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Precise manufacturing of calibration gas mixtures involves many critical steps-consideration of chemical raw material purity as well as detailed impurity characterization; calculation of phase behavior for the calibration gas mixture; precise blending; and finally, independent confirming analysis of the final calibration gas mixture.

Before starting, requested specialty gas mixes are first evaluated for potential phase problems using advanced computer modeling. Following this, the specialty gas mixture is precisely blended to exacting specifications on high sensitivity gravimetric balances. All calibration weights are traceable to the US-NIST. Finally, the specialty gas mixture is analyzed using state-of-the-art analyzers to confirm that the blended and analyzed values agree with each other according to the stated product specifications. For a list of the most common components, take a look at our typical specialty gas components page.