Analytical Instrumentation

Dynacal Perm Tubes with certified permeation rates traceable to NIST for precise results.

Apr 16 2018 Read 225 Times

Dynacal permeation tubes, or "perm tubes", are small, inert capsules containing a pure chemical compound in a two phase equilibrium between its gas phase and its liquid or solid phase. Held at a precise, constant temperature in the permeation chamber of a Dynacalibrator, the device emits the compound through its permeable portion at a constant rate. Permeation rates are certified using standards traceable to NIST by the most basic and accurate laboratory procedure-measuring the gravimetric weight loss over a known time at a known temperature.

See for more information.

Read comments0

Do you like or dislike what you have read? Why not post a comment to tell others / the manufacturer and our Editor what you think. To leave comments please complete the form below. Providing the content is approved, your comment will be on screen in less than 24 hours. Leaving comments on product information and articles can assist with future editorial and article content. Post questions, thoughts or simply whether you like the content.

Digital Edition

Petro Industry News June / July 2018

July 2018

In This Edition... Fuel for Thought - A good year for Endress+Hauser - Dr. Shah honoured by Society of Tribologists and Lubrication Engineers - DURAG Group acquire AP2E Analytical Instru...

View all digital editions



Jul 30 2018 Moon Township, PA, USA

DXC 2018

Aug 06 2018 Westminster, CO, USA

Oil and Gas

Aug 09 2018 Madrid, Spain

ONS 2018

Aug 27 2018 Stavanger, Norway

Abu Dhabi International Downstream

Sep 03 2018 Abu Dhabi, UAE

View all events