokes 1/2（50ml） 1（100ml） 5（500ml）
2） Sampling time ：1 minute/1 pump stroke
3） Detectable limit ：0.2 ppm（500ml）
4） Shelf life ：3 years
5） Operating temperature ：0～40℃
6） Reading ：Direct reading from the scale calibrated by 1 pump stroke
7） Colour change ：Yellowish green→Pink
2. RELATIVE STANDARD DEVIATION
RSD-low：15％　RSD-mid.：10％　RSD-high：10％
3. CHEMICAL REACTION
PH indicator is discoloured by Hydrogen chloride.
4. CALIBRATION OF THE TUBE
COLOURIMETRY METHOD
5. INTERFERENCE AND CROSS SENSITIVITY
GAS To pump
DETECTOR TUBE
（White）
DEHUMIDIFIER TUBE
16
18
20
12
14
10
6
4
2
8
ppm
173SB HYDROGEN CHLORIDE
Substance ppm Interference Coexistence
Sulphur dioxide 200 dSiismtiinlagru pisahlee ds tfaroinm i sc lperaord duicsecodl obruatt imona yb ybe The accuracy of readings is
Hydrogen chloride. not affected.
Nitric acid cHoingch. 〃〃
Nitrogen dioxide 100 〃〃
Chlorine Similar stain is produced. Higher readings are given.
（NOTE）
When the concentration is below 2 ppm, 5 pump strokes can be used to determine the lower concentration.
Following formula is available for the actual concentration.
Actual concentration＝Reading value × 1
Number of strokes