Recent content by Tech A

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    Cheek Cells

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

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

    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
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    Ethanol vs IDA and licensing requirements?

    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
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    Elastic for goggles

    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...
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    Prestige High dome 6L pressure cooker

    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!)
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    Stain removal

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

    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...
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    Staff leaving labs

    I've had a fair few students sent for those!
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    Growing Garlic Roots in Water

    Hi Emily, I'm sure I read somewhere that organic garlic isn't irratiated :)
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    0.5 mole of mercury, worth keeping?

    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...
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    Food colouring chromatography

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

    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...
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    Chemical waste.. who gets yours?

    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 ;)
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    How many wear labcoats

    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...
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