EU scoping info It is important, I think, to note that the MD/LVD exclusion for PED only extends to devices in PED Category I or lower, so you still have to determine PED Category before you can be certain of exclusion. A rule of thumb I use is that a device with remain in the the Category of SEP (requiring application of sound engineering practice) if it does not exceed the following limits; for piping an ID less of 25mm; for vessels of any size, a pressure volume product of 2900 psig-liters; for vessels less than 1 liter, a PV product of 360 psig-liters. The pressure of interest is MSP - maximum system pressure (i.e. how the vessel could actually be used in practice as limited by design, instructions, etc...).
If your vessel crosses one of those boundaries then you must use the appropriate of the 9 PED graphs to determine your vessel Category (SEP, I, II, III, or IV). Be careful how you rely on pressure relief valves to determine your vessel MSP. The break pressure of a PRV is not the same as the vessels MSP. Also, depending on the use of your vessel, you may have interaction with the simple pressure vessel directive (SPVD) or the transportable pressure equipment directive (TPED). Regards, Lauren Crane Applied Materials america - europe - asia Corporate Product EHS www.amat.com lauren crane (mr.) product regulatory analyst (t) +1.512.272.6540 [email protected] - external use - Save paper and trees! Please consider the environment before printing this e-mail. From: Nick Williams <[email protected]> To: "Kunde, Brian" <[email protected]> Cc: <[email protected]> List-Post: [email protected] List-Post: [email protected] List-Post: [email protected] Date: 08/31/2010 08:28 AM Subject: Re: Pressure Vessels Test Requirements Sent by: [email protected] ________________________________ Brian, For the USA, you need to research "ASME" try http://go.asme.org/bpvc10 <http://go.asme.org/bpvc10> For the EU, you need the Pressure Equipment Directive (PED) (http://www.conformance.co.uk/directives/ce_pressure.php <http://www.conformance.co.uk/directives/ce_pressure.php> ) but if the vessel is only small and is part of a product which its itself CE marked under the Machinery or Low Voltage Directives then you can ignore the PED. I know little about ASME, but if you need help with the PED, please drop me a line directly. Nick. At 09:19 -0400 31/8/10, Kunde, Brian wrote: >Our company wants to start making and testing a small pressure >vessel (about the size of your fist) used in a piece of laboratory >equipment. I'm not at all familiar with the rules and regulations >regarding the design, manufacturing and testing of such vessels. I'm >sure there are accreditations and certifications that must be had to >make a product that can be shipped globally. > >Can those of you with experience in this area please point me in the >right direction? Is there a preferred safety or accreditation agency >that can take us through the steps and teach us what we have to do? > Is there a consultant to whom you would recommend? Any other >suggestions would be most appreciated. > >Thank you. > >The Other Brian - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <[email protected]> All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc <http://www.ieeecommunities.org/emc-pstc> Graphics (in well-used formats), large files, etc. can be posted to that URL. Website: http://www.ieee-pses.org/ <http://www.ieee-pses.org/> Instructions: http://listserv.ieee.org/request/user-guide.html <http://listserv.ieee.org/request/user-guide.html> List rules: http://www.ieee-pses.org/listrules.html <http://www.ieee-pses.org/listrules.html> For help, send mail to the list administrators: Scott Douglas <[email protected]> Mike Cantwell <[email protected]> For policy questions, send mail to: Jim Bacher: <[email protected]> David Heald: <[email protected]> - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <[email protected]> All emc-pstc postings are archived and searchable on the web at http://www.ieeecommunities.org/emc-pstc Graphics (in well-used formats), large files, etc. can be posted to that URL. Website: http://www.ieee-pses.org/ Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <[email protected]> Mike Cantwell <[email protected]> For policy questions, send mail to: Jim Bacher <[email protected]> David Heald <[email protected]>
