- When should glassware be washed?
- What is the proper way of handling unused chemicals?
- What safety precautions should you use when working with a heat source?
- What are signs of dirty glassware?
- How do you clean dirty glassware?
- Why should we never use broken or chipped tools in lab during experiments?
- Can glass shards kill you?
- Where should a broken beaker be disposed of?
- What happens if you eat glass shards?
- How do you get glass dust out of your skin?
- What do you do when your lab coat catches on fire?
- What should you do if you break any of the glassware?
- Where should you dispose of broken glass quizlet?
- What can happen if you step on glass?
- How clean does a piece of glassware have to be before you can place it on the dirty glass cart?
- How do you get glass shards out of skin?
- Can you heat liquids in a closed container?
- Why should you never use cracked glassware?
- How should broken glass be disposed of in a lab?
- How can you tell if glasses are hot?
When should glassware be washed?
Wash with hot soapy water, rinse thoroughly with tap water, then rinse 3-4 times with deionized water.
Be sure the final rinses sheet off of the glass.
Burets need to be thoroughly clean to be used for quantitative lab work.
In some cases, you may need to soak the glassware overnight in soapy water..
What is the proper way of handling 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 safety precautions should you use when working with a heat source?
1) Turn off heat sources when they are not in use. 2) Point test tubes away from yourself and others when heating substances in them. 3) Use the proper procedures when lighting a Bunsen burner. 4) To avoid burns, do not handle heated glassware or materials directly.
What are signs of dirty glassware?
Common signs of dirty glassware include bubbles adhering to the inside of a glass (in the liquid portion of the beer), poor foam formation or head retention, and a lack of lacing on the inside of the glass as the beer is consumed.
How do you clean dirty glassware?
The best way to clean your glass is to wash by hand, always with lukewarm water, mild dishwashing soap (liquid), and dry with a microfiber towel. Avoid cleaning surfaces with hydrochloric acid as an ingredient.
Why should we never use broken or chipped tools in lab during experiments?
Never use broken or chipped glassware. … Dispose of the glassware in the proper container. Glassware that is chipped, cracked or broken can cause cuts. Material placed in broken or chipped glassware may leak.
Can glass shards kill you?
He writes that “very fine glass is unlikely to cause any lethal damage to the Gastro Intestinal tract … Even with coarser glass, the bleeding would probably not be massive or life-threatening, but slow and (would) lead to anaemia and fatigue.”
Where should a broken beaker be disposed of?
Broken glass and pipette tips that are either clean or contaminated with non-hazardous materials*, and do not contain liquids can be disposed of in the regular garbage.
What happens if you eat glass shards?
What is a Swallowed Object? Young children and, sometimes, older children and adults may swallow toys, coins, safety pins, buttons, bones, wood, glass, magnets, batteries or other foreign objects. These objects often pass all the way through the digestive tract in 24 to 48 hours and cause no harm.
How do you get glass dust out of your skin?
How do you remove fiberglass fibers from your skin?Wash the area with running water and mild soap. To help remove fibers, use a washcloth.If fibers can be seen protruding from the skin, they can be removed by carefully putting tape on the area and then gently removing the tape.
What do you do when your lab coat catches on fire?
Extinguish burning clothing by using the drop-and-roll technique or by dousing with cold water or using the emergency shower if it is immediately available. If your clothing catches fire, do not run or take other action that will fan the flames. Immediately drop down and roll on the floor to extinguish the flames.
What should you do if you break any of the glassware?
Broken Lab Glassware InjuriesAllow the wound to bleed, but do not massage it to remove any remaining broken glass.Wash the wound with warm water and soap.Apply first aid and seek medical attention.Follow your facility’s safety plan if the injury is severe or if you were exposed to infectious materials.More items…•
Where should you dispose of broken glass quizlet?
Only discard broken glass in the broken glass box. Either in biohazard, sharps, broken glass boxes, pathological waste, or liquid waste. You just studied 86 terms!
What can happen if you step on glass?
Can a glass splinter come out by itself? Small, pain-free splinters located near the skin surface can slowly work their way out with normal shedding of the skin. Also, the body might reject the glass splinter as a foreign body by forming a small pus-filled pimple.
How clean does a piece of glassware have to be before you can place it on the dirty glass cart?
To minimize chances for breakage in transport, carts should not be overfilled and large cylinders should not be placed on the top shelf of the cart. Dirty glassware should be rinsed out and soaking in mild detergent or bleach.
How do you get glass shards out of skin?
Use a magnifying glass to help you see better. If the object is under the surface of the skin, sterilize a clean, sharp needle by wiping it with rubbing alcohol. Use the needle to gently break the skin over the object and lift up the tip of the object. Use a tweezers to grab the end of the object and remove it.
Can you heat liquids in a closed container?
If the container is closed, all vapor generated by boiling will stay in the container. If it is at constant volume, the pressure will rise in it. … Heat pipes boil a liquid at one end and condense it at the other. So the system can remain closed because the contents don’t increase: you put in heat, you take out heat.
Why should you never use cracked glassware?
Broken glass also has the potential to be a health hazard if it is contaminated with toxic chemicals, blood, or infectious substances which may enter the body through a cut or puncture.
How should broken glass be disposed of in a lab?
Clean, broken glass may be collected into a dedicated, rigid and impenetrable container or bin that is clearly labelled ‘Clean Broken Glass’1. Items should be placed directly into the bin, not passed hand to hand, wrapped or placed into a garbage bag.
How can you tell if glasses are hot?
Test heat by holding your hand near BUT DO NOT TOUCH the surface! Be sure to protect your hands. Wear GLOVES or use TONGS to manage heated glassware, etc. Be aware and don’t reach across a FLAME, STEAM, or OTHER HEAT or you may be burned.