Search found 224 matches
- 19 Jul 2023, 16:48
- Forum: Biology, Physics...
- Topic: Electron Beam Deflection Tube - repairable?
- Replies: 1
- Views: 4336
Re: Electron Beam Deflection Tube - repairable?
Southern Biological is a supplier for 3B.
- 28 Jun 2023, 15:35
- Forum: Chemistry and Labware - General
- Topic: A suitable demo?
- Replies: 10
- Views: 6415
Re: A suitable demo?
One of our crazy old school chemistry teachers has a 1 M long piece of wood, has drilled little divots in it about 10cm apart. I fill each divot with a salt, we splash ethanol over the top carefully and light her up. Lovely in the dark all the coloured flames.
- 28 Jun 2023, 11:32
- Forum: Chemistry and Labware - General
- Topic: A suitable demo?
- Replies: 10
- Views: 6415
Re: A suitable demo?
Our teachers do this demo. Is done in a fume hood and a lab tech is always on hand. We use smaller quantities though. I can't see an issue with it.
- 22 Jun 2023, 13:57
- Forum: Biology, Physics...
- Topic: Blood Slides for biology pracs
- Replies: 2
- Views: 4868
Re: Blood Slides for biology pracs
Same as above. I am not aware of any changes, ours come from Southern or from Monash Uni.
- 22 Jun 2023, 12:09
- Forum: Miscellaneous
- Topic: Teachers
- Replies: 3
- Views: 5917
- 19 Jun 2023, 13:21
- Forum: Chemistry and Labware - General
- Topic: Using weight to find volume
- Replies: 3
- Views: 4644
Re: Using weight to find volume
I would imagine that for high school science either weight or volume would be accurate enough. This is where the % w/w or % w/v etc comes in. If you're weighing both it would be % w/w and if weighing the solid and measuring the liquid it would be % w/v. Mixing two liquids (eg Hcl) would be % v/v. H...
- 15 Jun 2023, 16:13
- Forum: Safety with Chemicals
- Topic: Victorian Gov Chemical Register
- Replies: 4
- Views: 4977
Re: Victorian Gov Chemical Register
No problem, if you want to do a video call send me a message and we'll set it up. You can share your screen and show me the issues if you haven't managed to get it sorted.
- 14 Jun 2023, 09:06
- Forum: Safety with Chemicals
- Topic: Victorian Gov Chemical Register
- Replies: 4
- Views: 4977
Re: Victorian Gov Chemical Register
For the Consequences/Likelihood, there is information on one of the tabs, it also says The level of risk can be assessed as per the directions below and in reference to Section 3.5.2 of the OHS Risk Management Procedure. Also, you will not find anywhere a column telling you what Consequences/Likelih...
- 13 Jun 2023, 16:16
- Forum: Safety with Chemicals
- Topic: Victorian Gov Chemical Register
- Replies: 4
- Views: 4977
Re: Victorian Gov Chemical Register
Make sure you have downloaded and working in Excel. If you are trying it in a google doc it won't work and you'll be in all sorts of pain. I also just downloaded the blank template to check it out... the first line does not work for some reason (as in picking the Risk ranking automatically) after yo...
- 09 Jun 2023, 08:41
- Forum: Safety with Chemicals
- Topic: Radioactive isotopes
- Replies: 17
- Views: 10591
- 07 Jun 2023, 15:50
- Forum: Safety with Chemicals
- Topic: Radioactive isotopes
- Replies: 17
- Views: 10591
Re: Radioactive isotopes
I'll pay you $20 towards beer for you...send them down here
- 06 Jun 2023, 11:03
- Forum: Safety with Chemicals
- Topic: Radioactive isotopes
- Replies: 17
- Views: 10591
Re: Radioactive isotopes
I believe the source sets that are available through our suppliers... when they are past their active date you can peal off the stickers and they can go in the bin.
We have not been given a directive to get rid of any of our sources.... all super safe anyway.
We have not been given a directive to get rid of any of our sources.... all super safe anyway.
- 31 May 2023, 08:57
- Forum: Safety with Chemicals
- Topic: face shields
- Replies: 4
- Views: 5779
Re: face shields
Oh my, what a disaster, glad it is going from your site. We also don't have it here. I have one of these with the appropriate filter for the nasties' I have onsite here. I can't remember the code off hand but I have a fine particulate canister and an acids or organics canister attached. You can mix ...
- 25 May 2023, 13:54
- Forum: Sourcing Materials & Eq Repairs
- Topic: Bromine
- Replies: 9
- Views: 6148
Re: Bromine
I would run it past head of science
- 25 May 2023, 09:12
- Forum: Sourcing Materials & Eq Repairs
- Topic: Bromine
- Replies: 9
- Views: 6148
Re: Bromine
You can get Bromine from Merck (very expensive for a once off demo), we only have the Bromine water on site... I have said 'no' to requests for anything different.
- 25 May 2023, 09:08
- Forum: Chemistry and Labware - General
- Topic: Burettes
- Replies: 2
- Views: 4232
Re: Burettes
Is all of them or just one or two ? Sounds like you have done pretty much all you can . If they are the ones with Teflon tips , I’m thinking the tip is damaged . You could try slicing a small bit off the end as parallel as you can with a Stanley knife . Failing that , the round filing cabinet might...
- 15 May 2023, 09:13
- Forum: Biology, Physics...
- Topic: Digital Oscilloscopes
- Replies: 2
- Views: 4696
Re: Digital Oscilloscopes
We have the Hameg HM 203-7
- 15 May 2023, 09:10
- Forum: Chemistry and Labware - General
- Topic: Chemicals not sold by Westlab or other common suppliers
- Replies: 13
- Views: 7121
Re: Chemicals not sold by Westlab or other common suppliers
Has anyone ever bought from Sigma? We used to get lab supplies from them all the time when I worked in medical research, but not sure about for a school. I was in a similar situation a couple of years ago with a science extension student. Setting up the account was very easy. I contacted one of the...
- 09 May 2023, 09:32
- Forum: Recipes and Pracs
- Topic: flame test in spray bottles??
- Replies: 28
- Views: 19870
Re: flame test in spray bottles??
We don't even really soak.... students dip, swirl around a bit then burn away.
- 08 May 2023, 15:20
- Forum: The Lab Tech Position
- Topic: Limit on number of Practicals done each week?
- Replies: 19
- Views: 11422
Re: Limit on number of Practicals done each week?
I just worked out our service factor (after figuring out what that was!) and it is 0.248! Although I do feel very busy (says me spending time here! :cheesy: ), I can't see it would need to be as high as 0.8. I would have nothing to do! And it's kind of my fault I am so busy as I was employed at 3 d...