SafeLok FAQs

This brochure contains a list of questions and answers about the use of SafeLok™ tubes – advanced thermal desorption tubes for pumped (active) air sampling that help preserve the integrity of clean tubes and collected samples from field monitoring right through to lab analysis.

SafeLok tubes offer all the advantages of Markes’ world-leading range of standard TD tubes but contain patented ‘diffusion-locking’ technology at each end. This stops sample escaping and prevents contamination.