Should laboratory aprons be worn during all lab activities?

Laboratory aprons should be worn during all lab activities. It's okay to pick up broken glass with your bare hands as long as the glass is placed in the trash. Never leave a lit burner unattended.

Consequently, why are lab aprons important?

There are many reasons why it is essential to wear a lab apron at all times. Working in a lab poses the risk of exposure to harmful chemicals. When a lab apron is a work, it protects the person from the substances, especially in the event a spill should happen.

Furthermore, are all chemicals in the lab considered to be dangerous? All chemicals in the lab are to be considered dangerous. 24. Return all unused chemicals to their original containers. Laboratory work can be started immediately upon entering the laboratory even if the instructor is not yet present.

Similarly, you may ask, what should you do with all unused chemicals after each lab?

Terms in this set (25)

Hot glass looks the same as cold glass.
All chemicals in the lab are to be considered.
Return all unused chemicals to their original.
Work areas should be kept clean and tidy.
Pipets are used to measure and dispense small.
Laboratory work can be started immediately.

Does hot glass look the same as cold?

Up to a point, yes. Below about 1200 degrees farenheit, glass doesn't change the way it looks. This is plenty of heat to be able to burn you, which is why “cold glass looks exactly like hot glass" is a rule to keep in mind in the lab or kitchen.

38 Related Question Answers Found

Does lab coat protect you?

In laboratory work

When used in the laboratory, lab coats protect against accidental spills, e.g., acids. In this case they usually have long sleeves and are made of an absorbent material, such as cotton, so that the user can be protected from the chemical.

How does wearing a lab apron help you stay safe in a laboratory?

They are not just worn to keep your clothes clean, they are to protect against chemical splashes and spillages and, in some cases heat and fire. If something spills on you it is much easier to remove a lab coat quickly to prevent the substance coming into contact with your skin, than it is to remove your clothing.

What is the importance of using aprons in laboratory in view of safety?

To keep from damaging or staining their clothing. Just as many cooks wear an apron to protect their clothes, scientists who are working with chemicals that are dangerous or that stain usually wear something to protect their clothes. Often, a lab coat isn't enough. After all, it is just made of cloth.

Why is it necessary to wear your lab gown always?

PREVENTS CROSS CONTAMINATION – A lab coat prevents cross contamination – keeping your lab coat on in the lab will retain contamination within your laboratory and will reduce or prevent cross contamination into other areas.

Why do we wear gloves in the lab?

It is important to wear gloves when working with hazardous chemicals and other materials because they protect our hands from infection and contamination. Protective gloves should be selected on the basis of the hazards involved. Nitrile gloves protect against most chemicals and infectious agents.

Why is it important to wear an apron?

The apron prevents your clothes from coming in contact with the food, hence any germs, dust, hair etc, stay within the apron and off your plate. Well by merely wearing an apron, it tucks in all the loose clothing and our clothes are firmly secured to our body.

How do you use a fume hood?

Ensure that windows and doors near the fume-hoods are CLOSED. Always keep work at least 15cm in from the opening of the fume hood. Use the sash as a safety shield when boiling materials or conducting an experiment with reactive chemicals. Always keep sash as low as possible.

What should you not wear in a science lab?

Avoid wearing the following items to lab:

Contact lenses.
Tank tops or cropped shirts.
Mesh shirts.
Shorts or skirts that do not cover your knees when you are sitting.
Sandles, flip-flops, or other shoes that do not completely cover your feet. Sandles with socks is not considered appropriate attire.

Where should you put unused chemicals?

Do not put chemicals back into reagent bottles; returning an unused chemical to a container risks contamination. Extra material must be placed in the appropriate chemical waste container. Whenever possible, share excess material with a neighbor, but do not return it to the original container.

What is the proper procedure for cleaning glassware?

The most common procedure that will be effective against most dirty glassware will be to first rinse with an organic solvent, and then second, to wash and scrub with warm, soapy water. Then the glassware needs to be rinsed with tap water, deionized water, and finally with acetone before placing on a rack to air dry.

What three things should you do if you cut yourself in the lab?

Use a broom and dustpan, not your fingers!

Never use glassware that is already chipped or cracked. Give it to your lab instructor or dispose of it as directed in a broken glass disposal container. If you cut yourself, immediately inform your lab instructor. Mercury spills are serious.

What should be done if a chemical gets in the eye?

To treat a chemical eye burn: Flush the eyes out with cool water for at least 15 minutes. As you rinse, use your fingers to hold your eye open as wide as possible and roll your eye to ensure the greatest coverage. Remove contact lenses, if applicable, if they do not come out during flushing.

What is the most important thing to do before starting a lab?

5 Tips to Know Before Your First Lab Class

Make sure you understand the experiment before starting an experiment.
Wear the right kind of clothing and gear.
Be aware of safety equipment and where it's located.
Fill out your lab form as you conduct your experiment.
Complete your lab report as soon as possible after the lab.

Why are unused chemicals never returned to their original containers?

Do not return chemicals to the original containers – To avoid contamination of chemicals, dispose of used chemicals according to your instructor's instructions. NEVER return unused chemical to reagent bottles. Some liquids and water-soluble compounds may be washed down the sink with plenty of water, if told to do so.

How can we protect ourselves in the laboratory?

Dress for work in the laboratory. Wear clothing and shoes that cover exposed skin and protect you from potential splashes. Tie back long hair, jewelry, or anything that may catch in equipment. Never eat food, drink beverages, chew gum, apply cosmetics (including lip balm), or handle contact lenses in the laboratory.

Why are bottles of chemicals kept tightly closed?

To keep out of chemicals and fire. The chemicals could spill on them causing a reaction. Why are bottles of chemicals kept tightly closed except when a quantity of chemical is being removed? To not have it spill and also to not have other stuff outside come in to the bottle.

Should you shake down a lab thermometer?

The thermometer contains a liquid, either mercury or dyed oil. Laboratory thermometers are never shaken down before using. While reading the temperature of a liquid, at least 5 cm of the thermometer should be immersed for an accurate reading.