产品分类
PRODUCT CENTER
联系我们
销售电话：时经理
18121126516
021-64835787
产品详情
简单介绍：
苯检测管121 Benzene C6H6，Strokes 4 2 1 Correction Factor 1/2 1 2 Sampling Time 1.5 minutes per pump stroke Detecting Limit 0.5 ppm (n=4) Color Change White → Dark Green Reaction苯检测管价格
详情介绍：
苯检测管121 Benzene C6H6
Benzene No.121
C6H6
Benzene No.121
C6H6
Benzene No.121
C6H6
Benzene No.121
C6H6
Benzene No.121
C6H6
Benzene No.121
C6H6
Benzene No.121
C6H6
Benzene No.121
C6H6
Benzene No.121
C6H6
Benzene No.121
C6H6
Benzene No.121
C6H6
Benzene No.121
C6H6
Benzene No.121
C6H6
Benzene No.121
C6H6
Benzene No.121
C6H6
Benzene No.121
C6H6
Benzene No.121
C6H6
Benzene No.121
C6H6
Benzene No.121
C6H6
Benzene No.121
C6H6
| Performance |
Measuring Range | 2.5 to 5 ppm | 5 to 60 ppm | 60 to 120 ppm |
Number of Pump Strokes | 4 | 2 | 1 |
Correction Factor | 1/2 | 1 | 2 |
Sampling Time | 1.5 minutes per pump stroke | ||
Detecting Limit | 0.5 ppm (n=4) | ||
Color Change | White → Dark Green | ||
Reaction Principle | C6H5 + I2O5→ H2S2O7 + I2 | ||
| Coefficient of Variation | 10% (for 5 to 20 ppm), 5% (for 20 to 60 ppm) | ||
| Shelf Life | 3 Years | ||
| Corrections for temperature & humidity | Unnecessary | ||
| Store the tubes at cool and dark place. | |||
| Possible coexisting substances and their interferences | (NOTE) |
Substance | Concentration | Interference | Change color by itself |
Esters | 2000 ppm | Plus error | No discoloration |
Aromatic HCs | - | Plus error | Produce dark green stain |
| Other substance measurable with this detector tube |
Substance Correction No. of Pump Strokes Measuring Range Diisobutylene Factor: 9 1 45 to 540 ppm α-Pinene Factor 19 3 95 to 1140 ppm
| Calibration gas generation | Diffusion tube method | |
| TLV-TWA | TLV-STEL | Explosive range |
| 0.5ppm | 2.5ppm | 1.3 to 7.1% |