Risks prevention regarding the exposure to chemical substances in the chemistry laboratories

1
Risks prevention regarding the exposure to
chemical substances in the chemistry laboratories

• Maria Dorina Lupu Headmaster
• National College Octavian Goga Sibiu

2
National College Octavian Goga
3
HISTORIC

• The schools roots are related to the name of the
  Asociatiunea Transilvaneana pentru Literatura
  Româna si pentru Cultura Poporului Roman
  (ASTRA).
• Asociatiunea Transilvaneana pentru Literatura
  Romana si pentru Cultura Poporului Roman, was
  the first Romanian School for Girls, in
  Transylvania.
• In 1970 the name of the school changed into
  "Octavian Goga Secondary School.
• After December 1989, the name become Theoretical
  Secondary School Octavian Goga.
• 15th September 2003 the name become National
  College "Octavian Goga" Sibiu, in the presence of
  the Minister of Education and Research Alexandru
  Athanasiu and in June 2004 the College become one
  of the 34th European Schools from Romania.

4
INTRODUCTION

• What is a dangerous chemical substances?
• Any substances which present a risk for the
  occupational health and safety of the pupils,
  because of their properties and the usage.
• The efficient communication regarding de
  occupational health and safety at the work place
  is a challenge both for the teachers and pupils.

5

• The success of the prevention depends on
• The correct labeling of the chemical substances
  used in the chemistry laboratory.
• Safety Data Sheets for the chemical substances
  used during the experiments.
• Pupils training.

6

• A chemical agent cant be used before to put at
  the pupils disposal visual and written
  informations regarding the existing risks and
  the needed protection.
• The duties of the chemistry teachers
• The list with the dangerous chemical agents
  frequently used during the experiments, in pilot
  stations
• Own instructions regarding the occupational
  safety and health at the work place, emphasizing
  the existing risks and the protective measures
• Correct labeling of the chemical substances.

7
Labeling
8
Labeling

• It is very important to inform the pupils
  regarding the chemical risks.
• The pupils were trained to be able to interpret
  the written informations about the warnings and
  risks mentioned on the labels
• R Phrases regarding the risks that can occur
  when a chemical substances is used.
• S Phrases regarding the cautiousness.

9
Labeling

• For the pupils who are working with chemical
  substances during the experiments, it is very
  important to know the significations of the
  symbols mentioned on the label
• Very toxic (T)
• Toxic (T)
• Harmful (Xn)
• Corrosive substance (C)
• Irritating substance (Xi)

10
Labeling

• Conclusion - a label is very useful to identify
  both the dangerous chemical substances and the
  associated risks.
• The labels must be written in Romanian language,
  because it is a very important information source
  for the pupils/workers.

11
Safety Data Sheet

• The most efficient instruments used to identify
  the risks related to the dangerous chemical
  substances are the Safety Data Sheets. The
  teachers have to check if the dangerous chemical
  substances used during experiments have the
  Safety Data Sheets drafted by the suppliers.
• The Safety Data Sheets offer much more
  informations than the labels. Also, these Safety
  Data Sheets are used during the pupils training
  regarding the occupational safety and health at
  work places.

12
Safety Data Sheet

• The Safety Data Sheets permit a quickly
  identification of the risks regarding the safety
  and health at the work places (symbols C, T, T,
  F, F, Xn).
• The Safety Data Sheets can be used to identify
  the chemical risks and to establish the
  prevention measures.

13
Toxicological Risks

• In the written instructions regarding the
  occupational safety and health in the chemistry
  laboratories it was emphasized especially how the
  pupils can be toxicologically affected. It is
  known that a chemical substance can affect the
  human body through inhalation, ingestion,
  direct contact with the skin.

14
Countermeasures

• Countermeasures regarding the inhalation of the
  chemical substances
• Collective protection inside of the chemistry
  laboratories there are some ventilation devices
  which capture the harmful vapors.
• Regarding the individual protection it must be
  mentioned that the pupils have the obligation to
  wear white gown and protective gloves if it is
  necessary, in the chemistry laboratories.

15
Countermeasures

• Countermeasures regarding the contact with the
  skin and eyes.
• The sprinkling is often met in the chemical
  substances manipulation during the experiments in
  the chemistry laboratories, so it is necessary to
  be available some rinse devices.

16
Countermeasures

• Countermeasures regarding the accidental
  ingestion of the chemical substances
• Generally, the ingestion of the chemical
  substances occurs accidentally or in case of
  mixing up with some food products .
• For these purposes, during the trainings, it is
  emphasized the necessity of the container
  labeling. Also, it is forbidden to keep food
  products (beverages) in the same room with the
  chemical substances.
• During the development of the experiments, the
  pupils have the duty to use correctly the
  droppers (not using the mouth instead special
  devices).
• To reduce the consequences of the undesired
  event, all the pupils are periodically trained
  how to grant the first aid.

17
(No Transcript)
18
The mainstreaming Safety into education

• For building safety into education it is
  proposed a model structured on the following
  objectives
• The elaboration of the legislation and
  methodology with the participation of the key
  factors
• The orientation of the educational process for
  the conceiving of a preventive behavior
• The usage of flexible and interactive educational
  methods
• The development of a prevention culture
• The implementation of the prevention draft as a
  life philosophy.