Lab Safety

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What is the lowest number on the NFPA diamond

0

What are the best practices for safely handling waste in the lab?

1. Always wear appropriate Personal Protective Equipment. 2. Check labels or instructions before any disposal.

Identify the types of information that are necessary to communicate with emergency responders.

1. Any chemicals involved in an incident 2. Any other hazards present in the lab 3. How the incident happened

Identify the precautions to take with exits in the lab.

1. Do not block a door with an EXIT sign. 2. Locate the exits prior to the start of lab.

Steps to clean up glass

1. If you drop or break glassware in lab, first get thick gloves or dustpan 2. Then, carefully collect the glass 3. Finally, place all that material into the broken glass container

Steps for a liquid clean up spill

1. Surround the area with absorbent material then cover the spill. 2. Scoop up the material and place in a plastic bag 3. Place the bagged waste in a solid waste container 4. Wipe down the area with detergent and water

What is the highest number on the NFPA diamond

4

What information does not need to be included a chemical waste label?

A description of the experiment the chemicals were used for

Gas Cylinders could ____ if disturbed or knocked over

explode

What emergency equipment is used for Chemicals in eyes

eyewash station

What emergency equipment is used for fire on person

fire blanket

What emergency equipment is used for large fire on the benchtop

fire extinguisher

What emergency equipment is used for cuts and scrapes

first aid kit

What does red mean on the NFPA sign

flammability

What does blue mean on the NFPA sign

Health Hazard

What chemicals can be cleaned up with a general spill kit

phosphoric acid, methanol, acetone

What emergency equipment is used for chemicals on clothes

safety shower

where should you dispose syringe tips

sharps container

where should you dispose an unused solid reagent

solid waste container

what does white mean on the NFPA

special hazard

Which is NOT a good source of information about the hazards that affect waste disposal in a chemistry lab?

your lab partner

What chemicals can be cleaned up with a special spill kit

Mercury and hydrofluoric acid

Should you ever touch a gas cylinder in the lab?

No, alert a TA if one needs to be moved

What does PASS mean (fire extinguisher)

P- pull the pin A- aim S- squeeze S- sweep

When disposing waste you should wear___

PPE

before leaving the lab you should

Remove your gloves, Wash your hands, and Remove your lab coat

What can you look at to find information on how to handle a specific chemical?

Safety Data Sheets

What kinds of lab waste is there?

Solid, aqueous, organic, biohazard, glass

Under what conditions should a student inform the instructor of a lab injury?

The instructor must be informed of all laboratory injuries.

where should you dispose titrant solution

Nalgene bottle with cap

What is generally the best approach when liquid from a large reagent bottle is needed in an experiment?

Pour some of the reagent from the bottle into a beaker, then use as needed in the procedure.

What does yellow mean on the NFPA sign

reactivity hazard

What information is needed in order to be prepared for an emergency?

1. Contact information for emergency personnel 2. Location of lab phone and first aid kit 3. Location of all exits 4. Understanding of where to go should an emergency occur

What information is necessary to review in order to be considered familiar with the Safety Data Sheet (SDS) of a substance?

1. Identification and description of substance 2. Hazard warnings 3. Personal protection and first aid recommendations 4. Handling, storage, and reactivity information

Which types of signs are posted to convey information about chemical storage?

1. National Fire Protection Association (NFPA) diamond 2. Gas Cylinder sign 3. Hazard signs such as "Flammable," "Oxidizer," and "Corrosive"

What is the best way to smell a chemical sample?

Use your hand to gently waft the smell toward you.

What is the main precaution to take if a Gas Cylinder sign is present in the lab?

Visually check that the gas cylinder is restrained but keep a safe distance from it.

when should you remove your goggles in the lab room?

When everyone in the room is done handling any chemicals or glassware

When should you start a new chemical waste container in the lab?

When the contents of the current container are a couple inches below the brim of the container

What is the last step of any spill cleanup procedure?

Wipe down the affected area with detergent and water.

where should you dispose broken flask

box lined with puncture resistant bag

Should different kinds of waste ever be mixed?

no

if an emergency occurs, should you grab your belongings?

no

What is an example of a special hazard

oxidizers, acid, radiation

Determine when to put on disposable gloves for work in the lab.

Before handling any glassware or chemicals for the experiment


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