Recent content by Tech A

Not sure your average cotton bud contains any plastic now? Ours seem to be more paper based :)

That's true - they do! But they do the job :)

We've used Gresswell before now, part of the WF Education group https://www.gresswell.co.uk/supplies/book-care-archival/book-coverings/demcor-slip-over-book-covers.html

Better Equipped sell something called Rectified ethanol - has anyone used any of this, is it the same as IMS/IDA ? https://www.betterequipped.co.uk/ethanol-rectified-96-grg-contains-bitrex-500ml-un-5312

Does anyone have any recommendations for the type of elastic to buy to replace that used for goggles? The last lot we bought from a material shop wasn't the best...

Check out GL272 on Cleapss, it gives all the information to correctly sterilise. Basically fill to bottom of trivet, free steam for 5 mins, then put the weights on and once it reaches pressure, time for 15 mins. (I keep my hotplate on full to ensure pressure is maintained!)

It wasn't that, but looks a useful source of information, thanks!

Hi everyone Some time ago I had a website bookmarked which gave lots of methods for removal of chemical stains - for things like glassware, not clothing! But following computer issues I lost all my bookmarks... Does anyone happen to know what website this may have been? Google hasn't come up...

I've had a fair few students sent for those!

Hi Emily, I'm sure I read somewhere that organic garlic isn't irratiated :)

We have a small container of mercury, also kept in the toxics cupboard, which comes out for a viewing every now and then. We also have a tray of jars containing a mole of various elements and compounds. And a jar containing a preserved mole...! No idea where it came from as it's been here longer...

What do you use to dissolve them, then what do you use as the solvent to run it?

We have trolleys like this, not for power packs but one for storing/moving microscopes and 2 more for generally moving equipment to classrooms. Have found them to be very sturdy and easy to manouver, I'm sure they handle power packs without a problem. Several places supply them so shop around...

We used Chemgo last year too, very good service and the cheapest quote. Also didn't have a problem with some 'unknowns', or with the odd bottle of something we came across that wasn't on the list for the quote ;)

Snap! Some mornings it is 11 C (16 C is the legal min) in the prep room when I get in, so I keep my coat on until it warms up a bit. Problem is due to the boilers not working properly, but the whole school is having the heating revamped. As the boilers supplying the science dept are a problem...