The Treatment

Written by NTS, Jan 2013. Updated NTS, 20160224

Before you begin

• Work in LASE batcave solvent hood—turn it on

• Micro-90 bottle is under solvent hood, ACETONE/IPA/Waste is in solvent cabinet

• Beakers are on the shelf by the hood, covered by vacuum foil

• Bucket (basket) should be in Micro-90 beaker

• Be careful bucket doesn’t touch anything, and you only touch handle

Micro-90

1. Put parts in bucket carefully

2. Put about 2” of water into sonicator, using sprayer

3. Put half cap full of micro90 into beaker

4. Use sprayer to fill water level past all parts

   1. spray side of beaker

   2. minimize bubbles

5. Put beaker in sonicator

6. Make sure beaker doesn’t float; if it does:

   1. ultra drain sonicator (drains slowly, press start and stop)

   2. Spray more water in beaker

7. Loft bucket with metal strip

8. Start generator (sonication)

9. Start timer

10. Sonicate 20 minutes

11. When micro90 is done

    1. turn off generator

    2. take out metal strip and lower bucket

12. Micro90 solution rinsing

    1. If there is toxic stuff in the micro90 solution, you must collect ALL of the wastewater:

       1. Do Not cascade rinse the micro90 beaker

       2. Nearly fill it with water and then pour it into a waste container. Use the appropriate funnel and waste container. Be careful not to drip. Use an extra person or two as needed.

       3. Do this until there is no toxic stuff in the micro90 beaker (visibly), three times at minimum

       4. Get a carboy beforehand if you will need room for a lot of wastewater

       5. Proceed to Step 12B when done

    2. If there is no toxic stuff in the micro90 solution

       1. Move beaker to sink, and cascade rinse with DI til there are no soap bubbles in the sink

13. After you are done with the micro90 rinsing, you want to get rid of the bucket bubbles

    1. You’ll probably have to use the sprayer to take some bubbles off the top and perhaps lift up the bucket by hand to spray sides, top, and bottom. Bubbles will eventually lessen and go away.

14. When bubbles are gone, transfer bucket into empty ACETONE beaker

    1. Do not get any water in the ACETONE beaker, other than minimal drops from bucket/parts

15. Micro90 beaker cleanup

    1. If there is toxic stuff in the micro90 solution (there shouldn’t be!), you shouldn’t have moved the bucket. Keep the bucket in the micro90 beaker and return to Step 12.

    2. If there is not toxic stuff in micro90 beaker

       1. Dump beaker out in sink

       2. Cascade rinse beaker

       3. Dump out beaker

       4. Remove beaker from solvent hood

       5. Replace vacuum foil cover

       6. Put back on shelf

Acetone

1. Get ACETONE from cabinet and pour into ACETONE beaker (over bucket and parts)

2. Put away ACETONE

3. See Steps 5-11, do for ACETONE

   1. Don’t spray water in ACETONE beaker, drain bath if beaker floats

4. Take ACETONE beaker out of sonicator

5. Transfer bucket to IPA beaker (empty)

6. Get waste container, place in sink, and uncap (from solvent cabinet)

7. Put funnel in waste container, and some kimwipes down on the hood for beaker dribble

8. Slowly pour ACETONE into waste using the beaker’s spigot

9. Remove ACETONE beaker from solvent hood

10. Replace foil cover on ACETONE beaker and put on shelf

11. Remove funnel and cap waste bottle

12. Replace waste in solvent cabinet

IPA

1. Do Steps 16-19 (including Steps 5-11) for IPA

2. Remove parts from bucket using appropriate technique into proper container e.g. Ultra clean tweezers, dumping; vacuum foil

3. Replace bucket in micro90 beaker

4. Dispose of IPA as in Steps 21-27