Search found 1172 matches
- 26 Mar 2024, 06:39
- Forum: Safety with Chemicals
- Topic: Chemical Storage
- Replies: 14
- Views: 9746
Re: Chemical Storage
Segregate according the dangerous goods code is the simplest. Although DGC now only apply to transport, there is no issue with using this system for storage as it clearly states what can and can't be stored together eg oxidisers are to be stored a long way from flammables. Happy for you to PM me and...
- 26 Mar 2024, 06:33
- Forum: Miscellaneous
- Topic: Cleaning of Wicks Used in Alkanols prac
- Replies: 6
- Views: 7475
Re: Cleaning of Wicks Used in Alkanols prac
Yep - just label the spirit lamps and use the same ones for each chemical each time. I empty the lamps into a labelled bottle like Loopy does, but I put just leave the wicks in the lamps and store in the chem store (which is properly ventilated). Great that you have reached out for help. We are all ...
- 19 Mar 2024, 06:33
- Forum: Biology, Physics...
- Topic: frozen hearts - help!
- Replies: 10
- Views: 8196
Re: frozen hearts - help!
That's depressing. I hate it when brand new stuff comes back damaged.
- 18 Mar 2024, 11:39
- Forum: Biology, Physics...
- Topic: frozen hearts - help!
- Replies: 10
- Views: 8196
Re: frozen hearts - help!
Soak them in a bucket with nappysan overnight at least, then throw in the machine. What comes out comes out and what doesn't - depends how fussy your school is.
President lab coats sell theirs for a pretty good price and great quality if you need to replace.
President lab coats sell theirs for a pretty good price and great quality if you need to replace.
- 15 Mar 2024, 11:35
- Forum: Sourcing Materials & Eq Repairs
- Topic: Spring Balances
- Replies: 14
- Views: 10131
Re: Spring Balances
Watched a teacher, new to us but ten years plus experience, be given the role of Year 10 patron who then went onto try to be "mates" with all his students. Cooking pancakes in the labs on his from home gas stove (I put a stop to that), making hot chocolates for them all. It was driving me ...
- 15 Mar 2024, 08:02
- Forum: Biology, Physics...
- Topic: frozen hearts - help!
- Replies: 10
- Views: 8196
Re: frozen hearts - help!
No help to you now, but all the rules about defrosting meat in the fridge is the assumption you are going to eat it. Leaving them on a bench overnight would be fine. Probably doesn't matter if the hearts are still a little firm. Not sure on the pluck. Never had one that was frozen! Great idea using ...
- 14 Mar 2024, 08:41
- Forum: Sourcing Materials & Eq Repairs
- Topic: Spring Balances
- Replies: 14
- Views: 10131
Re: Spring Balances
They've stretched the springs, so just going to throw out and replace. Some were old metal ones and old plastic, how you can't see when the kids are doing the wrong thing, I don't know. I'm seeing more of that in recent times. Kids not being respectful, more inexperienced teachers that don't have g...
- 13 Mar 2024, 09:56
- Forum: Chemistry and Labware - General
- Topic: Waste from Redox Reactions
- Replies: 2
- Views: 2930
Re: Waste from Redox Reactions
I can't help except to ask if you subscribe to Science Assist? Comparatively small fee which gives you access to a lot of resources, including the ability to ask questions and have them answered by experts. Really useful for those tricky problems.
- 13 Mar 2024, 09:04
- Forum: Sourcing Materials & Eq Repairs
- Topic: Spring Balances
- Replies: 14
- Views: 10131
Re: Spring Balances
I've had good intentions and tried to repair. In the end, the broken ones ended up in the bin and I bought new ones. Maybe other people are more patient than me though!
Yeah, swinging them just sounds like a bad idea.
Yeah, swinging them just sounds like a bad idea.
- 11 Mar 2024, 07:52
- Forum: Safety with Chemicals
- Topic: Standard Operating Procedure (SOP) for removal of chemicals
- Replies: 10
- Views: 4587
Re: Standard Operating Procedure (SOP) for removal of chemicals
The trouble is, not everyone is "sensible". Students cannot be relied upon to be "sensible". Incidents will happen because we aren't being "sensible". The severity of those incidents will be determined by the level of risk associated with the activity. If teachers want ...
- 06 Mar 2024, 14:35
- Forum: Safety with Chemicals
- Topic: Standard Operating Procedure (SOP) for removal of chemicals
- Replies: 10
- Views: 4587
Re: Standard Operating Procedure (SOP) for removal of chemicals
Welcome aboard! I don't think you would need to be as detailed as that. Having a list of chemicals going out for disposal, with a date they were collected would be sufficient. Ensure that your chemical register is updated to show any chemicals that are gone for good. When chemicals are collected, do...
- 04 Mar 2024, 10:21
- Forum: Biology, Physics...
- Topic: rat dissection
- Replies: 23
- Views: 16250
Re: rat dissection
Piglets from Dissection Connection. We've never used rats.
Just done as a class demo.
Just done as a class demo.
- 29 Feb 2024, 14:33
- Forum: Announcements
- Topic: Welcome back everyone
- Replies: 18
- Views: 6845
Re: Welcome back everyone
My Coordinator and I had a similar theory. That someone has raced back in to put it away and thumped it a bit too hard, causing a slight crack. Then with a bit of pressure - ka-pop. We restrict who can access the chem store but I did have a heap of time off last year. It hasn't happened before, than...
- 27 Feb 2024, 11:21
- Forum: Announcements
- Topic: Welcome back everyone
- Replies: 18
- Views: 6845
Re: Welcome back everyone
My ones from Adelab have a finger hole piece next to the opening. Think Jug Band style. (And for a laugh, or maybe make you cry - I'm never sure which- Look for the Christmas Jug Band singing "Daddy's Drinking Up Our Christmas". It is appalling and I am always, always confused about how I ...
- 23 Feb 2024, 09:05
- Forum: Announcements
- Topic: Welcome back everyone
- Replies: 18
- Views: 6845
Re: Welcome back everyone
That's 2 winchesters I have heard this happening to in the last 3 months... never in my life as a lab tech has that happened before. I would suggest everyone check their old bottles. Maybe they are not as good as they used to be. I'm also going to be checking each new bottle before it gets put into...
- 19 Feb 2024, 10:57
- Forum: Recipes and Pracs
- Topic: surface area to volume experiment
- Replies: 2
- Views: 2709
Re: surface area to volume experiment
Potato cubes in iodine....works really well. https://www.google.com/search?q=surface+are+to+volume+experiment+potato+and+iodine+solution&client=firefox-b-d&sca_esv=455241588eaade9a&ei=BJnSZc_CG7mUseMPi8iokAQ&oq=surface+are+to+volume+experiment+potato+and+iodine&gs_lp=Egxnd3Mtd2l...
- 16 Feb 2024, 13:42
- Forum: Announcements
- Topic: Welcome back everyone
- Replies: 18
- Views: 6845
Re: Welcome back everyone
And as a delayed welcome back, I thought we had a waste bottle with kerosene in it has leaked a little. When I went to move the other bottles off the shelf to sort it out and clean it up, I discovered that the organic waste bottle was completely shattered at the base. It must have happened over the ...
- 16 Feb 2024, 13:39
- Forum: Announcements
- Topic: Welcome back everyone
- Replies: 18
- Views: 6845
- 14 Feb 2024, 11:19
- Forum: Announcements
- Topic: Welcome back everyone
- Replies: 18
- Views: 6845
Re: Welcome back everyone
Maybe they just hit the ground and kept running, away... Welcome back!! that's exactly how I felt. Sadly still here. Arrived first day back and Fridge/freezer full of Dissection had gone off!! OMG this is the second time in 29years. Hopfully I never see it again. Our maintenance men removed from th...
- 13 Feb 2024, 08:06
- Forum: Announcements
- Topic: Welcome back everyone
- Replies: 18
- Views: 6845
Re: Welcome back everyone
Maybe they just hit the ground and kept running, away...