• Dynacal Perm Tubes with Ccertified Permeation Rates Traceable to NIST for Precise Results.

    Analytical instrumentation

    Dynacal Perm Tubes with Ccertified Permeation Rates Traceable to NIST for Precise Results.

    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.


    Digital Edition

    PIN 26.1 Feb/Mar 2025

    March 2025

    Analytical Instrumentation - Elemental Analysis for Quality and Process Control at Refineries, for Lubricants and Wear Metals in Engine Oils - Synthetic Lubricants: New Developments - Scaling...

    View all digital editions

    Events

    WPC 2025

    Mar 17 2025 Houston, TX, USA

    NGVS 2025

    Mar 18 2025 Beijing, China

    Water Philippines

    Mar 19 2025 Manila, Philippines

    Laborama 2025

    Mar 20 2025 Brussels, Belgium

    FLOWEXPO

    Mar 20 2025 Guangzhou, China

    View all events