SNC2DLab SafetyDate:
Hazardous Household Waste
•Household hazardous waste (hhw) is
•Hhw can be in the form of solids, liquids, or gases
•Hhw can be absorbed through the skin, inhaled or ingested.
WHMIS
• was implemented in 1988 as a national system to provide information on hazardous materials used in the workplace.
•The key elements of the system are the
Symbol / Symbol Name / Description / Examples
/ Materials that are normally gaseous and kept under pressure. These may explode if dropped or exposed to pressure or heat. /
- Helium tank
- Propane tank
/ Materials which ignite easily and will continue to burn after being exposed to flame or spark. /
- Acetone
- Lighter Fluid
/ Materials which can cause other materials to burn. Will cause combustibles to react violently Can cause skin and eyes to burn.
/ Poisonous and potentially fatal materials that will cause severe harm if inhaled, ingested, or absorbed (even in small amounts).
/ Materials which may have harmful effects after repeated exposure. May cause death or permanent injury, birth defects, sterility, cancer, or even allergies. /
- Auto body paints
/ Infectious agents or biological toxins causing serious disease or death. Includes viruses, yeasts, molds, bacteria, parasites. /
- Anthrax
- HIV
- Aids
/ Materials that react and cause skin irritation, severe burns and tissue damage, lung damage, eye irritation or blindness, as well as environmental damage from fumes. /
- Ammonia
- Lye
/ These have unexpected reactions. They may react with water. They may be unstable in air. They may explode if exposed to shock or heat. May release toxic fumes or burn unexpectedly. /
- Nitroglycerine
Lab Safety
•Always be safety conscious.
• . Follow all instructions, verbal and written.
• . Become familiar with all the health and safety hazards of the equipment and chemicals to be used. If you are not comfortable, inform the teacher.
• . Use this equipment only in emergencies.
• – no accident is too small to report. Do not attempt to clean up a spill until checking with the teacher. Broken glassware must be dealt with immediately. Inform teacher of all broken glassware.
• while working with any chemical. It is recommended that you do not wear contact lenses during labs where chemicals will be used. If you get chemical in your eye, do not wait for the teacher, have a peer take you straight to the eyewash station and flush eyes for 5 minutes.
•If you get chemical splashed or spilled on your skin, flush it with water at one of the sinks around the room. If irritation or pain develops, see a physician.
• before leaving the laboratory.
•If you get chemicals on your clothes, wash the clothes, but not with good clothing. You should not wear loose clothing in the lab, nor should you wear good clothing.
• , as if they were dangerous.
• .
• while in the lab. Never taste the chemicals.
• of all books, bags, and clothing. Workstations should have only the materials needed for the lab. Do not sit on the workstation counter
• thoroughly and put it back where you found it.
•Follow all directions regarding the disposal of chemicals and solutions. Not everything goes down the sink. Do not put used chemicals or solutions back into the original container.
• .