Friday, January 19, 2024, 10:19

This is a belated entry.  The regeneration was performed successfully on December 20th, 2023. 

Tuesday, March 12, 2024, 15:21

Hotlab ISAC1 B1

I performed a regeneration of the glovebox catalyst.  I also swapped the O2 sensor as the old one had outlived its useful life.  The glovebox will be reestablishing equilibrium for a day or two.  Please do not panic if you see high moisture or O2 values, all is good.   Thanks,

Darwin

 Monday, April 15, 2024, 10:50: The old IDP15 RP was not pumping the antechamber down properly. An exchange IDP15 pump is loaned to us from vacuum group. Once the tip seals on it are replaced, we will swap it again.

Applicable work permit: I2024-04-12--2. Status: Returned. 

 Thursday, June 20, 2024, 13:28

All lines, pump, blower, were found in working condition. From a previous issue with corrosion of lines connecting pumps, it is recommended that we check the ability of the pump to achieve full vacuum during inspections.  Currently full vacuum was observed while checking.  

The nipple connecting the argon gas tank to the regulator needs replacing.  Aaron will order it.  

Tuesday, October 15, 2024, 09:22

The glovebox catalyst was regenerated.  No issues.  Removed TCE and PVB from inside the glovebox.  These were vestiges from the previous UCx production process.

 Fritsch Pulverisette 5 Ball Mill status:

Monday, December 16, 2024, 12:12:

SN 05.6010 / 03005: Inspected. Ok. 

SN 05.6000 / 00365: Currently disassembled / out of service. (Under Process status until repaired, re-assembled, inspected, & tested)

All the fumehood pumps in the ISAC-I hot and cold labs got tripped off when the MCC-X was powered down (See ISAC WP#2011-03-30-5). No reaction process is done inside the  fumehoods, so the pumps are ok to be left off for now until the MCC-X work is done.

Tue Apr 12 12:00:52 2011:  The hot lab glove box regeneration was started yesterday (April 11, 2011).  "Before regeneration, the O2 level was 97 ppm, The H2O level was 47 ppm. After restarting circulation through the dry train, the levels immediately started dropping. At 11:30 today, the O2 was @ 1.76 ppm, the H2O @ 11.2 ppm." (Marik). 

John Wong wrote:

All the fumehood pumps in the ISAC-I hot and cold labs got tripped off when the MCC-X was powered down (See ISAC WP#2011-03-30-5). No reaction process is done inside the  fumehoods, so the pumps are ok to be left off for now until the MCC-X work is done.

On 3/31/2011 2:01 PM, Jonathan Aoki wrote:
> Razvan and I took a closer look.  We found that power to the fumehoods
> likely was not lost (they are fed from a different panel), but that EF14
> and EF15 would have tripped off.  These two fans serve the room 06 and 07
> fumehoods.
>
> This is an oversight on my part and I apologize for any inconvenience --
> EF14 and 15 are clearly stated on P-370's directory.  I hope that no
> damage was done.
>
> I will leave it to your discretion, but this (in my opinion) is worthy of
> an NCR.  I've updated my planned power outage notes.  This should not
> happen again.
>
> Jon
>
>
>> Thank Jon.
>>
>> Pierre
>>
>> Le 2011-03-31 à 13:37, "Jonathan Aoki"<jonaoki@triumf.ca>  a écrit :
>>
>>> Razvan&  Franco,
>>>
>>> Yesterday, during the MCC-X power down there was one unexpected event --
>>> the fumehoods in Marik's cold/hot labs tripped off.
>>>
>>> According to the documentation that I have, the following panels were to
>>> be affected:
>>> P-370
>>> P-378
>>> P-384
>>> P-396
>>> P-418
>>>
>>> I have print-outs of all of the circuit directories and I don't see any
>>> mention of the fumehood fans.
>>>
>>> Can you please trace the fans' electrical feed and let me know so that I
>>> can update our directories?
>>>
>>> Thanks,
>>> Jon
>>>
>>
>

Wed Apr 13 13:53:46 2011

I've setup a box of cloth booties for entering the hotlab.  They are
washable so please use them.  I also have some paper booties there if you
like using them, but it can be costly to keep stocking them up, plus the
fee to throw them away.

As per RPG, before you exit the hotlab please check yourself.  If the
cloth booties are clean of radiation, please put the them back to the box.
 I'll ask to get them wash every now and then.

Tuesday, February 28, 2012, 11:31

Hi All,

Hope you all find the TIS/RH elog useful :)  There are a few things I want to share with you.  

Did you know that you can make comments to the existing entries by using the "REPLY" function, so you can keep all the related entries in the same subjects?  Yap!  By doing that, we all keep the elogs organized :) 

If you are using shared computers, please remember to log out when you finish with the elog.  I suggest you to NOT check the "Keep me logged in..." box when you sign in. 

If you have any questions/comments please feel free to let me know.  

TIS/RH admin,

John Wong

*** All users are subscribed to the General elog.  If you do not want to receive emails from the General elog, you can unsubscribe by disable the automatic email notifications in the "Config" setting. ***

ISAC operations called to check that equipment in the labs were OK for the non active water to be off for a short time. I gave the OK after having checked that both evaporators are off. The system will be bled for air.

 Tuesday, August 08, 2017, 14:28

Alarm for glove box went off this afternoon.

1person went to put arms in and alarm sounded.

Ar good = ~900psi

H2O/ O2 levels fine.

Gloves stuck out straight, but when touched very clear the pressure was low inside box.

Touch screen said ~"pressure exceeded +/-10" pressure"

Increased amount of Ar going into glove box by a small amount.

Ar going into/out of glove box ceased while alarm going off.

Pressed continue to reset and glove box went back to normal...

 Wednesday, December 20, 2017, 09:02

Replaced Argon tank for glove box, full tank of Ar ~2350psi.

Wednesday, January 3, 2018, 11:59

Water turned back on, no leaks detected.

Glove box checked, O2 and H2O levels good.

 Tuesday, January 23, 2018, 11:55

Portable glove box with everything inside, contaminated beakers, pellets and BeO dissolved in acid were all removed from the cold lab today!!!

Transported for waste removal.

 Wednesday, January 31, 2018, 13:31

3 x lab safety mirrors have been installed in the hot lab, now all locations in the lab are visible from the door.

First mirrow in 1st photo allows visibility behind evap1; second and third mirrors in 2nd photo shows visibility between glove box and evap2, as well as visibility behind evap2

A regeneration of the Ar Glove box had been performed Monday, 04, Feb, 2019. At some point during the night of the 4/5, a leak of volatile materials burst out of the vent line inside the control box housing the fuses, solenoid valves, & electrical components. The volatile liquid, determined to likely contain Trichloroethylene, ate through the plug holding one of the 250 V 4A fuses. The plug then shorted to the glove box itself and the glove box main touch screen & controls completely shut off. The H2O & O2 monitors still worked, however we were unable to allow any Ar back into the box. A noticeable electrical / burning smell was found in the morning of the 5th and the cover removed. A highly irritating chemical smell was also found and respirators were then put to use.

A work permit (I2019-02-05-3) was opened for the cleanup & inspection of the fuses and electrical components. Darwin & I spent the afternoon of the 5th to cleanup the volatile liquid. It was determined that the glove box was temporarily ok as it was still maintaining a low oxygen atmosphere (below 200 ppm)

On the sixth we changed out the melted fuse plug and replaced the fuse however the Ar glove box did not respond in kind. 

Thursday, February 07, 2019, 08:00: Contacted Randy Boehm. He determined the lines were still alive, including the small control box and 4 fuse plugs. We changed two of the 10A fuses and cleaned the plugs. The touchscreen came back.

Thursday, February 07, 2019, 09:15: Contacted Darwin. Initially the Ar glove box did not purge and the solenoid valves did not respond, however 10A Fuse #F1 & 4A Fuse #F3 just needed to be seated properly. 

The glove box was able to be purged & made stable.

The source of the main volatile leak has not yet been determined completely (Thursday, February 07, 2019, 11:25) however it will be investigated this afternoon. 

In the meantime do not use the Ar Glove box 'Regeneration' function.

Friday, February 08, 2019: The source of the leak was determined to be the vent line leading out from the last solenoid in the control box and out to the regeneration purge /  vent outlet. It has a pin hole leak mid-line and a clear 'burst' from the fitting leading into the solenoid valve. Another noteworthy issue was found. The regeneration purge / vent outlet leads directly out into the hot lab atmosphere. During any regeneration, a small amount of TCE & material is released from the argon glove box.

A non-conformance is issued (NCR 12029) and a work permit plan is being setup. 

The line main vent line is to be replaced with lengths of 3/8" x 0.040" wt SS tubing and the regen purge/vent outlet re-linked to the nuclear ventilation. RPG has issued P100 Organic vapor / Acid gas cartridges for use in the repair.

Will update with the upcoming work permit*

The Ar glove box issues ( https://elog.triumf.ca/TIS/General/23 ) have been fixed.

Quoted from work permit: I2019-03-19-4

RPG checked the old SS lines. They were clear of contamination although still contained TCE. The TCE was cleaned out & removed.

The Ar glove box is connected properly to the nuclear ventilation as well as having the added filter / catch. The SS lines were replaced & valves cleaned. A large clog was found in the vent line and has been removed. Will now be able to test the regeneration function of the glove box.

-A regeneration should be performed monitored to test the lines for the glove box to be officially fixed.

The blockage was found on the exit of the Ar Glove Box. The blockage was held within a Swagelok check valve (P/N - B4CP2-1/3 - https://www.swagelok.com/en/catalog/Product/Detail?part=B-4CP2-1/3). It may have been installed intentionally, it may have been assumed to be a 1/4" brass pipe nipple. At any rate it was completely plugged and

did not allow for proper venting of the regeneration lines. Pictures of the blocked valve are included. The regeneration function is ready to be tested.

 Fritsch Pulverisette 5 Ball Mill status:

SN 05.6010 / 03005: Inspected July 5, 2019. Ok

SN 05.6000 / 00365: Currently disassembled / out of service. (Under Process status until repaired, re-assembled, inspected, & tested)

See attached.