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Dichloromethane CH2Cl2 concentration detection tube detector toxic tube
NegotiableUpdate on 05/06
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Overview
Dichloromethane CH2Cl2 concentration detection tube for toxicity detection. The CH2Cl2 gas 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 dichloromethane enters the detection tube, a chemical change occurs, causing a change in color. The scale corresponding to the boundary of color change observation is the concentration of dichloromethane in the tested sample.
Product Details
Dichloromethane CH2Cl2 concentration detection tube detector toxic tube
Dichloromethane gas detection tube CH2Cl2
The dichloromethane 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 dichloromethane enters the detection tube, a chemical change occurs, causing a change in color. The scale corresponding to the boundary of color change observation is the concentration of dichloromethane in the tested sample.
138 specification:
| Testing Scope | 20-50ppm | 50-500ppm | |
| Extraction frequency | 2 times (200ml) | 1 time (standard) (100ml) | |
| correction factor | 0.4 | 1 | |
| Detection Time | 6 minutes | 3 minutes |
Testing line: 10ppm (2 extractions)
Color Change: White, Light Pink
Temperature and humidity correction: Temperature correction is required
Relative standard deviation: 10% (50-100ppm), 5% (100-500ppm)
Validity period: 36 months
reaction principle：Preprocessing tube: CH2Cl2+CrO3+H2S2O7Cl2
Detection tube: Cl2+3,3,5,5-tetramethylbenzidine quinone product
This detection tube can detect other gases:
| gas name | conversion factor | Extraction frequency | Testing Scope |
| Chloroethane | 0.3 | 1 | 15-150ppm |
138L specification:
| Testing Scope | 4-10ppm | 10-60ppm | 60-150ppm |
| Extraction frequency | 4 times (400ml) | 2 times (standard) (200ml) | Once (100ml) |
| correction factor | 0.4 | 1 | 2.5 |
| Detection Time | 12 minutes | 6 minutes | 3 minutes |
Detection line: 3ppm (pumping 4 times)
Color Change: White, Light Pink
Temperature and humidity correction: Temperature correction is required
Relative standard deviation: 15% (10-20ppm), 10% (20-60ppm)
Validity period: 24 months
reaction principle：Preprocessing tube:CH2Cl2+CrO3+H2S2O7Cl2
Testing tube:Cl2+3，3，5,，5，-TetramethylbenzidineQuinone type product
Dichloromethane CH2Cl2 concentration detection tube detector toxic tube
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