On-line calibration for trace sulfur species is achievable with the Span Pac I from Kin-Tek, suitable for applications including on-line product quality assurance, HAPs monitoring, process control, stationary source monitors, and toxic gas monitoring.
Effective calibration for ‘total sulfur’ often requires a mix of compounds where the concentration of each compound is known. For example, a 1ppmw specification for total sulfur in propylene may also require a maximum of 50ppbw of COS combined with a range of other compounds including H2S, mercaptans, and some heavier sulfides.
The Span Pac™ 261 I, Dual Channel, Industrial Permeation System produces suitable standards for these requirements. One channel is operated at 40°C and is used for ppb COS plus 0.5ppm each of H2S, methyl and ethyl mercaptans.
The second channel is typically operated at 60°C and is used for similar concentrations of dimethyl sulfide, dimethyl disulfide and/or thiophene.
The Span Pac™ I is housed in a NEMA 4 cabinet and is available with Div 2 or Div 1 purge package for hazardous area service. Oven temperatures and permeation tubes are selected to suit the application.
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.
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