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简单介绍：
丙烯醛气体检测管93 Acrolein CH2:CHCHO，Number of Pump Strokes 4 2 Correction Factor 1/3 1 Sampling Time 2 minutes per pump stroke Detecting Limit 2 ppm (n=4)丙烯醛气体检测管价格
详情介绍：
丙烯醛气体检测管93 Acrolein CH2:CHCHO
Acrolein No.93
Acrolein No.93
CH2:CHCHO
| Performance |
MeasuringRange | 3.3to 10ppm | 10to 800ppm |
Number of PumpStrokes | 4 | 2 |
CorrectionFactor | 1/3 | 1 |
SamplingTime | 2 minutes per pumpstroke | |
DetectingLimit | 2 ppm (n=4) | |
ColorChange | Yellow → Red | |
ReactionPrinciple | 3CH2CHCHO + (NH2OH)3 • H3PO4 → H3PO4 + Base | |
| Coefficient ofVariation | 10% (for10 to 200 ppm), 5% (for 200 to 800 ppm) | |
| ShelfLife | 2Years | |
| Correctionsfor temperature & humidity | Temperature correction is necessary | |
| Store the tubes inthe refrigerator to keep at 10oC (50oF) orbelow | ||
| Possible coexisting substances and theirinterferences | (NOTE) |
Substance | Concentration | Interference | Change color by itself |
Ammonia | - | Minus error | Nodiscoloration |
Sulfurdioxide | 1/5 time | Plus error | Nodiscoloration |
Acetaldehyde | 1/5 time | Plus error | Produces redstain |
Acetone | 1 time | Plus error | Produces redstain |
Methyl EthylKetone | 3 times | Plus error | Produces redstain |
| Othersubstance measurable with this detector tube |
Substance | CorrectionFactor | Pump Strokes | Measuringrange |
Formaldehyde | 25 | 1 | 250 to 20000ppm |
| Calibration gasgeneration | Diffusion tubemethod | |
| TLV-TWA | TLV-STEL | Explosive range |
| - | C 0.1ppm | 2.8 to 31% |