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The most important rule for laboratory safety is "Know the hazards of what you are working with." The next most important rule is "Know how to protect yourself from the hazards of the materials you are working with."
Not to do anything on your own that required two or more people.
checking to see if the gas taps are on or leaking.....
Follow your teacher's intruction and the textbook direction exactly
use oil
Anyone who is wondering the advantage of using a steel rule over a wooden one they would quickly find that the steel rule is much more durable and easy to read. The wooden rule is quite prone to break if accidentally used wrong.
This is a metallic ruler or measuring device, used for measuring the materials or items in centimetres, inches and millimetres.
Be careful for the sharp niddle..
A steel rule is most commonly refered to as an engineers rule.
Heat (extreme?) expands the distances between the demarcation lines.
A safety rule is a rule that is followed to try to avoid an accident.
"National Steel Rule's website has information on Steel Rule. Fine-Tools and Helmold may also have information on Steel Rule. Wikipedia has info on general rulers, too."
Tool steel.
The term rule in this context is synonymous with ruler, a marked strip that can be used to measure length. A flexible steel rule is make of thin, flexible steel.
what is the number 1 rule for halloween safety
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