产品展示
氧气检测管31B
点击次数：218发布时间：2012/3/20 10:22:56
更新日期：2012/9/21 14:20:55
所 在 地：其它
产品型号：31B
相关标签：
优质供应
详细内容
简单介绍
氧气检测管31B Oxygen，Measuring Range 3 to 6% 6 to 24%，便携式多功能水质检测仪.应急检测箱. 便携式χ、γ辐射剂量仪，浊度计、色度计、气体检测仪、公共场所突发事件检测箱、有针对性地准备毒物快速检测仪器设备，如检气管、气体检测仪、化学毒物快速检测箱
氧气检测管31B Oxygen
的详细介绍氧气检测管31B Oxygen
Oxygen No.31B
O2
| Performance |
| Measuring Range | 3 to 6% | 6 to 24% | |
| Number of Pump Strokes | 1 | 1/2 | |
| Correction Factor | 1/2 | 1 | |
| Sampling Time | 2 minutes per pumpstroke | ||
| Detecting Limit | 2% （n=1） | ||
| Color Change | Black → White | ||
| Reaction Principle | O2 + 4TiCl3 +6H2O → 4TiO2+ 12HCl | ||
| Coefficient ofVariation | 5% （for6 to 24 %） | ||
| ShelfLife | 3Years | ||
| Correctionsfor temperature & humidity | Unnecessary | ||
| Store the tubes at cool ａnd darkplace. | |||
| Possible coexisting substances ａnd theirinterferences | （NOTE） |
| Substance | Concentration | Interference | Change color by itself |
| Carbonmonoxide | - | No effect | Nodiscoloration |
| Carbon dioxide | 40% | Plus error | Nodiscoloration |
Note:
If more than 40% carbon dioxide is coexisted, the tube reading willbe 1% higherthan
the true concentration.
（At 21% oxygen concentration tube 31B indicates22%.）
| Othersubstance measurable with this detector tube |
| Calibration gasgeneration | Dynamic gas dilution method | |
| TLV-TWA | TLV-STEL | Explosive range |
| - | - | - |
