Safe Handling of Chemicals
Summary
TLDRThis educational video script focuses on chemical safety and the proper use of personal protective equipment (PPE). It explains the importance of recognizing warning signs on chemical containers and the types of PPE available for protection. The script also covers chemical concentration, emphasizing the need to follow instructions and material safety data sheets for correct dilution. It introduces the concept of PPM and the use of test tape for measuring chemical concentration. Additionally, the script discusses chemical dispensing, highlighting the use of automatic dispensers and the correct procedure for filling spray bottles. Lastly, it stresses the importance of maintaining chemical concentration and hygiene standards in cleaning practices.
Takeaways
- π¨ Recognize chemical warning signs to protect yourself, such as corrosive, toxic, highly flammable, irritant, harmful, and oxidizing signs.
- π‘ Use personal protective equipment (PPE) like goggles, masks, respirators, gloves, and aprons to shield from chemical hazards.
- β Always follow PPE procedures, and consult your supervisor if unsure about the required PPE.
- π§ͺ Understand chemical concentration by reading instructions or material safety data sheets (MSDS) to avoid over or under dilution.
- π Chemical concentration is measured in PPM (parts per million), and test tapes can be used to ensure the correct concentration.
- π§ When diluting chemicals, always add the chemical to water, not water to the chemical, to prevent accidental contact or inhalation.
- π Use automatic dispensers for chemical concentrates to ensure accurate and safe dispensing.
- π« If a dispenser is leaking or malfunctioning, contact your chemical provider for repair instead of attempting a fix yourself.
- π Follow the correct steps for filling a spray bottle with chemical solution, ensuring even distribution without shaking.
- π Regularly test chemical solutions to maintain high standards of hygiene and cleanliness, especially when using them in buckets or basins.
Q & A
What are the common warning signs found on chemicals?
-Common warning signs include corrosive, toxic, highly flammable, irritant, harmful, and oxidizing signs, each indicating different levels of hazard such as tissue damage, potential for death, fire risk, skin irritation, non-toxic but dangerous substances, and substances that can enhance burning.
Why is it important to wear personal protective equipment (PPE) when handling chemicals?
-PPE is crucial for shielding oneself from the harmful effects of chemicals. It includes items like goggles, masks, respirators, gloves, aprons, and safety shoes, ensuring protection against chemical exposure regardless of the task's duration or scale.
What should one do if unsure about the necessary PPE for a task?
-If uncertain about the required PPE, one should consult with a supervisor to understand the available PPE and ensure proper protection.
How are chemicals typically delivered and what is the process for their use?
-Chemicals are usually delivered in a concentrated form and need to be diluted by mixing with water. The correct amount to be added is specified in instructions or material safety data sheets (MSDS).
What does PPM stand for in the context of chemical concentration?
-PPM stands for 'parts per million,' a measure used to define the concentration of a chemical in a solution.
How can one determine the correct concentration of a chemical solution?
-The correct concentration can be determined using test tapes that change color when submerged in the solution, which can then be compared to a color chart on the test tape container.
What is the golden rule of chemical dispensing?
-The golden rule is to always add the chemical to water, not water to the chemical, to prevent the chemical from forming a firm mass that could cause harm if it comes into contact with skin or eyes or is inhaled.
How should one correctly fill a spray bottle with a chemical solution?
-The correct steps include filling the bottle with water to the indicated level, fitting it into the dispenser without the lid, dispensing the chemical by pushing the button until the light turns green, and then adding the lid and turning the bottle upside down to distribute the chemical evenly.
What is the significance of the hair net in PPE, and what should be done if it's not worn properly?
-The hair net is part of PPE to maintain hygiene by covering the hair and ears. If it's not worn properly, such as with ears sticking out, it's unhygienic and should be adjusted to ensure full coverage.
How often should chemical solutions in buckets or basins be changed to maintain cleanliness standards?
-Chemical solutions in buckets or basins should be changed regularly throughout the day to avoid using overly diluted chemicals, which would be ineffective and waste time and energy.
Outlines
π§ͺ Chemical Safety and Personal Protective Equipment (PPE)
This paragraph emphasizes the importance of chemical safety and the use of personal protective equipment (PPE). It introduces various warning signs found on chemicals, such as corrosive, toxic, highly flammable, irritant, harmful, and oxidizing. The paragraph explains the significance of each sign and how they indicate the potential hazards of chemicals. It then transitions into discussing the types of PPE available, including goggles, masks, respirators, gloves, aprons, hair nets, and safety shoes, and stresses the necessity of wearing appropriate PPE to protect oneself from chemical exposure. The importance of consulting supervisors for PPE procedures is also highlighted.
π¬ Understanding Chemical Concentration and Dispensing
The second paragraph delves into the concept of chemical concentration and the correct method of diluting chemicals. It explains that chemicals are often delivered in concentrated forms and need to be mixed with water, with the exact amount depending on the chemical and its intended use. The paragraph introduces the measurement unit PPM (parts per million) and suggests using test tapes for determining the correct concentration. It also touches on the use of automatic dispensers with sachets for common chemical concentrates, ensuring safe and accurate dispensing. The paragraph concludes with a golden rule of chemical dispensing: always add the chemical to water, not the other way around, to prevent the chemical from becoming too concentrated and posing a risk to health.
Mindmap
Keywords
π‘Chemical Safety
π‘Personal Protective Equipment (PPE)
π‘Chemical Concentration
π‘Material Safety Data Sheets (MSDS)
π‘Corrosive
π‘Toxic
π‘Flammable
π‘Irritant
π‘Harmful
π‘Oxidizing
π‘Dispensing
Highlights
Chemical safety and personal protective equipment (PPE) are crucial for protection against harmful substances.
Understanding warning signs on chemicals is essential for safety.
Corrosive chemicals can attack and destroy living tissue like skin and eyes.
Toxic chemicals pose a risk of death if ingested, inhaled, or absorbed through the skin.
Highly flammable chemicals can easily catch fire.
Irritant chemicals can cause blisters or skin redness but are not corrosive.
Harmful chemicals are dangerous but not necessarily toxic.
Oxidizing chemicals can make other substances burn more fiercely by adding oxygen.
Personal protective equipment (PPE) includes goggles, masks, gloves, and aprons to shield from chemical harm.
PPE must be worn regardless of the job's size or duration.
Chemical concentration is vital and should be checked using instructions or material safety data sheets (MSDS).
Chemicals are measured in PPM (parts per million) for correct dilution.
Test tape is a simple method to check chemical concentration by color comparison.
Automatic dispensers with sachets ensure correct chemical dilution and minimize contact risk.
If a dispenser is leaking or malfunctioning, contact the chemical provider for repair.
The golden rule of chemical dispensing is to always add chemical to water, not water to chemical.
Follow a five-step process for safely filling a spray bottle with chemical solution.
For bucket solutions, measure water capacity and add chemicals accordingly, then test for correct PPM.
Regularly change chemical solutions in buckets or basins to maintain effectiveness.
Test solutions hourly to uphold hygiene and cleanliness standards.
Prepare a cleaning caddy with frequently used chemicals, sponges, and scrubbers for any cleaning emergency.
Always ensure that hair is fully covered by hair nets for hygiene purposes.
Transcripts
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[Music]
safety
chemicals are harsh and harmful
substances
preventative measures need to be taken
to protect you
in this lesson we will be focusing on
chemical safety and personal protective
equipment
chemical concentration and chemical
dispensing
let's get started with chemical safety
and PPE
the first thing to be able to identify
in terms of chemical safety are warning
signs
even if you are unsure of the chemical
you will be able to protect yourself if
you can read the warning signs
here are some common warning signs found
on chemicals
the first one we have here is the
corrosive sign
this indicates that this chemical will
attack and Destroy living tissue such as
Skin and eyes
then we have the toxic sign
this means that this chemical can cause
death if swallowed breathed in or
absorbed by the skin
this is a sign that means highly
flammable
saying that a specific chemical can
catch on fire easily
then we have the irritant and harmful
signs
the irritant is not corrosive but will
make a blister or turn the skin red
the harmful sign looks similar to the
irritant sign but means that it is not
toxic but still dangerous
and lastly is the oxidizing sign
this sign means that this chemical adds
oxygen to other substances that will
make it burn more fiercely
these all sound rather terrifying
luckily we have PPE or personal
protective equipment that is easily
available and designed to Shield you
from harm
PPE comes in many forms such as goggles
disposable surgical masks
respirators
disposable gloves heat resistant gloves
disposable aprons
heat resistant aprons
hair nets
and steel-capped non-slip shoes
if any PPE is necessary it must be worn
no matter how small or quick the job
if you are unsure of PPE procedure speak
to your supervisor about the PPE
available to you and ensure that you are
always protected
now that we have chemical safety and PPE
covered let's discuss chemical
concentration
[Music]
most chemicals are delivered in a
concentrated form and need to be diluted
meaning that they need to be mixed with
water
the amount of chemical added will vary
so always read the instructions or
material safety data sheets MSDS
to make sure you are adding the right
amount of chemical to water and not over
or under diluting it
chemicals are measured in PPM or parts
per million and depending on the
chemical should be at the concentration
of 200 PPM
this is very technical and the easiest
way to understand chemical concentration
is by using test tape
depending on the chemical there are
different test types that when submerged
in the water and chemical solution will
change color
the color can then be compared to colors
on the test tape container showing the
correct PPM
it is important to check the
concentration so that you are sure that
the chemicals are doing their jobs
properly and the solution is not
dangerously strong or overly weak
there are clever methods that altogether
remove the worry of incorrect dilution
this brings us to our next Point
chemical dispensing
in your work area you will find
automatic dispensers fitted with sachets
of common chemical concentrates such as
all-purpose cleaner all-purpose
sanitizer and heavy duty degreaser
depending on the chemical there are
different amounts that must be added but
they will be added by pumps measured by
the dispenser so that you are safe from
any chemical contact
if the dispenser is leaking or
malfunctioning don't try to fix it
yourself
contact diversity your chemical provider
to repair the dispenser immediately
there is one Golden Rule of chemical
dispensing
always add the chemical to water not
water to chemical
this is because the chemical will firm
too much if it is added first and could
come into contact with your skin or eyes
or it could be inhaled
follow these steps to safely and
correctly fill a spray bottle with
chemical solution
Step 1 fill the bottle with clean cold
water to the indicated level
step 2.
fits the bottle without the lid into the
dispenser
step 3 using both hands slowly and
evenly push the button to dispense the
chemical
once the light turns green push the
button again
check the instructions for the specific
chemical to determine how many pumps of
chemical the bottle needs
step four
once all the chemical has poured into
the bottle remove the bottle and screw
the lid back on
holding the neck gently turn the bottle
upside down so that the chemical is
evenly distributed without being shaken
step 5 the chemical is ready to be
stored in the caddy and used straight
away
because of the automated dispensing it
doesn't need to be tested for PPM
we have just learned how to mix
chemicals in a spray bottle
did you notice anything wrong with these
steps
take a moment to think about it
if you said that the steward's ears were
sticking out of the hair net well done
you are spot on
this is unhygienic and ears must always
be kept covered by your hair net
what do you do if you need a bucket of
solution
well it all depends on the capacity or
amount of water that the bucket can hold
buckets should have a level indicating a
measured cut off point for water
then chemicals can be added by the
dispenser in a larger scoop
mixed together and then sample with the
test paper to ensure you have the
correct PPM
because you are mixing these by hand
make sure your PPE is just right
when using the chemicals in a bucket or
Basin throughout the day change them
regularly to avoid using over diluted
chemicals
this is because you will just be
cleaning with dirty watered-down muck
and wasting all your time and energy
test the solutions every hour to
maintain high standards of hygiene and
cleanliness
for everyday cleaning pack your caddy
with spray bottles of the chemicals you
use most frequently as well as clean
sponges and scrubbers
the caddy should be kept on a trolley
with clean water and paper towel so that
you are prepared for any cleaning
emergency
well done on learning all about the
chemicals found in your department and
how to use them safely
[Music]
foreign
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