Guide To Air Sampling with Tedlar BagsNovember 10, 2017
Guide to Air Sampling with Tedlar Bags
Air sampling is one of the essential procedures in numerous industries all over the world. Governmental regulations, research, and development require sampling the ambient air (indoor/outdoor) for various purposes. When not being used for R&D, air sampling is done to check the indoor air quality for the health and safety of workers and residents in a building.
Why use Tedlar Bags for Air Sampling?
Tedlar bags are renowned for being an ideal method for retaining the quality of collected air samples efficiently. These are more popular as they provide a better storage and transport solution too.
Tedlar bags made from mainly PVF (polyvinyl fluoride) film, also called a Tedlar® film hence the name of the bags is also Tedlar bags. That is a versatile material with valuable properties, making it an ideal storage component for collected rare and VOC gases.
The main properties of a PFV/Tedlar film are:
- High resistance to greater temperature levels
- Comprehensive chemical inertness
- High tensile strength
- Lowest absorption rate
- Higher resistance to gas permeability
Another major component of the bag is the PP (polypropylene) or PTFE (Teflon) and SS (Stainless Steel) valve fitting. Aforementioned used by connecting to the hose which pushes the collected air in it. This is an efficient 2-in-1 fitting system which is strong and reliable. The silicon septum is also designed to be easily detachable and removed when required, and acts as a wall between the two parts of the bag.
Easy guide to Air Sampling with Tedlar Bags
Tedlar bags are designed to collect gas and air samples. These are mainly used to collect VOC (Volatile Organic Compounds) found in the atmosphere. Apart from this, the Tedlar Bag is also useful in collecting CO (Carbon Monoxide), H2S (Hydrogen Sulfide), Sulfur Hexafluoride, mercaptans, radon and other such gases.
These are simple steps that guide you for an efficient air sampling procedure using Tedlar bags:
- Use the air-tight syringe to collect the air sample.
- Connect the syringe to the port in the septum of the Tedlar bag properly.
- Push the plunger of the air collection syringe slowly and steadily.
- Fill the air sample till the bag is half-full.
- Detach the syringe, once done, slowly from the port.
These simple steps will allow you to get the best air sampling experience, for research and development or commercial applications. Techinstro, the leading Tedlar bags providers, has been providing highly innovative and advanced industrial and technical solutions to numerous industries and educational institutes.