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Building 3, No. 1700 Gangyan Road, Gangyan Town, Chongming District, Shanghai
Shanghai Dahuan Environmental Protection Technology Co., Ltd
Building 3, No. 1700 Gangyan Road, Gangyan Town, Chongming District, Shanghai
Nitric acid vapor HNO3 detection tube detector toxic tube
It adopts the advanced management philosophy and system of Japan's Gastec Cor cooperation, and accepts the entrustment of Japan's Gastec Company to take full charge of the sales business of its original products in Chinese Mainland. Beijing Kesite Gas Technology Co., Ltd. provides gas generators, permeation tubes, gas samplers, gas detection tubes and other products and services to a wide range of domestic customers, including Tsinghua University Yangtze River Delta Research Institute, Philips Research Institute, Coca Cola Company, Agilent, Centers for Disease Control and Prevention (CDC), environmental monitoring agencies, research institutions, etc. It has gained recognition from customers and established good cooperation.
It adopts the advanced management philosophy and system of Japan's Gastec Cor cooperation, and accepts the entrustment of Japan's Gastec Company to take full charge of the sales business of its original products in Chinese Mainland. Beijing Kesite Gas Technology Co., Ltd. provides gas generators, permeation tubes, gas samplers, gas detection tubes and other products and services to a wide range of domestic customers, including Tsinghua University Yangtze River Delta Research Institute, Philips Research Institute, Coca Cola Company, Agilent, Centers for Disease Control and Prevention (CDC), environmental monitoring agencies, research institutions, etc. It has gained recognition from customers and established good cooperation.
Nitric acid gas detection tube
The nitric acid detection tube is a sealed, slender glass tube that presents a specific color due to being filled with specific reagents and coloring agents. When a gas sample containing nitric acid enters the detection tube, a chemical change occurs, causing a change in color. The scale corresponding to the boundary of observing color changes is the concentration of nitric acid in the tested sample.
15L specification:
| Testing Scope | 0.1-1ppm | 1-20ppm | 20-40ppm |
| Extraction frequency | 2-10 times (200-1000ml) | 1 time (standard) (100ml) | 1/2 time (50ml) |
| correction factor | 1/2-1/10 | 1 | 2 |
| pumping time | 1-5 minutes | 30 seconds | 30 seconds |
Detection line: 0.05 ppm (pumping 10 times)
Color Change: Yellow, Purple, Red
Temperature and humidity correction: humidity correction is required
Relative standard deviation: 15% (1-5ppm), 10% (5-20ppm)
Validity period: 36 months
reaction principle:HNO3+indicator reactant
This detection tube can detect other gases
| gas name | conversion factor | Number of puffs | Testing Scope |
| Hydrogen bromide | 0.8 | 1 | 0.8-16ppm |
| C2HCl3O2 | According to the conversion table | 1 | 1-37.5ppm |

Nitric acid vapor HNO3 detection tube detector toxic tube