Our customers often ask how best to package their sensitive samples for transport to our testing laboratory. Products of high purity must be handled carefully:

Packaging materials made of plastic or bubble wrap pose the risk of contaminating the sample from the outside or dislodging existing foreign particles. Some films contain plasticizers that leave filmy contamination on the product and can therefore falsify the result of the cleanliness analysis. When transporting your high-purity samples, we recommend wrapping them in commercially available aluminum foil. Aluminum foil is inherently highly pure, which minimizes the risk of additional contamination. Aluminum foil also does not attract particles, and if some residual dirt comes off the product, it collects in the film and can be caught again.

When packaging, make sure that the sample is wrapped loosely and ideally then shrink-wrapped. Instructions on how to pack it correctly can be found in the following video.