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SÉCURITÉ DANS LE LABO DE SCIENCE

SIMDUT. &. SÉCURITÉ DANS LE LABO DE SCIENCE. Connaître et identifier. S ystème d’ I nformation sur les M at ières D angereuses U tilisées au T ravail. Matières causant d'autres effets toxiques. Gaz comprimés. Matières infectieuses. Matières inflammables et combustibles.

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SÉCURITÉ DANS LE LABO DE SCIENCE

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  1. SIMDUT & SÉCURITÉ DANS LE LABO DE SCIENCE

  2. Connaître et identifier Systèmed’Informationsur les MatièresDangereuses Utilisées auTravail

  3. Matières causant d'autres effets toxiques Gaz comprimés Matières infectieuses Matières inflammables et combustibles Matières corrosives Matières oxydantes Matières dangereusement réactives Matières causant des effets toxiques sérieux et immédiats Symboles du SIMDUT Risques chimiques – Diapositive – 3

  4. MATIÈRES INFECTIEUSES • Organismes et leurstoxines qui peuventprovoquer • des maladies • Se trouventsouventdans les hôpitaux • Ex: virus, bactéries, échantillonssanguins, Ébola

  5. Risques liés aux matières corrosives • Elles détruisent les tissus organiques au contact. • Elles corrodent les métaux Certaines matières corrosives sont aussi : • inflammables; • incompatibles avec d'autres produits chimiques. Ex: Eau du javel, acide chlorhydrique Risques chimiques – Diapositive – 5

  6. Risques liés aux matières inflammables et combustibles • Les principaux risques comprennent : – incendie; – retour de flamme; – sous-produit de combustion; – combustion spontanée. • Certains matériaux inflammables ou combustibles sont aussi : Ex: l’huile, le pétrole – toxiques; – asphyxiants. Risques chimiques – Diapositive – 6

  7. Risques liés aux gaz comprimés • Tous les gaz comprimés sont sous haute pression. • Certains gaz comprimés peuvent aussi être : – inflammables; – oxydants; – chimiquement instables; – toxiques; – asphyxiants; – corrosifs. Risques chimiques – Diapositive – 7

  8. Risques liés aux matières oxydantes • Elles accélèrent la propagation d'un incendie et augmentent son intensité. • Elles font que des substances qui, normalement, ne brûlent pas facilement dans l'air brûlent plus facilement et plus rapidement. • Elles provoquent l'inflammation spontanée d'une matière inflammable sans l'apport d'une flamme ou d'une étincelle. Risques chimiques – Diapositive – 8

  9. Produits toxiques • La toxicité est une mesure de la capacité d'empoisonnement d'un produit chimique. • Toutes les matières sont toxiques, à un certain degré. • La dose détermine le degré de toxicité. • Différentes substances affectent différents organes et provoquent différents effets, en fonction des propriétés spécifiques de chaque substance. Ex: Bleach, Mr. Clean, Tide,Cyanure, empoisonnement pour les rats Risques chimiques – Diapositive – 9

  10. Toxines • La toxicité est une mesure de la capacité d'empoisonnement d'un produit chimique. • Toutes les matières sont toxiques, à un certain degré. • Les toxines ont des effets au bout des expositions prolongées Ex: nicotine, amiante Risques chimiques – Diapositive – 10

  11. Risques liés aux matières dangereusement réactives • Les matières dangereusement réactives sont celles qui : – subissent des réactions intenses de polymérisation, de condensation ou de décomposition; – deviennent auto-réactives dans des conditions de choc ou d'augmentation de la pression ou de la température; – réagissent vivement avec l'eau en libérant un gaz létal. Risques chimiques – Diapositive – 11

  12. DRESS APPROPRIATELY Tie back long hair. Do not wear loose sleeves. Do not wear shorts. Do not wear sandals. Do not wear contact lenses.

  13. KNOW WHAT IS EXPECTED Read everything thoroughly before you begin doing anything No food or beverages. No gum chewing. Do not perform unauthorized experiments. Never work alone in the lab. Report all accidents immediately to your teacher.

  14. PREPARE A CLEAN WORK AREA Bring only those materials that are essential to completing the lab activity to your work area Keep aisles clear No running Do not leave experiments unattended and extinguish burners when away from desk

  15. WAIT FOR PERMISSION TO START All experiments performed in the Science lab must be performed under the supervision of the teacher It is essential that the teacher knows you are ready to begin, so you can be properly supervised

  16. USE COMMON-SENSE Whenever special attention is needed in a Lab activity you will see the wordCaution This means that special care must be taken when proceeding with this activity

  17. SAFETY EXPECTATIONS Work quietly and carefully Never work alone Tell your supervisor of health-related problems, allergies Do not attempt Lab activities at home unless told to do so by your teacher, and only under the direct supervision of an adult

  18. GENERAL SAFETY Touch substances only when told to do so Smell substances using the proper technique - wafting Chemicals should always be smelled by holding the container in front of your face and slowly (in a circular motion) wafting the vapors toward your nose. Never place the chemical right at your nose and inhale. Pour substances properly and safely

  19. GLASSWARE PRECAUTIONS Use only heat-resistant glass - Pyrex or Kimax Beware of hot glass. Hot glass looks like cold. Never use cracked glass. Always keep the open end of the test tube pointed away from everyone. Never allow any container to boil dry.

  20. ADDITIONAL PRECAUTIONS Report broken or damaged equipment immediately (DO NOT USE IT) Clean up work area completely when you are finished Report all accidents to the teacher immediately (no matter how minor)

  21. CLEAN-UP AND DISPOSAL Clean up all spills immediately Wash all glassware thoroughly and place in drying racks Clean up work area and return all equipment and materials as directed by your teacher Use the chemical waste bins to dispose of harmful chemical substances and dispose of broken glassware in the broken class container (metal), following your teacher's directions

  22. FIRST AID Rinse off substances immediately that come into contact with skin or clothing Wash hands before and after handling substances and before leaving the Lab Treat burns using cold water or ice

  23. PERSONAL PROTECTIVE EQUIPMENT Wear chemical splash goggles and protective shoes. Wear chemical resistant gloves Wear a lab coat and/or a chemical resistant apron

  24. SAFETY EQUIPMENT Know the location of all of the science lab safety equipment, including: Safety Shower Eye Wash Fire Blankets Fire Extinguishers Fire Exits Telephone First Aid Kit

  25. USING HOT PLATES Hot Plates Use hot plates that have thermostatic controls. Use a beaker of water on the hot plate to heat substances in test tubes. Use tongs or gloves to pick up hot objects. Turn off hot plate when not in use. Unplug cords by pulling on the plug, not the cord. Report and replace equipment that has frayed or has been damaged cords. Make sure electrical cords are placed properly where no one will trip over them.

  26. USING OPEN FLAMES Locate fire safety equipment before using any open flame (fire blanket, fire extinguishers, fire alarm, first-aid kit) Know the proper procedures for using aBunsen Burner Remove all flammable substances from the room before lighting a flame Use a test tube holder if the test tube is being heated in an open flame. Point the open end away from yourself and others. Gently move the test tube back and forth over the flame so that it is heated evenly

  27. CLASSES OF FIRES

  28. FIRE EXTINGUISHERS Know the Different Types

  29. ÉTIQUETTE DU FOURNISSEUR

  30. Contrat de sécurité au labo Lisez attentivement le contrat. Comprenez les attentes. Révisez-le avec vos parents. Ajoutez votre signature et retourne- le à votre ensignant(e)

  31. Au cas d’urgence POLICE FIRE AMBULANCE 911

  32. QU’AVEZ-VOUS APPRIS? Test http://edquest.caSafety Section

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