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.

 Wednesday, April 24, 2019, 10:00:

The sink to the rear of the cold lab beneath the paper towel dispenser has sprung a leak. The leak is most apparent when the hot water tap is used. It appears right at the back, behind the sink basin where the pipes meet the counter top to faucet.

Entered under fault report 12204 

Currently 'Tagged' with bags over the handles to discourage use..

Thursday, July 04, 2019, 14:12

Fixed (Darwin)

Purchased o-rings and fixed in May 2019

 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.

 Friday, September 27, 2019, 13:54: 

There is a pin hole water leak coming from the DIW supply pipe going into the ISAC B1 hot lab - rm 06. It appears to be on the solder / joint. The leak is very small at this point. Mostly just a drip. 

Fault 12701

 Fritsch Pulverisette 5 Ball Mill status:

Wednesday, December 18, 2019, 13:48: 

SN 05.6010 / 03005: Inspected. Ok

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

See attached.

 Monday, January 13, 2020, 10:30: Leak noted in HC area by Chad to ISAC Ops.

Monday, January 13, 2020, 13:32: The water leak was found to be coming from the sinks in the ISAC B1 Cold Lab. Target cleaning was occurring at the time as well. Soap / detergent smell was noted in the water that had dripped down to the area in front of the South Hot Cell in ISAC B2.

Rob Shanks entered a fault report. 

Running the main cold lab tap or the fume hood tap did not yield a leak, however, dumping a large quantity of water into the 2 main sinks in the ISAC B1 cold lab causes the leak to become apparent. It's likely the large volume of water causes a brief back flow in the pipe in ISAC B2 which then leaks until the flow recovers.

The pipe joint with the leak has been circled in the attached photo. 

Anders & I both witnessed the leak to confirm the source. 

 Temp was noted to be high @ 50 deg C.

Adjusted the regulators to 35 deg C. Ran both the eye-wash station & shower. Waited 20 minutes. Ran them again and tuned.

Monday, July 13, 2020, 10:00: Complete. 

  Fritsch Pulverisette 5 Ball Mill status:

Monday, July 13, 2020, 11:22: 

SN 05.6010 / 03005: Inspected. Ok

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

 Odd noises reported. Darwin & Marla. "Like a rock caught in a fan"

AS -  Re-installed bolts to run. Note, balancing feet underneath were uneven. Especially the front right foot was roughly 3/8" out of position. No jars installed.

Ref: Document-42673 - Commissioning Plan - Planetary Mill Pulverisette 5. Use as a guideline. 

Wednesday, September 16, 2020, 10:39: Run @ 50 RPM / 1 min. Operation sounds ok. Balanced. 

Wednesday, September 16, 2020, 10:41: Run @ 100 RPM / 1 min. Operation sounds ok. Balanced & quiet. 

Wednesday, September 16, 2020, 10:43: Run @ 150 RPM / 1 min. Operation sounds ok. Balanced & quiet. 

Wednesday, September 16, 2020, 10:45: Run @ 200 RPM / 1 min. Operation sounds ok. Balanced & quiet. 

Wednesday, September 16, 2020, 10:48: Run @ 250 RPM / 1 min. Operation sounds ok. Balanced, but there is a "hum" that starts around 230 RPM. Disappears around 270 RPM

Wednesday, September 16, 2020, 10:50: Run @ 300 & up to 350 RPM / 1 min. Operation sounds ok. Balanced & quiet. No "hum"  

Wednesday, September 16, 2020, 10:57: Run @ 400 RPM / 1 min (Max RPM). Operation sounds ok. Balanced & quiet. 

Setup Jars w/ safe-lock assembly.

Jar A: 6349 g

Jar B: 6368 g

Wednesday, September 16, 2020, 11:25: Run @ 100 RPM / 1 min. Balanced & quiet. Tighten safe lock.

Wednesday, September 16, 2020, 11:27: Run @ 200 RPM / 1 min. Balanced. Tighten safe lock.

Wednesday, September 16, 2020, 11:33: Run @ 300 RPM / 1 min. Operation sounds ok. Balanced. Tighten safe lock.

Wednesday, September 16, 2020, 11:37: Run @ 400 RPM / 1 min (Max RPM). Balanced. Tighten safe lock.

Wednesday, September 16, 2020, 11:52: Review w/ Darwin & Marla. Operation sounds normal. 

Note* When performing maintenance. Check the balance / feet positions. Confirm there are no loose screws as well. 

Wednesday, September 16, 2020, 14:53: Checked and re-checked with the back panel removed. Note, as the jars were loaded with graphite, a crackling sound did occur. Further testing w/ & w/o. It may be the jars with the loaded materials. Will test with water in the jars. Panel re-installed. Ran again @ 100 & 400 RPM / 1 min (Max RPM). Operation sounds ok. Balanced & quiet. - AS

   Fritsch Pulverisette 5 Ball Mill status:

Monday, July 13, 2020, 11:22: 

SN 05.6010 / 03005: Inspected. Ok

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

Tuesday, February 09, 2021, 06:53: Evaporator 2 off. Evaporator 1 ok, Fume hoods ok. Ar glove box off. Ready for planned power outage.

Should last from 0800 to1200.

Tuesday, February 09, 2021, 11:30: Confirmation there was no EF14/15 trip. Ar Glove box on. Evaporator 2 back on.

    Fritsch Pulverisette 5 Ball Mill status:

Tuesday, August 03, 2021, 10:33 

SN 05.6010 / 03005: Inspected. Ok

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

 Tuesday, December 07, 2021, 09:23:

SN 05.6010 / 03005: Inspected. Ok

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

 Thursday, April 07, 2022, 11:55:

It was noticed on Wednesday that the glove box was not regulating pressure properly & the H2O sensor was reading (Very unstable) anywhere from 30 ppm to 0.25%. The box was isolated & checked for leaks. Unable to vent properly except manually.

One of the solenoid valves for venting the glove box fails to open. Will need replacement. The filter also appears to be saturated. Regeneration is required once the solenoid valve is replaced. Prior to replacing the valves, the LaC must be safely removed. This process is being initiated. (John W. & Darwin O.)

Thursday, April 07, 2022, 12:00: While preparing to remove LaC, the roughing pump (1) stopped operating. It didn't appear to seize, just no longer powered up. Multiple outlets attempted. Vacuum group contacted & they brought us a replacement.

Thursday, April 07, 2022, 12:21: Pump was replaced. (Pump 2).

Friday, April 22, 2022, 11:30: The roughing pump failed (Pump 2) & shut-off. Appears to have seized. Oil?

Was replaced by Vacuum Group in the afternoon with 3rd pump.

Monday, April 25, 2022, 09:13: Roughing pump failed & shut-off. (Pump 3). The oil was completely drawn out of it & into the ventilation line (To EF14).

Fault: 14843

Friday, June 01, 2022, 12:00: RP changed with a new IDP15 roughing pump. Fixed. 

Fritsch Pulverisette 5 Ball Mill status:

Tuesday, July 12, 2022, 11:06:

SN 05.6010 / 03005: Inspected. Ok

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

 Fritsch Pulverisette 5 Ball Mill status:

Friday, December 16, 2022, 07:35 

SN 05.6010 / 03005: Inspected. Ok

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

 Thursday, February 02, 2023, 10:14: Cold Lab Eyewash & shower station ran. Ok.

  Fritsch Pulverisette 5 Ball Mill status:

Friday, June 30, 2023, 12:20:

SN 05.6010 / 03005: Inspected. Ok

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