Sampling bags are commonly used to collect and transport air samples for later laboratory analysis. Samples are analyzed as soon as possible, but in practice this may involve storage for up to 12-24 hr after sampling.
Crosstek produce disposable Nalophan sampling bag for collection and storage of air. The Nalophan bag is made of chemically inert material and air sample stored in Nalophan bag is relatively stable for more than 12 hours.
Nalophan bag is recommended for odour sampling because it has the following properties::
Very low background odour
Do not adsorb or react with the odorous gases
Store air samples without significant loss of odour compounds up to 24 hours
Strong and robust
Low cost and good for one-time use
Nalophan bag comes in standard 40 L capacity. Other capacities are also available on request.