Search found 720 matches

by bigmack
17 May 2016, 15:20
Forum: Recipes and Pracs
Topic: Acids on carbonates
Replies: 8
Views: 4180

Re: Acids on carbonates

Not sure if you mean to end up with an empty egg shell Samantham , but I recall as kids making a small hole at each end of the egg and blowing the contents of the egg out the other end . Can't remember if the membrane came out with it or not . From memory we labouriously scratch the hole with a pen ...
by bigmack
15 May 2016, 17:58
Forum: Miscellaneous
Topic: Find a GHS labeled product challenge
Replies: 11
Views: 7343

Re: Find a GHS labeled product challenge

At my other school I am training up a new Labbie .I found the Container of Copper Sulfate that come from SSA with a GHS label so I could show her what they look like and the important stuff that needs to go on a GHS label .

Guess what...it had no signal word on it :clap3: ....there is no hope
by bigmack
12 May 2016, 09:05
Forum: Miscellaneous
Topic: Find a GHS labeled product challenge
Replies: 11
Views: 7343

Find a GHS labeled product challenge

I've been wondering how serious the manufacturers and suppliers are about all this GHS stuff . In the last month I have received 7 chemicals between the two schools I'm at and IIRC only 1 was in GHS format. So I wondered about domestic Chemicals .I had a pretty good look in the cleaning section of o...
by bigmack
11 May 2016, 19:12
Forum: Miscellaneous
Topic: Storing Alligator wires
Replies: 14
Views: 9653

Re: Storing Alligator wires

Hmm....My wife is a Physics teacher and dodgy leads are one of her pet hates ....which becomes a problem of mine ...strangely enough... :whistling2: ...whinge ..whinge ..".Oh really darling ...you spent the whole period walking around each group trying to work out why there light bulbs won't li...
by bigmack
11 May 2016, 18:17
Forum: Safety with Chemicals
Topic: Chemical Store "odours"
Replies: 21
Views: 9642

Re: Chemical Store "odours"

Ours is about 15 years old .It has its odour but I don't mind it :wub: . It's fitted with an exhaust fan which comes on when you turn on the lights and remains on for about 10-15 minutes after the lights are switched off .The door is fairly tight fitting and there is minimal to no smell outside it ....
by bigmack
06 May 2016, 09:49
Forum: Chemistry and Labware - General
Topic: Plaster of Paris
Replies: 10
Views: 5165

Re: Plaster of Paris

Just went to put this away .The label says Chem supply Plaster of paris. Chemwatch says this is non hazardous and there are therefore no phrases or GHS symbols . The Chemwatch MSDS is 2013 As the original label is not on the container I have no way of telling who the real supplier was . Other suppli...
by bigmack
05 May 2016, 18:42
Forum: Safety with Chemicals
Topic: GHS Labeling
Replies: 123
Views: 46664

Re: GHS Labeling

Jennag , I feel your frustration and it is why I am leaving Dropper bottles to last .....kind of hoping there will be a last minute moment of reality where WHS and the DoE actually get their S..t together and realize that we can't realistically produce a 25ml dropper bottle that is WHS compliant ......
by bigmack
05 May 2016, 18:19
Forum: Chemistry and Labware - General
Topic: Phenolphthalein bubbling
Replies: 5
Views: 3141

Re: Phenolphthalein bubbling

If you mix ethanol and water it goes cloudy looking .......lots of tiny bubbles are generated and float to the top . ( I don't know what they are ...perhaps a learned member can enlighten ) ....it also produces a slight heat ( exothermic reaction perhaps :unsure: ) But it is normally a fairly quick ...
by bigmack
04 May 2016, 18:32
Forum: Safety with Chemicals
Topic: Chem store
Replies: 10
Views: 4877

Re: Chem store

The only labeling on our 15 year old Chem store is the words "Chem store ".... :boring :whistling2: : ...We have no GHS labelling on our Chem store room door.... However I see no issues with having them either and will add them if it's needed. Incidentally , I'm still confused about this ....
by bigmack
03 May 2016, 16:00
Forum: Miscellaneous
Topic: Was there an official memo about GHS ?
Replies: 20
Views: 13516

Re: Was there an official memo about GHS ?

linotas wrote: Total compliance is mandatory by 1st Jan 2017.
Well I would have a reasonable guess that by the 1st Jan 2017 95% of schools will be non compliant simply because nobody told them about it .

What happens if a school is non compliant ? are all science pracs banned until the problem is rectified ?
by bigmack
03 May 2016, 13:13
Forum: Miscellaneous
Topic: Was there an official memo about GHS ?
Replies: 20
Views: 13516

Re: Was there an official memo about GHS ?

linotas....sorry for the flippant sounding question ....it was my bad attempt at sarcasm towards the DoE's apparent failure to notify us of what is a serious undertaking . Obviously if its Law we must do our best to comply .....and certainly its a monumental task , I would make a conservative guesti...
by bigmack
02 May 2016, 15:35
Forum: Miscellaneous
Topic: Was there an official memo about GHS ?
Replies: 20
Views: 13516

Re: Was there an official memo about GHS ?

Hmmm just got off the blower to a labbie I know at another DEC school ....seems first he's heard about it too . Thank you for all your reply's so far . I wonder how can it be that this has slipped by in nearly 4 years since the 2011 WHS act that nobody in the education Dept has officially alerted us...
by bigmack
02 May 2016, 12:20
Forum: Miscellaneous
Topic: Was there an official memo about GHS ?
Replies: 20
Views: 13516

Was there an official memo about GHS ?

I ask this because my off sider says he has never seen an official directive from the DEC about GHS .( And he is quite meticulous with his info) I only became aware of it myself after seeing a demo label software offer from Omega ....again not official from DEC. I then became curious and found it is...
by bigmack
05 Apr 2016, 11:34
Forum: Miscellaneous
Topic: What are you doing this Holidays
Replies: 51
Views: 24987

Re: What are you doing this Holidays

Hope you have a great trip Rae .....after my last trip to Vietnam may I strongly suggest you pack some Imodium :cry2:

Me , I'm off to NZ to visit the folks .
by bigmack
05 Apr 2016, 11:01
Forum: Safety with Chemicals
Topic: Minimum Requirements for a GHS Label ?
Replies: 5
Views: 3190

Re: Minimum Requirements for a GHS Label ?

Thanks merilyn1....just checked it out. http://www.safeworkaustralia.gov.au/sites/swa/about/publications/pages/labelling-hazardous-chemicals-cop then down load the pdf 2.1 What information must be included on a label? A hazardous chemical is correctly labelled if the chemical is packed in a containe...
by bigmack
04 Apr 2016, 14:50
Forum: Safety with Chemicals
Topic: Minimum Requirements for a GHS Label ?
Replies: 5
Views: 3190

Minimum Requirements for a GHS Label ?

On Chemwatch label templates there are a few but not many GHS templates . The information on all of these varies conciderably . Not being happy with any of the labels , I have been playing around with D-gen label maker on Chemwatch and it is very good :whistling2: But I wonder what is the bare minim...
by bigmack
04 Apr 2016, 12:15
Forum: Sourcing Materials & Eq Repairs
Topic: DATA LOGGERS
Replies: 6
Views: 3615

Re: DATA LOGGERS

We've got the Data harvest Easysense Vision type We had one for a few years and just got another and waiting on a new set of sensors . teachers seem to like them . They are reasonably intuitive to use but a little quirky . Teachers love that it plugs into smart board via VGA .....plug a wireless mou...
by bigmack
31 Mar 2016, 05:04
Forum: Biology, Physics...
Topic: minigrid slide
Replies: 5
Views: 4924

Re: minigrid slide

Thanks Rea ...knew I was overcomplicating it .
by bigmack
29 Mar 2016, 16:17
Forum: Biology, Physics...
Topic: minigrid slide
Replies: 5
Views: 4924

Re: minigrid slide

Cool .One of our teaches asked if I could make some .I looked into printing a 1mm grid but was put off when I saw the tiny 0.1mm grid in the middle of a standard mini grid slide. Does it really matter ? Does anyone have a template or link to one ? I spent concideable time searching for one and gave ...