Procedures, Practice and Communication P1 and M1
Procedure/ Practice Explain how this procedure /practice is done Why is this procedure / practice carried out?
The handling of materials in a laboratory must be done Chemicals are handled safely to prevent incidents from
very carefully and safely. The first thing that needs to be happening in the lab. If chemicals are not handled
considered is PPE, PPE is personal protective equipment. properly and the person who is handling them is not
Before the chemicals can be handled, the person that is wearing PPE, they could burn their skin or injure them self
handling them must be wearing the right PPE to protect another way.
themselves from harmful chemicals if spilt. The next point
is safe transport. You should NEVER move visibly
degrading chemicals, if you see one you must report it to
the lab supervisor. Study carts are used when there is a
Handling of materials need to move multiple, large or heavy containers and
chemicals and before you use them check that the
cartwheels are big enough so when they go over uneven
floors, they will not tip over. Do not transport the
chemicals during busy times such as, lunch time, break
time, and class switches. Freight elevators can be used
when moving hazardous chemicals, this prevents
accidents from happening in public elevators with other
people in them. Lastly, you must never leave chemicals
unattended.
When storing chemicals, you must label them very Chemicals must always be labelled correctly, if they are
carefully and always check that you are labelling the labelled wrong someone may use the wrong chemical
chemicals correctly. Each chemical needs a specific during an experiment and this could cause a bad chemical
storage place and must be returned right after it is used. reaction, poison vapours may be released from the
Ventilated cabinets are used to store volatile toxins and unknown new substance that could harm anyone in the
Store management
odoriferous chemicals. Flammable liquids must be stored laboratory.
in approved flammable liquid storage cabinets, however if
it is a small amount of flammable liquid it can be stored in
an open room. Chemicals must be separated based on
their compatible groups. Corrosive materials must be
, stored in resist and secondary containers, this will protect
cabinets and will stop leaks and spills. Containers must be
sealed very tightly; this will prevent vapours from
evaporating. Strong chemicals must be stored in
designated fridges, the fridges MUST be labelled as
CHEMICAL STORAGE ONLY – NO FOOD. Flammable liquids
must not be stored in the fridge, except if it is designed
specifically and approved for the storage.
Disposal of excess chemicals is very expensive which is Always make sure to double check how much chemical
why you need to consider the actual amount of chemicals you need order to prevent the high cost of disposing
you need and order minimum quantities. The them, it is also a waste of chemicals if they are unused. If
manufactures safety data sheets contain the information you do not read and research before you order the
about the chemicals you are interested in, they will be chemical, you may use the wrong chemical or get an
available on the supplier’s website. Check and read the unexpected reaction which you will not know how to
Ordering procedures hazard code statements and precautionary statements, handle.
they will help you understand possible hazards of the
chemical you are interested in and how to handle it safely.
Check that your storage and handling facilities are
appropriate and sufficient for the chemicals. Use the
chemical categorisation tool to determine the correct
hazard level.
Calibrating a pipette – First leave the distilled water out The purpose of calibration is to reduce bias in an
for 15 minutes, this will improve the temperatures instrument's readings over a range for all continuous
consistency. Measure the distilled water temperature values
using a thermometer. Record, then place a clean and
empty beaker on a balance, this will ensure the pipette is
Calibration of equipment. E.g. pH
clean and ready to be used and unclogged. Make sure you
meters, graduated pipettes
do not put air bubbles in the pipette when filling it up with
the amount that will be calibrated (1ml) with the distilled
water. Record each measurement about 5-10 times and
weigh the distilled water using a balance. The volume
dispensed formula is V = W x Z.
Maintaining equipment. E.g. Bunsen burners have fire hazard risks. Put the Bunsen It is important to maintain Bunsen burners properly, for
Procedure/ Practice Explain how this procedure /practice is done Why is this procedure / practice carried out?
The handling of materials in a laboratory must be done Chemicals are handled safely to prevent incidents from
very carefully and safely. The first thing that needs to be happening in the lab. If chemicals are not handled
considered is PPE, PPE is personal protective equipment. properly and the person who is handling them is not
Before the chemicals can be handled, the person that is wearing PPE, they could burn their skin or injure them self
handling them must be wearing the right PPE to protect another way.
themselves from harmful chemicals if spilt. The next point
is safe transport. You should NEVER move visibly
degrading chemicals, if you see one you must report it to
the lab supervisor. Study carts are used when there is a
Handling of materials need to move multiple, large or heavy containers and
chemicals and before you use them check that the
cartwheels are big enough so when they go over uneven
floors, they will not tip over. Do not transport the
chemicals during busy times such as, lunch time, break
time, and class switches. Freight elevators can be used
when moving hazardous chemicals, this prevents
accidents from happening in public elevators with other
people in them. Lastly, you must never leave chemicals
unattended.
When storing chemicals, you must label them very Chemicals must always be labelled correctly, if they are
carefully and always check that you are labelling the labelled wrong someone may use the wrong chemical
chemicals correctly. Each chemical needs a specific during an experiment and this could cause a bad chemical
storage place and must be returned right after it is used. reaction, poison vapours may be released from the
Ventilated cabinets are used to store volatile toxins and unknown new substance that could harm anyone in the
Store management
odoriferous chemicals. Flammable liquids must be stored laboratory.
in approved flammable liquid storage cabinets, however if
it is a small amount of flammable liquid it can be stored in
an open room. Chemicals must be separated based on
their compatible groups. Corrosive materials must be
, stored in resist and secondary containers, this will protect
cabinets and will stop leaks and spills. Containers must be
sealed very tightly; this will prevent vapours from
evaporating. Strong chemicals must be stored in
designated fridges, the fridges MUST be labelled as
CHEMICAL STORAGE ONLY – NO FOOD. Flammable liquids
must not be stored in the fridge, except if it is designed
specifically and approved for the storage.
Disposal of excess chemicals is very expensive which is Always make sure to double check how much chemical
why you need to consider the actual amount of chemicals you need order to prevent the high cost of disposing
you need and order minimum quantities. The them, it is also a waste of chemicals if they are unused. If
manufactures safety data sheets contain the information you do not read and research before you order the
about the chemicals you are interested in, they will be chemical, you may use the wrong chemical or get an
available on the supplier’s website. Check and read the unexpected reaction which you will not know how to
Ordering procedures hazard code statements and precautionary statements, handle.
they will help you understand possible hazards of the
chemical you are interested in and how to handle it safely.
Check that your storage and handling facilities are
appropriate and sufficient for the chemicals. Use the
chemical categorisation tool to determine the correct
hazard level.
Calibrating a pipette – First leave the distilled water out The purpose of calibration is to reduce bias in an
for 15 minutes, this will improve the temperatures instrument's readings over a range for all continuous
consistency. Measure the distilled water temperature values
using a thermometer. Record, then place a clean and
empty beaker on a balance, this will ensure the pipette is
Calibration of equipment. E.g. pH
clean and ready to be used and unclogged. Make sure you
meters, graduated pipettes
do not put air bubbles in the pipette when filling it up with
the amount that will be calibrated (1ml) with the distilled
water. Record each measurement about 5-10 times and
weigh the distilled water using a balance. The volume
dispensed formula is V = W x Z.
Maintaining equipment. E.g. Bunsen burners have fire hazard risks. Put the Bunsen It is important to maintain Bunsen burners properly, for
