PermaNet® 2.0 from any specific consignment is marked with a production code (batch number), which clearly identifies the relation between the net and the QC data.

Our PermaNet® production database holds information on Quality Control data including production history and laboratory data. This information is available within 24 hours after production and can be used to trace the production process and is provided to customers on request

Each shipment of PermaNet® 2.0 will be accompanied with a "Certificate of Quality" in which the Quality Control Data on physical properties and insecticidal properties are reported.

After a certain period of use, your PermaNet® may be tested at the Vestergaard Frandsen Hanoi laboratories to ascertain a full sample history:

1. Chemical analysis as per SOP.C.01 and/or the appropriate

2. Bioassay as per SOP.B.02 and/or the appropriate

3. Bursting Strength as per SOP.T.02 and/or the appropriate

In addition, we have the possibility to evaluate whether the loss of deltamethrin in the field is caused by normal use or by extreme conditions, primarily sunlight. If PermaNet® is exposed to extreme conditions, deltamethrin is not removed but is instead decomposed. The decomposed insecticide can be detected.

This analysis is offered as a service and for this we need to receive complete nets with the original labels showing a legible production code. The results of the analysis will be available within three weeks from the date of submission of the net to the nearest Vestergaard Frandsen office or laboratory.

Since the lifetime of PermaNet® largely depends on usage, the analysis will enable the national malaria programme or implementing partner in the field, to more accurately estimate when to start a new procurement round of new long lasting nets or begin a re-impregnation campaign of the existing long lasting nets.

Vestergaard Frandsen does not stand liable for differences in the lifetime of PermaNet® 2.0 between laboratory and field use, due to potentially harsh washing conditions, exposure to UV rays, soiling etc. under field conditions.