Most commonly it's used to score small diameter glass tubing before breaking it so that it will break cleanly instead of shattering. Don't attempt to saw through the tubing with the file. If it won't break cleanly with a light score, you'll need to use a different technique such as scribing followed by thermal shock.
laboratory apparatus
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totally i haven't seen a laboratory apparatus sign doctor lewis walter
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bunsen burner
3 apparatus use for measuring liquids
the importance in the common laboratory apparatus in science is that in science we need to experiment thing we use this tools or laboratory apparatus to understand cchemicals do and this common laboratory apparatus is a part in science too
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what are the laboratory apparatus that are made up of ceramics
what are some picture laboratory apparatus and their function
how did you casify the given laboratory equipment and apparatus