Video: Lab Safety Rules and OSHA Pictograms (Vocabulary Flashcards)

A set of vocabulary-style flashcards covering lab safety rules and OSHA pictograms, designed to prepare for exams on lab safety and hazard communication.

Student Safety Contract

Two copies are provided: one signed by student and parent/guardian before participation; the second kept in the science notebook as a reminder of safety rules.

Goggles

Mandatory eye protection whenever chemicals, heat, or glassware are used.

Lab Apron

Protective clothing worn during laboratory activities.

Closed-Toe Shoes

Foot protection; sandals are not allowed in the lab.

Fume Hood

Ventilated enclosure used for volatile substances or poisonous vapors; never place your head inside.

Well-Ventilated Area

Workspaces should be ventilated; use the fume hood when handling volatile or poisonous vapors.

Safety Equipment Locations

Know where the first aid kit, eyewash station, safety shower, fire extinguisher, and fire blanket are located, and know the exits.

Read Procedures Thoroughly

Read all procedures before entering the laboratory to be prepared.

No Eating or Drinking in Lab

Do not eat food, drink beverages, or chew gum in the laboratory; do not use lab glassware for food or beverages.

No Horseplay

Horseplay, practical jokes, and pranks are dangerous and prohibited.

Waste Disposal

Dispose of chemical waste in proper containers; sinks used only for water or designated solutions; check container labels twice before adding waste.

Hand Washing

Wash hands with soap and water after all experiments; work surfaces and equipment cleaned after each lab.

Assigned Laboratory Station

Experiments must be conducted at a designated station; do not wander or distract others.

Sharp Instruments Handling

Carry knives and sharp tools with tips down and away; grasp by handles; cut away from your body.

Medical Condition Notification

If you have allergies or medical conditions, consult your physician before working in the lab.

Contact Lenses Policy

Wearing contact lenses in the lab is not allowed unless you have instructor permission.

Mouth Suction to Fill Pipet

Never use mouth suction to fill a pipet; use a rubber bulb or pipet pump.

Transferring Reagents Safely

Hold containers away from your body when transferring reagents.

Acids Handling

Acids must be handled with care; add acid to water, swirl, and be mindful of heat, especially with sulfuric acid.

Flammable Liquids Handling

Handle flammable hazardous liquids over a pan to contain spills; keep them away from open flames or heat sources.

Glassware Lubrication

Lubricate glassware (tubing, thermometers, etc.) before inserting into stoppers; protect hands when inserting/removing; if stuck, ask the instructor.

Broken Glass Cleanup

Never handle broken glass with bare hands; use a brush and dustpan; place broken glass in the designated disposal container.

Inspect Glassware Before Use

Examine glassware for chips or cracks and avoid using dirty glassware.

Heated Container Safety

Do not look into heated containers; hot glass remains dangerously hot and should be cooled on an insulating pad.

Do Not Look into Heated Container

Do not look into containers being heated; use proper tools to handle hot items.

Electrical Safety (General)

When removing plugs, grasp the plug not the cord; dry hands before touching switches or outlets.

Wash Bottles Use

Fill wash bottles only with distilled water and use them for rinsing glassware or adding water as intended.

OSHA Safety Pictograms

Standard symbols on chemical labels to convey hazards under OSHA Hazard Communication Standard.

Health Hazard Pictogram

Indicates hazards such as carcinogens, mutagens, reproductive toxicity, respiratory sensitizers, and other chronic hazards.

Flame Pictogram

Indicates flammable substances; includes pyrophorics and self-heating materials.

Exclamation Mark Pictogram

Indicates irritants, skin sensitizers, acute toxicity, narcotic effects, or respiratory tract irritation.

Gas Cylinder Pictogram

Indicates gases stored under pressure.

Corrosion Pictogram

Indicates skin/eye corrosion or burns and corrosion to metals.

Exploding Bomb Pictogram

Indicates explosives, self-reactives, or organic peroxides.

Flame Over Circle Pictogram

Indicates oxidizers.

Environment Pictogram

Indicates hazards to the environment, particularly aquatic toxicity.

Skull and Crossbones Pictogram

Indicates acute toxicity (fatal or toxic).