Safety in the Laboratory Chemistry 1361 SC 217. Elements of Working Safely in the Laboratory Become...

Safety in the LaboratoryChemistry 1361

SC 217

Elements of Working Safely in the Laboratory

Become familiar with:

•Laboratory space and its safety features

•Personal safety including Personal Protective Equipment (PPE)

•Materials to be used in the laboratory

•Preparation for laboratory

•Awareness in the laboratory

Entry Floor plan of SC 217 Entry

HOOD

HOOD

HOOD

HOOD

Lab Bench

Lab Bench

Lab Bench

Eye Wash

Scales

18

17

16

12 13

11 14

10 15

6 7

5 8

4 9

1

2

3

Oven Sink Sink

Safety Shower

„ ƒ

HOOD

HOOD

Sink Sink

Laboratory Space and its Safety Features

The lab viewed from the South wall. Note location of eyewash and safety shower.


The lab viewed from the North wall.


A view of the East wall of the lab.

Balances

Oven

sink


Locate the eye wash and the safety shower in the NW corner of SC 217. Read instructions.



Portable fire extinguishers:

•In the lab, mounted on the west wall

• In the hallway, 30 ft left and opposite wall from the entry door.

Fire Hose (last resort – should have been out of building by then):

•Fire hose is at either end of the hall just before the exit doors

•Turn red knob to activate

•Pull hose all the way out – it will come on automatically.







•Procedures to be used in the laboratory

Personal Safety Including Personal Protective Equipment (PPE)

Personal protective equipment, commonly referred to as "PPE", is equipment worn to minimize exposure to avariety of hazards. Examples include:

•gloves•foot and eye protection•protective hearing devices (earplugs, muffs)•hard hats•respirators•full body suits.

(From OSHA 3151-12R 2003)

Personal Safety Including Personal Protective Equipment (PPE)

Of the PPE listed, for CHEM 1361:•Required

•eye protection (enclosed goggles, not glasses)•closed shoes (no sandals, flip-flops, or open shoes)•long pants•shirts or blouses that cover the torso (no midriff, tank tops, etc.)

•Recommended•gloves (both nitrile and latex will be available)•lab apron, lab coat, etc.

Material Safety Data Sheets (MSDS):

•Provide manufacturer information about each chemical used in the lab

•Are available through print copy or electronic means

•Must be supplied by companies to customers of their products

•Must be supplied to employees by employers according to the 1983 OSHA standard “Hazard Communication in the Workplace” (29 CFR 1910.1200)

•Are designed to basically answer four broad questions about a chemical

Materials to be Used in the Laboratory

The sixteen sections of an MSDS are roughly grouped into providing answers to four questions about a material. (Based on ANSI Standard Z400.1)

Question 1. What is the material and what do I need to know immediately in an emergency?

•Section 1. Product and Company Identification

•Section 2. Hazards Identification

•Section 3. Composition/Information on Ingredients


Question 2. What should I do if a hazardous situation occurs?

•Section 4. First Aid Measures

•Section 5. Fire Fighting Measures

•Section 6. Accidental Release Measures


Question 3. How can I prevent hazardous situations from occurring?

•Section 7. Handling and Storage

•Section 8. Exposure Controls/Personal Protection

•Section 9. Physical and Chemical Properties

•Section 10. Stability and Reactivity


Question 4. Is there other useful information about this material?

•Section 11. Toxicological Information

•Section 12. Ecological Information

•Section 13. Disposal Considerations

•Section 14. Transport Information

•Section 15. Regulatory Information

•Section 16. Other Information


•Sources of MSDS Sheets:

•Available in hard copy in each laboratory for the chemicals in use

•Available for all chemicals in storeroom in Room 222, the storeroom

•Manufacturer’s web sites

•Using the term MSDS in any internet search engine will provide a large number of sources

•Example of an internet site: http://www.ilpi.com/msds/,


http://www.ilpi.com/msds/

http://www.ilpi.com/msds/

National Fire Protection Association Codes (NFPA)

NFPA codes – each colored diamond represents one aspect of a material’s hazards

Red

Yellow

White

Blue



RedFire HazardFlash points4: < 73 oF

3: < 100 oF2: < 200 oF1 >200 oF

0 - will not burn

BlueHealth Hazard4 - Deadly3 - Extremedanger2 - Hazardous1 - Slightly Hazardous0 - Normal



YellowReactivity4 - May detonate3 - Shock & heat may detonate2 - Violent chemical change1 -Unstable if Heated0 - Stable

WhiteSpecific HazardOxidizer OXYAcid ACIDAlkali ALKCorrosive CORUse No WaterRadiation Haz


•Read laboratory exercise

•Complete any prelab assignment and submit on time

•Check safety data and physical properties for any materials with which you are not familiar

•Bring your PPE with you – goggles, proper attire

Preparation for Laboratory

Common sense should suggest the following to you:

•Never put anything in or near your mouth or eyes

•Broken glass will cut

•Hot glass will burn

•Those around you are liable to pose unexpected dangers

•Do not let chemicals come in contact with your skin

•Fume hoods should be used as necessary to avoid inhalation hazards

•Bookbags and backpacks in the aisles are a tripping hazard – put them in the southwest corner

Awareness in the Laboratory

Common courtesy should suggest the following to you:

•Clean up after yourself

•Put equipment back in proper storage area

•Place hotplate (if cool) back in community drawer

•Properly organize the community drawers

•Wipe down your work area

•Lock your drawer and return the key to the keyboard

Awareness in the Laboratory

Equipment and Supply Questions?

• See your instructor first• If necessary, you may have to go to Room 222, the

stockroom

Safety in the Laboratory Chemistry 1361 SC 217. Elements of Working Safely in the Laboratory Become...

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