Lab Safety 2
Summary
TLDRThis video script emphasizes lab safety, focusing on the dangers of cleaning up after experiments. It advises caution when washing glassware to prevent chemical splashes and stresses the importance of inspecting equipment for damage. Broken glassware should be disposed of in designated containers to protect against injury and contamination. The script also warns against eating, drinking, or playing in the lab, and highlights the proper disposal of waste, including metal and chemical waste, to ensure a safe and enjoyable lab experience.
Takeaways
- 🧪 The cleanup phase of an experiment is a critical time for safety due to potential distraction and the risk of chemical exposure.
- 💡 Be cautious when washing glassware as the chemicals inside can splash out, possibly onto your skin or face.
- 🚰 Always start the water flow before placing glassware under the tap to control the water stream and prevent splashing.
- 🧼 If you find glassware not in its designated storage place, treat it as dirty and either wash it or set it aside for cleaning.
- 🚨 In case of a spill, clean up small ones with paper towels and gloves, and inform the instructor for larger spills.
- 🔍 Inspect glassware for cracks or chips before use, as damaged items can break and cause chemical spills or injury.
- 🗑️ Dispose of broken glass in designated containers to prevent injury to those handling waste and to avoid contamination.
- 🚮 Regular trash should be placed in appropriate bins, and never dispose of metal in regular trash bins due to fire risks.
- 🍽️ Eating and drinking are prohibited in the lab to prevent contamination and ensure a safe working environment.
- 🏺 Do not use ice from lab coolers for personal consumption as it's meant for lab use and not for food or drink.
Q & A
Why is the cleanup period in a lab considered dangerous?
-The cleanup period is considered dangerous because it's a time when one's mind might wander, leading to rushing and increased risk of accidents. Additionally, washing lab equipment can be messy, and there's a risk of splashing chemicals on one's skin or face.
What precaution should be taken before washing glassware under running water?
-Before washing glassware under running water, one should turn on the water first and adjust the stream to the desired degree before placing the glassware under it to prevent sudden splashing.
What should you do if you find glassware not in its normal storage position in the lab?
-If glassware is found not in its normal storage position, it should be assumed to be dirty. One should either wash it or put it aside but not use it without proper cleaning.
How should small spills in the lab be handled?
-Small spills should be cleaned up by the individual using paper towels, and gloves should be worn while doing so. For larger spills, the instructor should be called for assistance.
Why is it important to inspect glassware for cracks or chips before use?
-Inspecting glassware for cracks or chips is important because damaged glassware can break during heating, leading to chemical spills and potential injuries from splattering.
What should be done with broken glassware in a lab?
-Broken glassware should not be thrown in regular trash to avoid injury and contamination. Instead, it should be disposed of in specially labeled glass containers.
Why should metal not be placed in regular trash bins in a lab?
-Metal should not be placed in regular trash bins because damp metal can potentially catch fire. There are special, often more expensive, trash bins designed to extinguish fires if they occur.
What is the policy on eating and drinking in the lab as mentioned in the script?
-Eating and drinking are not allowed in the lab. This includes not consuming any ice found in lab coolers or bringing food or drinks out during the lab session.
How should one avoid contact with chemicals in the lab?
-To avoid contact with chemicals, one should not take big sniffs, taste them, or rub them with fingers. It's crucial to avoid any form of contact or ingestion of chemicals at all times.
What should you do if you break glassware on the floor?
-If glassware breaks on the floor, it should be cleaned up using a brush and a broom and pan, and disposed of in the glass waste container, not with bare hands.
Outlines
🧪 Lab Clean-Up Safety
This paragraph emphasizes the importance of safety during the clean-up phase of a lab experiment. It points out that this period can be particularly hazardous due to distractions and the messiness of washing equipment. The speaker advises caution when washing beakers and other glassware, as chemicals can splash onto the skin. A recommendation is made to turn on the water first before placing glassware under the stream to control the flow and minimize splashing. The audience is reminded to treat any misplaced glassware as potentially contaminated and to handle it accordingly. The speaker also covers the proper procedures for dealing with spills, inspecting glassware for damage, and disposing of broken glass safely. The importance of not using damaged glassware and the correct disposal methods to prevent injury and contamination are highlighted.
Mindmap
Keywords
💡Safety
💡Chemicals
💡Cleanup
💡Glassware
💡Spills
💡Inspection
💡Disposal
💡Contamination
💡Waste Management
💡Proper Storage
💡No Eating or Drinking
Highlights
The period after experiments is the most dangerous for accidental chemical contact.
Mind wandering and rushing can lead to accidents during cleanup.
Washing glassware can be messy and cause chemical splashes.
Turn on water before placing glassware under the stream to control splashing.
Assume any misplaced glassware in the lab is dirty and handle accordingly.
Inspect glassware for cracks or chips before use to prevent breakage and chemical spills.
Dispose of damaged glassware in special containers to prevent injury and contamination.
Never use hands to pick up broken glass; use a brush and pan for disposal.
Do not put metal in regular trash bins to prevent fire hazards.
Metal waste should be disposed of in designated solid waste bins.
Lab should be an enjoyable experience focused on science, not play.
Lab ice is not for consumption; eating and drinking are prohibited in the lab.
Avoid contact with chemicals at all times; do not sniff, taste, or touch them.
Handle small spills with paper towels and gloves; larger spills require instructor assistance.
Always wear gloves when cleaning up spills to protect your hands.
Never use lab materials, including ice, for personal consumption.
Transcripts
the period of time when you're done with
your experiments and you're cleaning up
and ready to go
is among the most dangerous and the most
apt to
lead to you getting um contact with
with chemicals that you don't want to be
in contact with and so it's that's for
two reasons
one is your mind starts wandering onto
other things you might rush a bit
but also just washing things is a bit
messy
remember that your remember that your
beakers and the like that you're using
have chemicals in them and when you go
to put water
in them sometimes they'll just splash
and that can splash
on your hands or on uh or splash up in
your face and on your skin so be really
careful
about how you do that and one thing is
before you put the
glassware underneath the stream of water
turn the stream water on first do that
slowly
and get the water going to the degree
you want and then go ahead
and use uh the sink to the water running
from the sink to clean your glassware
[Applause]
if you find glassware in the lab not in
its normal storage positions
assume that it is dirty go either go
ahead and wash it or put it aside but do
not use it
and assume that you shouldn't be
touching any chemical surfaces with it
[Applause]
let's talk about spills sometimes stuff
spills
if you have a relatively small something
like that
go ahead and clean it up yourself get a
paper towel and clean it up
ask your instructor should be wearing
gloves when you do so if you have a
larger spill call your instructor
and they will help you clean it up
before you start working you should
inspect your glassware to make sure it
doesn't have any cracks or chips
so this is a beaker and it has a crack
in it and if you were to put this on a
hot plate
and heated it up it could very well
likely would break and fall apart and
spill chemicals
on the hot plate and maybe splatter on
you so
safety is more important than the cost
of glassware so whenever we have
anything wrong with our glassware we
dispose of it and we don't want to take
a
cracked or chipped piece of glass and
throw it in the regular trash because
then people who are handling the trash
will be in danger of cutting themselves
and
of getting cutting themselves bad enough
but also getting contaminated with
whatever is on the on the broken glass
so what we do is we have special
containers for our broken glass
and they are cleverly labeled glass and
so all broken glass does not go on the
regular waste containers
they go in these special glass
containers so put your glass in there
when you're uh when you when you have
anything that needs to be thrown out
if you break a piece of glassware and it
breaks into pieces on the floor
clean it up but be sure to use a brush
and
a broom and pan to do that to distort to
to dispose of it in the glass waste
don't use your hands don't touch the
broken glass with your fingers
use the pan and the brush instead
regular trash goes in these trash bins
and one important rule is to never put
any metal
in the trash bins and the reason is that
metal particularly when it gets damp
can actually catch on fire and so we've
got these metal uh
pretty expensive fancy trash bins to
help
extinguish fire if it happens but we
just don't want to go there so
no metal in the trash bins if you do
have metal that needs to be thrown out
your instructor will show you where the
solid waste bin is
being in lab can really be an enjoyable
experience it can be fun
and so what i'm going to do is i'm going
to take this paper and try to make a
basket
so was that good no it was not good
inside lab we do not play around we do
enjoy ourselves because we're doing
science but no playing around
sometimes you'll see these uh red and
white
little coolers they're coleman coolers
like as if you're going camping but
you're not
you've been doing a lab and in here
you'll find ice
and so that's regularized it's made in
an ice machine we have down the hall
here
but should you use this ice in a nice
cold frosty drink
the answer my friends is no because that
would constitute eating in lab and you
should never
eat or drink anything in labs so when
you come to lab
you should if you have a water bottle or
something like that put it inside your
pack and don't have it out at all during
the lab
and of course no eating in in lab and no
certainly no eating anything
um that you find in lab and so when you
have chemicals you don't take big sniffs
of them you don't taste them
you don't rub them with your fingers you
basically avoid contact
at all times and ingesting anything
including ice
is not allowed
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