Search found 155 matches
- 19 May 2021, 12:53
- Forum: Safety with Chemicals
- Topic: New CSIS is finally here.
- Replies: 30
- Views: 10026
Re: New CSIS is finally here.
In 3.2.3.2 of the new CSIS document has a table where guidance on separation and segregation requirements for chemical classification types state that some chemical groups have to be 3 and 5 metre apart or stored in a separate store.
- 26 Mar 2021, 09:03
- Forum: Chemistry and Labware - General
- Topic: Safety glasses hygiene
- Replies: 54
- Views: 24276
Re: Safety glasses hygiene
I've found the screws have started to rust and the arms are breaking at the screw point.
- 29 Nov 2019, 06:54
- Forum: Chemistry and Labware - General
- Topic: Wooden Test tube racks
- Replies: 6
- Views: 7055
Re: Wooden Test tube racks
Revarnished without sanding. It's a big job to sand the whole rack back to bare wood. Haven't had a single one peel back or the varnish bubble.
- 28 Nov 2019, 06:56
- Forum: Chemistry and Labware - General
- Topic: Wooden Test tube racks
- Replies: 6
- Views: 7055
Re: Wooden Test tube racks
I have revarnished some of mine that has deteriorated over the years. Definitely extended their life span.
- 15 Nov 2019, 12:23
- Forum: Safety with Chemicals
- Topic: LPG limits
- Replies: 13
- Views: 9968
Re: LPG limits
This is from CSIS Class 2.1 - Flammable gases ●300 kg of LP gas when connected for use (e.g. to a stove or heater). The licence for LPG tanks on DET school sites is part of the maintenance contract administered by Properties Directorate. ●150 kg of LPG not connected for use (reserve cylinders, reser...
- 14 Nov 2019, 13:06
- Forum: Safety with Chemicals
- Topic: CSIS training
- Replies: 7
- Views: 6231
Re: CSIS training
With the previous CSIS it only had to be completed once and catch up with new staff. The new one seems to have to be done every 5 years.
- 28 Aug 2019, 11:54
- Forum: Announcements
- Topic: Will you be the lucky winner of the Golden Ticket?
- Replies: 21
- Views: 26271
Re: Will you be the lucky winner of the Golden Ticket?
Got my blue ticket. Thanks Westlab team
- 27 Aug 2019, 07:52
- Forum: Announcements
- Topic: Will you be the lucky winner of the Golden Ticket?
- Replies: 21
- Views: 26271
Re: Will you be the lucky winner of the Golden Ticket?
No ticket here yet.
- 07 Jun 2019, 09:04
- Forum: The Polling Booth
- Topic: Topic Suggestions for Future PD Sessions
- Replies: 12
- Views: 22831
Re: Topic Suggestions for Future PD Sessions
Thanks Westlab. I received the stoppers yesterday.
- 07 Jun 2019, 07:44
- Forum: Safety with Chemicals
- Topic: Latest Aus std AS1940
- Replies: 5
- Views: 7158
Re: Latest Aus std AS1940
The Chemical Safety in Schools package has the quantities that are allowed to be stored on school premises. This includes the maximum quantities per school block.
- 22 May 2019, 07:51
- Forum: Recipes and Pracs
- Topic: year 12 ester prac
- Replies: 1
- Views: 3892
Re: year 12 ester prac
I have used salicylic acid before and have used it as a solid.
Add 5g salicylic acid to 25mL Methanol in a dry 50mL round bottom flask. Add boiling chips and reflux for 90 minutes.
I haven't used decanoic acid before.
Add 5g salicylic acid to 25mL Methanol in a dry 50mL round bottom flask. Add boiling chips and reflux for 90 minutes.
I haven't used decanoic acid before.
- 20 Feb 2019, 06:52
- Forum: Biology, Physics...
- Topic: Physics prac - Parallel wire conductors
- Replies: 3
- Views: 7285
Re: Physics prac - Parallel wire conductors
We use alfoil 250mm long, 12mm wide and 20mm apart attached to firm pieces of cardboard either end. Works well
- 07 Feb 2019, 07:06
- Forum: Chemistry and Labware - General
- Topic: Chemical Suppliers
- Replies: 11
- Views: 9765
Re: Chemical Suppliers
I bought copper sulfate powder and when students dissolved in water and crystallised the solution many of the crystals were green. When I contacted them they advised they buy in bulk, make a huge pile to mix it up then bottle it themselves. Hence, some copper chloride might be present. I don't buy c...
- 01 Feb 2019, 07:17
- Forum: Chemistry and Labware - General
- Topic: Help - mixed chemicals
- Replies: 5
- Views: 6347
Re: Help - mixed chemicals
Use sodium carbonate to precipitate out the Cu and Mg, decant the solution and bring to neutral and pour down the sink. Then wrap up the solids and dispose of in the rubbish.
- 19 Dec 2018, 07:50
- Forum: Chemistry and Labware - General
- Topic: Another unknown item
- Replies: 9
- Views: 8935
Re: Another unknown item
It might be a Ruben's tube.
Gas goes in one end, you cover the open end with a balloon membrane and play music (as in a radio or mobile phone) against the membrane. When you light it the flames jump to the beat of the bass notes.
Gas goes in one end, you cover the open end with a balloon membrane and play music (as in a radio or mobile phone) against the membrane. When you light it the flames jump to the beat of the bass notes.
- 29 Jun 2018, 11:04
- Forum: Announcements
- Topic: Technician recognition
- Replies: 14
- Views: 17453
Re: Technician recognition
Technician Acknowledgement Day - Technowledgement Day or week
- 26 Jun 2018, 12:40
- Forum: Chemistry and Labware - General
- Topic: Light gates
- Replies: 2
- Views: 4698
Re: Light gates
Vernier has a Sound Level Sensor that is a simple, easily-operated sensor to measure and investigate sound levels in classroom environments but it is not a gate. You can purchase a 'Noise Gate' but I don't think it is used with Data Loggers.
- 19 Jun 2018, 14:29
- Forum: Sourcing Materials & Eq Repairs
- Topic: Measuring Cylinders
- Replies: 11
- Views: 7861
Re: Measuring Cylinders
I purchased the blue based ones. If they fall over and the sleeve plastic is not right at the top the measuring cylinder breaks fairly readily. They are not strong glass and I wouldn't buy them again.
- 16 Mar 2018, 06:49
- Forum: Sourcing Materials & Eq Repairs
- Topic: Turn around time for Equipment orders?
- Replies: 12
- Views: 6803
Re: Turn around time for Equipment orders?
My last Haines order came in 2 weeks. The only time they were late before this was when there were items on back order.
- 21 Feb 2018, 12:50
- Forum: Announcements
- Topic: Important Message from the SLAMN Team
- Replies: 8
- Views: 7785
Re: Important Message from the SLAMN Team
I missed last year and was looking forward to this year. The conference was such a great networking opportunity and the knowledge and ideas learnt were second to none. Thank you for your organisation and hard work.