Forum Technical Discussions Re: MT, PT in Sub zero Temp Posted by: Michel Couture (PID_2805), E-mail: Address, on July 01, 2008 at 17:49 : In Reply to: MT, PT in Sub zero Temp posted by : RT. Jeyakumar , E-mail: Address, on July 01, 2008 at 08:10 : Personally, I never had to deal with this situation and for what I know is from my courses. As far as PT is concerned, the temperature range for penetrant should be between 4 - 152 degree Celcius (40 - 125 degree F) unless otherwise specified meaning you have to find a penetrant that can work below this range. That is in accordance with ASTM E1417 para. 7.2 Now with MT, you give very little information, but you could use a dry particle medium that would give you a proper contrast. No chemical would be involved. Having said that, I encourage you to consult ASTM Standards E709 - Standard Guide for Magnetic Particle Examinatin and E1417 Standard Parctice for Liquid Penetrant Examination. Thesee two standards should help you make the right decision. Cheerios, Michel ----------- Start Original Message ----------- : Good day Everyone, : Is there any special chemicals available for doing above NDT in Sub Zero temperature. : And any code & Standard specifically for this kind of regions? : Please help me giving some tips. : Thanks in advance, : RT. Jeyakumar ------------ End Original Message ------------ Follow Ups: Post a Followup: Name: E-Mail: Subject: Comments: ----------- Start Original Message ----------- : Personally, I never had to deal with this situation and for what I know is from my courses. : As far as PT is concerned, the temperature range for penetrant should be between 4 - 152 degree Celcius (40 - 125 degree F) unless otherwise specified meaning you have to find a penetrant that can work below this range. That is in accordance with ASTM E1417 para. 7.2 : Now with MT, you give very little information, but you could use a dry particle medium that would give you a proper contrast. No chemical would be involved. : Having said that, I encourage you to consult ASTM Standards E709 - Standard Guide for Magnetic Particle Examinatin and E1417 Standard Parctice for Liquid Penetrant Examination. Thesee two standards should help you make the right decision. : Cheerios, : Michel : : : Good day Everyone, : : Is there any special chemicals available for doing above NDT in Sub Zero temperature. : : And any code & Standard specifically for this kind of regions? : : Please help me giving some tips. : : Thanks in advance, : : RT. Jeyakumar ------------ End Original Message ------------ Optional Link URL: Example: "http://www....html". Alternative write "http://www.ndt.net/wshop/attach/filename.htm" if you transfered a filename.htm via FTP Page Title: is important! Optional Image URL: http://www....gif Attention! Please click the button only once. This may take a moment to process Forum Technical Discussions Help