[Pansophy] Procedure Help

Mon Oct 11 19:16:15 EDT 2021

Allen,

I will work with you on the procedure.
I had talked with Ashley previously.
Please put a meeting on my calendar.
Thank You.

Valerie

From: Allen Samuels
Sent: Monday, October 11, 2021 5:01 PM
To: Valerie Bookwalter <bookwalt at jlab.org>; Ashley Anderson Mitchell <ashleya at jlab.org>; pansophy at jlab.org
Cc: Tiffany Ganey <ganey at jlab.org>
Subject: RE: Procedure Help

Ashley,

I've been working on converting this procedure for you. Where would you like this section to go? If it's inbetween two of the already existing sections, let me know which ones.

Allen

From: Pansophy <pansophy-bounces at mailman.jlab.org<mailto:pansophy-bounces at mailman.jlab.org>> On Behalf Of Valerie Bookwalter
Sent: Thursday, October 7, 2021 2:58 PM
To: Ashley Anderson Mitchell <ashleya at jlab.org<mailto:ashleya at jlab.org>>; pansophy at jlab.org<mailto:pansophy at jlab.org>
Cc: Tiffany Ganey <ganey at jlab.org<mailto:ganey at jlab.org>>
Subject: Re: [Pansophy] Procedure Help

Absolutely, no problem.

From: Pansophy <pansophy-bounces at mailman.jlab.org<mailto:pansophy-bounces at mailman.jlab.org>> On Behalf Of Ashley Anderson Mitchell
Sent: Thursday, October 7, 2021 2:55 PM
To: pansophy at jlab.org<mailto:pansophy at jlab.org>
Cc: Tiffany Ganey <ganey at jlab.org<mailto:ganey at jlab.org>>
Subject: [Pansophy] Procedure Help

Tiffany said you might be able to add this section into the STP procedure that is being converted to the new STP place and format.

https://jlabdoc.jlab.org/docushare/dsweb/Get/Document-132364/CP-STP-CAV-CHEM-DEGR-R3.pdf

1.1    Right Angle Valves
The following steps apply to right angle valves and other valves as appropriate.  Only like material is to be cleaned in the bath.  Do not share the bath with other items.  All valves shall be opened prior to executing this procedure.  To prevent excessive exposure to particulate in air, the user is to perform all actions within the laminar flow hood (when possible).

1.   Don a new pair of nitrile gloves and appropriate safety glasses.
2.   Remove valve(s) from packaging and any covers.
3.   Inspect valves(s) for excessive damage (chips/scratches/bent parts).  If a valve has a pre-existing impairment, notify PI/PM.  Do not proceed until PI/PM verifies through written acknowledgement of previous damage presence.
4.   If the component(s) appears excessively soiled or greasy, or has tape/stickers/labels present, perform the following:

  1.  Wipe all oil, marker, stickers, and tape off with acetone.

        *   A plastic or metal razor blade may be used on the outside of the valve if necessary.

  1.  Use a TX 1009B Alpha Wipe and solvent to remove excess residue on the threads of the valve stem if necessary.

        *   The valve stem does not need to be completely free of residue, but the majority should be removed.

  1.  Measure a small amount of Micro90 into a small container.
  2.  Use a TX 1009B Alpha Wipe to apply detergent directly to the component's exterior and/or interior.  Additional wipers, brushes or other means may be necessary to pre-clean heavily soiled components.
  3.  Alternatively, the components may be ultrasoniced in a secondary container.
  4.  Thoroughly rinse component with DI water.
  5.  Repeat until heavy soil, oil, etc. has been removed.
5.   Components are usually cleaned in the Ultrasonic Cleaner (USC):

NOTE: Position components in such a way as to prevent touching each other during the ultrasonic cleaning process; failure to do so could result in damage to the component.

     *   Close drain valve of USC.
     *   Fill USC with DI/UPW at least five inches or more to cover the component being cleaned.  Carefully place component(s) into USC using baskets, sheets of plastic, or containers as necessary to protect and contain the component(s).

        *   The valves(s) must NOT be completely submerged, the top of the valve and valve stem should remain above the water line.  Ensure there are no trapped air pockets under or within the component(s).

     *   Add 1-2% detergent to the USC tank.

        *   Usually about 300 ml (small USC) or 600 ml (large USC) of Micro90 detergent is added to the USC.  If using the 200gal large USC, add roughly 1 L of Liquinox.

     *   Turn on the USC heater (the temperature is typically set to 130°F (54°C)).
     *   Turn on the USC and allow the component(s) to ultrasonically clean for 50 minutes.  This time may be adjusted if the water is preheated.  NOTE: The UPW/detergent temperature shall be at least 130°F (54°C) for a minimum of 15 minutes.
     *   Turn off the USC heater and ultrasonic.  Don a new pair of nitrile gloves and inspect the valves(s) for cleanliness.  If the valve(s) do not appear to be clean, return the valve(s) to the ultrasonic bath and re-clean as necessary.  If the valve(s) appear to be clean, proceed.
6.   Rinse valve(s) in DI/UPW using one or all of the following methods:

  1.  Rinse valve(s) using DI/UPW until no soap bubbles are visible (approximately 5 minutes)
  2.  Dip visibly clean valve(s) in the triple rinse sink from left to right.
  3.  Ensure the components are thoroughly rinsed and water surface is free of soap bubbles.  Repeat if necessary.

  1.  Once thoroughly clean, dry parts in the nitrogen drying oven set to 100°C for ~ 10+ hours.

  1.  The nitrogen flow should be set to 50 PSI and 50 CFM.
  2.  Follow the STP baking procedure unless provided by the PI/PM

     *   CP-STP-CAV-CHEM-BAKE

  1.  Bag the components:

  1.  If the valve(s) are still hot from the oven, allow them to cool before handling.
  2.  Ensure components have dried completely before bagging.
  3.  Bag and seal each component separately.
  4.  Repeat process until all components are bagged.
  5.  Transport bagged components to the next work center.

Ashley Mitchell
Chem Rm: 757-269-7496
Cell: 757-434-2905
[https://www.jlab.org/div_dept/dir_off/public_affairs/logo/JLabEmailSig.png]
600 Kelvin Dr.
Suite 8, MS 55H
Newport News, VA 23606
www.jlab.org<http://www.jlab.org>

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://mailman.jlab.org/pipermail/pansophy/attachments/20211011/b1b41441/attachment-0001.html>