KIN-TEK’s Span Pac™ I – SD (secondary dilution) uses readily available Trace Source™ Permeation Tubes to add a precisely known flow of span vapor into a controlled, adjustable flow of clean matrix gas to create a PPM calibration standard.
A second dilution stage then takes an adjustable aliquot of that primary mixture and further dilutes it with matrix gas to create substantially lower concentrations. This two-stage dilution method allows the output concentration to be varied seamlessly over a range of up to 10,000:1 from a single permeation tube. Higher rate Trace Source™ permeation tubes are more precise and readily available than extremely low rate tubes.
An alternate function of the two-stage dilution system is to create adjustable concentration while maintaining constant total flow. In this mode, the concentration can still be varied over a range of up to 400:1.
The Standard Additions Technique is used to compensate for residual contamination in the matrix gas. In use, accuracy of the measuring device is achieved by calibration on the differential response due to calibration gas addition.
Electronic Fluorocarbons (EFC), headquartered in Massachusetts, utilizes the latest technology for the purification and microanalysis of its legacy fluorinated specialty gases and rare gases for the medical and electronics semiconductor manufacturing industries.
As we head in to 2018, we look back on a very interesting changing market for krypton (Kr), xenon (Xe) and neon (Ne) in 2017. Ne supply this year continued to increase as new plants came on-stream while the demand was growing slowly after the big decline of 2016.
Electronics manufacturing is a highly complex sequence of adding and subtracting material, with the resulting sum yielding circuits sometimes less than one hundred atoms wide. For over 50 years, Moore’s Law has driven an industry to make smaller devices on larger scales.
Sherwood Valve, LLC has launched the company’s new, comprehensive 80+ page compressed gas catalog including industrial gas valves, medical valves, propane cylinder valves, alternative energy valves, specialty valves and pressure relief devices.
Month on month the gasworld website continues to be the primary portal for information, on a global scale, about our industry - be it through the provision of news and features, or information in the expansive company directory section. Launched in 2004, it is the only independent online news provider and information portal for the global industrial gas community and the larger end-user markets. The website also now incorporates news for gasworld US and Specialty Gas Report.
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