SNC2D

Safety

Hazardous Household Waste• Household hazardous

waste (hhw) is any substance that may be harmful to you, animals, or the environment when not properly handled.

• Hhw can be in the form of solids, liquids, or gases.

• Misuse of hhw can lead to pollution of groundwater, lakes, rivers, and soil.

• An easy way to identify hhw is to look at the label and read disposal instructions.

Hazardous Household Product Symbols

• Containers labeled with this symbol are explosive. They may produce deadly fumes or vapors when exposed to air Keep away from heat.

• Any product with this symbol is flammable. Keep away from sources of spark or flame.

Hazardous Household Product Symbols

• Products with this symbol are poisonous or lethal if swallowed, inhaled, or absorbed

• A product with this symbol is corrosive and can cause burns to your skin and eyes and can eat away at other material.

Degree of Danger

• The degree of danger of hazardous household products is indicated by the shape outlining the symbol.

• Danger –

• Warning –

• Caution –

Workplace Hazardous Materials Information System

WHMIS• Workplace Hazardous Materials

Information System 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 material safety data sheets (msds), the simple labeling system, and the workers education program.

•The WHMIS Board contains all the symbols with explanations.

• There is also a binder with the data sheets for each chemical in the facility.

• This is a container of toluene.

• You can see the WHMIS label clearly by the dashed border and the hazard symbols.

WHMIS Symbols

• Compressed Gas – materials that are normally gaseous and kept under pressure. These may explode if dropped or exposed to pressure or heat.

• Flammables and Combustibles – materials which ignite easily and will continue to burn after being exposed to flame or spark.

WHMIS Symbols Continued• Oxidizing Material – materials

which can cause other materials to burn. Will cause combustibles to react violently Can cause skin and eyes to burn.

• Toxic, immediate and severe effects – poisonous and potentially fatal materials that will cause severe harm if inhaled, ingested, or absorbed (even in small amounts).

WHMIS Symbols Continued• Toxic, long term effects – materials

which may have harmful effects after repeated exposure. May cause death or permanent injury, birth defects, sterility, cancer, or even allergies.

• Biohazardous infectious – Infectious agents or biological toxins causing serious disease or death. Includes viruses, yeasts, molds, bacteria, parasites.

WHMIS Symbols Continued• Corrosive Materials – 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.

• Dangerously reactive material – 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.

Laboratory Equipment

Laboratory Equipment

More Laboratory Equipment

Even More Lab Equipment

Lab Safety

Lab Safety• Always be safety

conscious. Move around the laboratory in a safe and slow manner.

• Never perform unauthorized experiments. Follow all instructions, verbal and written.

• Plan ahead. 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.

• Know the location of the safety equipment and fire exits. Use this equipment only in emergencies.

• Report all accidents – 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.

• Safety glasses must be worn 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.

• Wash hands thoroughly 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.

• Handle all chemicals as if they were dangerous.

• Tie back long hair.• Do not consume

food or drink while in the lab. Never taste the chemicals.

• Keep workstations clear of all books, bags, and clothing. Workstations should have only the materials needed for the lab. Do not sit on the workstation counter

• Clean all equipment 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.

• Clean your lab station before leaving the classroom.