- 3.3 Borosilicate glass
- Griffin low form
- 5 sizes - 50, 100, 250, 500, 1000ml
- Extra large marking spot
- ASTM Specification E960, Type I requirements
Karter Scientific, 3.3 Boro, Griffin Low Form, Glass Beaker Set - 5 Sizes - 50ml, 100ml, 250ml, 500ml, 1000ml
|Brand Name||Karter Scientific|
|Material||3.3 Borosilicate Glass|
|Specification Met||ASTM , ASTM E960|
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A set of five of the most popular low form glass beaker from Karter Scientific. Contains 1 each 50, 100, 250, 500, and 1000ml Griffin low form beaker. Griffin Low Form Beakers are made of 3.3 borosilicate glass. Single Capacity Scale, Heavy-Duty, beaded rim and a spout designed to have excellent pouring characteristics., white marking spot, and uniform wall thickness throughout. 3.3 borosilicate is the highest level of inert glass available. Designed from ASTM Specification E960, Type I requirements.
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I needed something I could boil water in on a hot plate for hobbies and these were cheap and the right size for me. I wasn't sure about using them directly on a hot plate (cheapo home use, not fancy lab one) but saw the review for someone who boiled water in it and stuck it in the freezer and figured I was good to go.
They all came in individual boxes in one larger box and none were damaged. At first glance, they looked to be thinner than I was expecting which concerned me. Coincidentally my hot plate arrived in the same Amazon box, so I decided to fire it up.
I filled the 1L beaker to the "approximate" 1L line, set it on the hot plate and cranked it up to 11. 15 minutes later my water was boiling. There is headroom beyond the 1L line in the 1L beaker (as there is in all of them) but the water still can boil over the sides, so watch out for that.
The only thing that concerned me was that the beaker was making some funny noises as it heated up. I decided watching from the living room would be best on the first run. Sort of a popping noise which also happened when it was cooling. The beaker was fine though and after cycling to make the water hotter, cooler, etc as needed, I felt re-assured it was fine for me. I'm attributing this to the fact that they are new, smooth beakers and the water may be getting super heated.
These will be my go-to containers for projects and will be looking at Karter Scientific products first in the future.
I've run them through the dishwasher several times with no apparent issues, so they are sturdy enough for my needs. As cheap as they were, I don't expect them to last forever in a hectic kitchen, but having many of them is more important than having them be perfect. So far they are both.
As a bonus, there are volume measurements on the side, but as I said before, I do everything in weight now. In either case, if you use milliliters when you cook you will like these beakers.
If you have any questions, feel free to leave them in the comments. Cheers!
I use these with my magnetic stirrer and they have flat bottoms which keep the magnetic stirrer in close contact with the motor.
They all nest inside each other to save on shelf space when not in use.
No sharp edges, nice and thick glass, no worries about breaking while washing.
I would definitely recommend these beakers without reservation.
If you want something a little more lasting pay twice the amount and get some Pyrex. The Pyrex labels will not fade.