<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"></head><body><div>Steve,</div><div><br></div><div>I got my certification from TDI for oxygen preocedures. I would highly reccomend to take the class. I believe it cost about $100 or so. We do all of our cleaning on site for Pisces as well.</div><div><br></div><div>Thank you,</div><div>Scott Waters</div><div><br></div><div><br></div><div><br></div><div id="composer_signature"><div style="font-size:85%;color:#575757" dir="auto">Sent from my U.S. Cellular® Smartphone</div></div><div><br></div><div style="font-size:100%;color:#000000"><!-- originalMessage --><div>-------- Original message --------</div><div>From: Steve McQueen via Personal_Submersibles <personal_submersibles@psubs.org> </div><div>Date: 1/6/18 10:23 AM (GMT-06:00) </div><div>To: 'Personal Submersibles General Discussion' <personal_submersibles@psubs.org> </div><div>Subject: [PSUBS-MAILIST] At Home O2 Cleaning Process </div><div><br></div></div><div class="WordSection1"><p class="MsoNormal">All, I am working on cleaning some parts/pieces for O2 service on my K-250. I am buying most items “pre-cleaned” such as: Tank w/Valve, First Stage Regulator, Thru Hull Isolation Valve, Flow Regulator.<o:p></o:p></p><p class="MsoNormal"><o:p> </o:p></p><p class="MsoNormal">However, I will have some parts & pieces (mainly misc. adaptors and ¼ SS tubing) I may still need to clean.<o:p></o:p></p><p class="MsoNormal" style="mso-margin-bottom-alt:auto;line-height:13.5pt;background:white">I know an “at home” process will fall short but looking to create/document a procedure anyway.<o:p></o:p></p><p class="MsoNormal" style="mso-margin-bottom-alt:auto;margin-left:0in;text-indent:-.25in;line-height:13.5pt;mso-list:l0 level1 lfo1;background:white"><!--[if !supportLists]--><span style="font-size:10.0pt;font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman""> </span></span></span><!--[endif]-->I am using ASTM G93, "Standard Practice for Cleaning Methods and Cleanliness Levels for Material and Equipment Used in Oxygen-Enriched Environments" as the standard.<o:p></o:p></p><p class="MsoNormal" style="mso-margin-bottom-alt:auto;margin-left:0in;text-indent:-.25in;line-height:13.5pt;mso-list:l0 level1 lfo1;background:white"><!--[if !supportLists]--><span style="font-size:10.0pt;font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman""> </span></span></span><!--[endif]--><o:p> </o:p></p><p class="MsoNormal" style="mso-margin-bottom-alt:auto;margin-left:0in;text-indent:-.25in;line-height:13.5pt;mso-list:l0 level1 lfo1;background:white"><!--[if !supportLists]--><span style="font-size:10.0pt;font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman""> </span></span></span><!--[endif]-->Maybe someone already has a procedure (or opinion) they want to share?<o:p></o:p></p><p class="MsoNormal" style="mso-margin-bottom-alt:auto;line-height:13.5pt;background:white">Steve<o:p></o:p></p><p class="MsoNormal" style="mso-margin-bottom-alt:auto;line-height:13.5pt;background:white"><o:p> </o:p></p><p class="MsoNormal" style="mso-margin-bottom-alt:auto;margin-left:0in;text-indent:-.25in;line-height:13.5pt;mso-list:l0 level1 lfo1;background:white"><!--[if !supportLists]--><span style="font-size:10.0pt;font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman""> </span></span></span><!--[endif]--><o:p> </o:p></p><p class="MsoNormal"><o:p> </o:p></p><p class="MsoNormal" style="mso-margin-bottom-alt:auto;margin-left:0in;text-indent:-.25in;line-height:13.5pt;mso-list:l0 level1 lfo1;background:white"><!--[if !supportLists]--><span style="font-size:10.0pt;font-family:Symbol;color:#333333"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman""> </span></span></span><!--[endif]-->I am using <span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#333333">ASTM G93, "Standard Practice for Cleaning Methods and Cleanliness Levels for Material and Equipment Used in Oxygen-Enriched Environments" as the standard. I know an “at home” process will fall short but looking to create/document a procedure anyway.<o:p></o:p></span></p><p class="MsoNormal" style="mso-margin-bottom-alt:auto;margin-left:0in;text-indent:-.25in;line-height:13.5pt;mso-list:l0 level1 lfo1;background:white"><!--[if !supportLists]--><span style="font-size:10.0pt;font-family:Symbol;color:#333333"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman""> </span></span></span><!--[endif]--><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#333333"><o:p> </o:p></span></p><p class="MsoNormal"><o:p> </o:p></p></div></body></html>