What do you understand by safety in the laboratory?

What do you understand by safety in the laboratory?

Laboratory safety involves the development of skills and responsibility and must be an integral part of every chemistry curriculum. This means that safety awareness must be integrated into each laboratory course including research with increasingly broader scope at more advanced levels.

Why should you never eat or drink in a lab?

Food ingestion and chemically contaminated drinks are sources of chemical exposure. Thus, chemical exposure takes place upon consuming food or beverages stored with chemicals. Therefore, eating or drinking in the lab is strictly forbidden.

What can go wrong in a science lab?

Ten common lab mistakes!

• Lab mistake #1 – Not dissolving your drugs / reagents properly.
• Lab mistake #2 – Ordering the wrong product.
• Lab mistake #3 – Using the wrong reagent in your experiment.
• Lab mistake #4 – Running your electrophoresis backwards!
• Lab mistake #5 – Using the wrong statistical test for your data.

What should you do if an accident occurs in the lab?

Medical emergency

1. Remain calm.
2. Initiate lifesaving measures if required.
3. Do not move person unless there is danger of further harm.
4. Keep person warm.
5. Call for emergency response.

What are the worst possible things that could go wrong?

Fires, explosions, electrical shocks, bleeding, burns, poisonings, slips and falls, spills, and natural disasters should be considered.

What are 3 sources of error in an experiment?

Errors are normally classified in three categories: systematic errors, random errors, and blunders. Systematic errors are due to identified causes and can, in principle, be eliminated. Errors of this type result in measured values that are consistently too high or consistently too low.

How can you minimize experimental errors?

How to minimize measurement error

1. Use quality equipment. Using quality equipment is paramount to reducing systematic measurement error.
2. Calibrate your equipment properly. Before conducting an experiment, make sure to properly calibrate your measurement instruments to avoid inaccurate results.
3. Properly train lab staff.
4. Controlled environment.
5. Double-check.

Why is it important to understand experimental error?

An awareness of the principles of experimental error is also useful in everyday life: it allows you to make a critical assessment of numerical claims made by politicians, journalists, etc. The principle that any numerical result has an associated error is definitely not restricted to the scientific laboratory.

What is a good experimental error?

Engineers also need to be careful; although some engineering measurements have been made with fantastic accuracy (e.g., the speed of light is 1 m/sec.), for most an error of less than 1 percent is considered good, and for a few one must use advanced experimental design and analysis techniques to get any …

How errors can be minimized?

Calibration of apparatus: By calibrating all the instruments, errors can be minimized and appropriate corrections are applied to the original measurements. Amplification methods: It is used when a very small amount of material is to be measured which is beyond the limit of the apparatus.

How can reliability be improved?

Here are six practical tips to help increase the reliability of your assessment:

1. Use enough questions to assess competence.
2. Have a consistent environment for participants.
3. Ensure participants are familiar with the assessment user interface.
4. If using human raters, train them well.
5. Measure reliability.