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GAS174D Butadiene-1,3 Passive Dosi-Tube 1.3 – 200ppm
GAS174D Butadiene-1,3 Gastec Passive Sampling Dosi Tubes (Time Weighted Average Detector Tubes)
The Dosi-Tube System allows an operator to evaluate the level of gas a worker is exposed to over a time period such as a working shift.
The Dosi-Tube is easily clipped into the Dosi-tube holder (GAS710) which is worn on a garment of clothing.
|Measuring Range||1.3 to 200 ppm|
|Sampling Hours||1 to 8 hours|
|Detecting Limit||1.3 ppm (8 hours)|
|Colour Change||Reddish purple Pale brown|
|Reaction Principle||Butadiene reacts with Permanganate to produce light brown reaction product.
CH2:CHCH:CH2 + MnO4 (Reddish purple) Pale brown product
|Coefficient of Variation||10% (for 10 to 200 ppm∙hr)|
|Shelf Life||Up to 2 years from point of manufacture|
temperature & humidity
|Temperature correction is necessary|
|Store the tubes at cool and dark place.|
|Possible coexisting substances and their interferences|
|Substance||Concentration||Interference||Change colour by itself|
|Unsaturated hydrocarbons||–||Plus error||Produce pale brown discoloration|
Other substances measurable with this detector tube
|Ethylene||Factor: 1.2||1.56 to 240 ppm|
|Vinyl Chloride||Factor: 1.2||1.56 to 240 ppm|
|Isoprene||Factor: 2.0||2.6 to 400 ppm|
|Trans-1,2-Dichloroethylene||Factor: 3.0||3.9 to 600 ppm|
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Contact us - Our application specialists will identify the best gas monitoring equipment for your needs based on the information that you can provide. If you're unsure about what's important, consider booking a site survey.
Book a site survey - Our specialists consider your process, your site conditions and work with you to understand your needs. It is the most effective means of ensuring your system is completely fit for purpose.