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| gashandling:start [2020/11/09 12:50] – [Supply and Ordering] janet | gashandling:start [2020/11/24 23:44] (current) – [Connecting gas bottles] okan |
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| Gas cylinders obtained from vendors are subject to monthly rental, so send them back **promptly** to the vendor who supplied them. Usually the vendor name is stamped on the cylinder neck. A few gas cylinders belong to us (no stamp on the neck and supposedly labeled as ours) and we do not pay rental on them, and we can get them refilled by Industrial Welding Supply. As of 2014, we have one standard compressed **N2**, one standard compressed **He** and one standard compressed **O2** cylinder. | Gas cylinders obtained from vendors are subject to monthly rental, so send them back **promptly** to the vendor who supplied them. Usually the vendor name is stamped on the cylinder neck. A few gas cylinders belong to us (no stamp on the neck and supposedly labeled as ours) and we do not pay rental on them, and we can get them refilled by Industrial Welding Supply. As of 2014, we have one standard compressed **N2**, one standard compressed **He** and one standard compressed **O2** cylinder. |
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| * Most gases come from [[http://www.industrialwelding.net/|Industrial Welding Supply]],880 NE Circle Blvd, Corvallis, OR 97330; (541) 752-8686 - Christine. (Christine is in Albany office. Salem office is HQ) | * Most gases come from [[http://www.industrialwelding.net/|Industrial Welding Supply]], 880 NE Circle Blvd, Corvallis, OR 97330; (541) 752-8686 - Christine. (Christine is in Albany office. Salem office is HQ) |
| Call the Corvallis office to order or to schedule pickup. IWS delivers to OSU on Tuesdays. The delivery person comes to the lab BUT MUST BE LET IN because he/she MUST secure the new cylinders and the pickup cylinders must also be secured. Someone must sign for the cylinders upon delivery. (IWS cylinders are stamped with the IWS name, but because IWS was at one time the distributor for BOC specialty gases, sometimes BOC sylinders come from IWS.) | Call the Corvallis office to order or to schedule pickup. IWS delivers to OSU on Tuesdays. The delivery person comes to the lab BUT MUST BE LET IN because he/she MUST secure the new cylinders and the pickup cylinders must also be secured. Someone must sign for the cylinders upon delivery. (IWS cylinders are stamped with the IWS name, but because IWS was at one time the distributor for BOC specialty gases, sometimes BOC sylinders come from IWS.) |
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| * We also buy the KrF premix for the PLD laser from [[http://www.airgas.com/|Airgas]] in Corvallis (since 2014). Previously from [[http://www.linde-gas.com/en/index.html|Linde]] (formerly Spectra gas). Airgas also has other specialty gases, e.g. high pressure (10,000 psi) N2 cylinders for the MMR cryostat, 5N He for the closed-cycle fridge compressor and the PLD laser. Call the company to schedule order and pickup. | * We also buy the KrF premix for the PLD laser from [[http://www.airgas.com/|Airgas]] in Corvallis (since 2014). Previously from [[http://www.linde-gas.com/en/index.html|Linde]] (formerly Spectra gas). Airgas also has other specialty gases, e.g. high pressure (10,000 psi) N2 cylinders for the MMR cryostat, 5N He for the closed-cycle fridge compressor and the PLD laser. Call the company to schedule order and pickup. |
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| | * Airgas contact person is Scott Cannoy (Scott.Cannoy@airgas.com). He will dispatch someone to collect. Airgas has cheaper high-purity gases. |
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| * We can obtain some gases from the OSU Chemistry Department (helium, oxygen). | * We can obtain some gases from the OSU Chemistry Department (helium, oxygen). |
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| ==== Connecting gas bottles ===== | ==== Connecting gas bottles ===== |
| Here is a good resource about [[http://www.srigc.com/Connecting%20Gas%20Cylinders%20-%20August%202013.pdf|how to connect gas bottles and the safety issues associated with cylinders]]. (JT - this was a great site, but now it's gone and I have yet to find an equivalent ...) It also has information about different types of connectors: all gas bottles and regulators have standardized fittings that are particular to particular gases. Fittings are labeled by CGA-number (CGA = Compressed Gas Association). CGA-580 is used for inert gases. Oxygen fittings have different fittings (puts a high barrier to your accidentally venting highly reactive gas). A [[http://www.concoa.com/cgachart.html|list of CGA fittings]] can be found at this CONCOA site. Ted Pella also has information about [[https://www.tedpella.com/company_html/Compressed_Gas_Cylinder_Outlet_Connections.htm|standard fitting types in non-US labs]]. | Here is a good resource about [[http://www.srigc.com/Connecting%20Gas%20Cylinders%20-%20August%202013.pdf|how to connect gas bottles and the safety issues associated with cylinders]]. (JT - this was a great site, but now it's gone and I have yet to find an equivalent ...) It also has information about different types of connectors: all gas bottles and regulators have standardized fittings that are particular to particular gases. Regulator fittings are labeled by CGA-number (CGA = Compressed Gas Association). CGA-580 is used for inert gases (Argon, Nitrogen, Helium etc.). Oxygen fittings are different and labelled as CGA-540 (puts a high barrier to your accidentally venting highly reactive gas). A [[http://www.concoa.com/cgachart.html|list of CGA fittings]] can be found at this CONCOA site. Ted Pella also has information about [[https://www.tedpella.com/company_html/Compressed_Gas_Cylinder_Outlet_Connections.htm|standard fitting types in non-US labs]]. |
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| YouTube video (5:31) on safety basics and [[https://www.youtube.com/watch?v=487R4bSMt68|how to move a cylinder and attach a regulator]]. Good for beginners. | YouTube video (5:31) on safety basics and [[https://www.youtube.com/watch?v=487R4bSMt68|how to move a cylinder and attach a regulator]]. Good for beginners. |
