my laboratory guidelines

7/28/2019 My Laboratory Guidelines

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Colegio de San Juan de LetranCollege of Liberal Arts & Sciences

Natural Sciences Laboratory

Laboratory Policies and Procedures

1. REQUESTS OF MATERIALS

a. Materials for experiments must be requested three (3) days before the schedule by filing up

the Requisition Slip for Professors. Borrowers Slip for Students should be given one (1)day before the experiment.

Experiment Day Day Requested

Monday Wednesday of the other week

Tuesday Thursday of the other week

Wednesday Friday of the other week Thursday Monday of the week

Friday Tuesday of the week

Note: Requisition slip should be properly filled up by stating the materials needed and

quantity/amount/size.

b. The students should provide themselves with the following materials during there

experiments:

Cleaning/washing materials such as detergent, soap, scotch brite

Matches, labelling paper, masking tapes, marking pens, scissors

Rags

Personal hygiene materials such as rubbing alcohol, tissue paper, towels

c. Requests for minor experiments (meter stick, ruler, stop watch) can be requested one day

before the schedule. d. Materials may be requested by either the professor or students. These will be issued in

exchange of their ID.

e. All requested and returned materials must be recorded in the Request Logbook.f. Strictly no materials will be issued without prior request. The NO RESERVATION,

NO LABORATORY USE policy shall be implemented.

g. Any changes with the laboratory experiment must be properly communicated with the

Science laboratory technician one day before the new schedule.

h. If a student missed a laboratory experiment, there is absolutely NO make-up.i. Special Experiments/ Investigatory Projects:

Special experiments / investigatory projects must be approved by and performed

under the supervision of the professor.

Materials / chemicals to be used for the experiments other than the prescribed

experiments will be shouldered by the students.

j. Request form of non-science students should be countersigned by their professor.


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2. Students are not allowed to enter or perform experiments in any laboratory room without the

professors supervision.

3. If the faculty is absent during the scheduled experiment, the requested experiment should beperformed the following meeting.

4. RETURNING OF MATERIALS

Glassware and equipment should be cleaned before returning to the stockroom.Physics materials should be properly and orderly return. (Return as Issued)

5. BREAKAGE /DAMAGE OF MATERIALS

The student is responsible for the issued materials. Any breakage / damage that he / she mayincur will be recorded immediately in the Student Accountabilities Logbook. Breakage/

damage of materials must be replaced the soonest possible time.

6. CLEARANCE

At the end of the semester, all students must secure a clearance from the laboratory andpresent this to the professor before taking the final examination.

7. Only authorized personnel is allowed in the Laboratory Stockroom. The laboratory office/

stockroom can only be opened by the laboratory personnel and authorized persons ONLY.

The laboratory stockroom is for laboratory personnel ONLY.

LABORATORY GUIDELINES1.CHEMICAL STORAGE:

a. Chemicals are properly stored according to its hazard classification. The safety data colorcode is used, thus:

RED for flammability

BLUE for health hazard

YELLOW for reactivity hazardWHITE for contact hazard

ORANGE for general chemical storage2. EQUIPMENT & APPARATUSAll equipment and apparatus must be stored properly and labelled accordingly.

3. CHEMICAL PREPARATION

a. Proper attire for the preparation of chemicals/ reagents must be observed.(laboratory gown/ apron goggles/ gas mask & gloves).

b. Use fume hood whenever dispensing chemicals that are toxic and have obnoxious odor.

c. Prepared reagents must be properly labelled.4. LABORATORY SUPPLIES, FIXED ASSETS & SERVICES

a. Definition of terms:

Supplies: refer to consumable materials such as office supplies, chemicals, microscope

slides and cover slips, etc. Fixed Assets: refer to non-consumable or fixed materials, such as tables, microscopes and

all electrical and/ or electronic equipments.

Services: refer to any service (carpentry, electrical, mechanical, etc.)b. Service Requisition Form is issued by the Auxiliary Office. Supplies and Fixed Asset

Requests are forwarded to the Deans Office for encoding in the Database System of the

Financial Affairs office.


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PHYSICAL SCIENCE LABORATORYSAFETY RULES

1. Always wear your laboratory gown, goggles and gas mask when performing experiments.

2. Use reagents, water and gas economically.3. Avoid contamination of reagents. Observe proper dispensing of chemicals.

Spilled chemicals on the skin are washed off immediately with plenty of water.

4. Always clean your working area and make sure it is free from any chemical spill beforeleaving.

5. Never touch chemicals with your bare hands. Do not taste chemicals unless otherwise directed

to do so.

6. Use the fume hood when working with toxic vapour.7. Should an odor test be necessary, do not inhale directly from the container or test tube. Instead

waft a bit of vapour towards your nose.

8. Protect your hands with towel or rag when a glass rod, glass tubing, or thermometer is to beinserted.

9. Make sure that there is already a lighted match at the nozzle of the gas burner before opening

the gas line.10. Always use non-luminous flame.

11. Always set aside heated objects carefully when not in use.

12. Observe proper waste disposal of chemicals. Use specified container.13. Upon completion of the experiment, wash all apparatus used and return them to the

stockroom.14. Before leaving the laboratory, ensure the following:

Water and gas outlets are turned off.

The working table/ areas are clean and free from any chemical spill.


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PHYSICAL SCIENCE LABORATORY

DOS AND DONTS

1. NO smoking.

2. NO eating and drinking.

3. NO littering and loitering.

4. NO bags and books on the worktables during experiments. They must be placed on the

tabletop.

5. Do not play with the electric outlets and water/gas valve.

6. Observe the laboratory safety rules.

7. Observe proper laboratory operations.

8. Observe proper waste disposal.

9. Conserve water.

10. Report immediately any injury/ accident to your professor.

11. Perform experiments with teachers supervision.

12. Observe proper decorum while waiting for your instructor and performing experiments.


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BIOLOGY LABORATORY

SAFETY RULES

1. Always wear laboratory gown, goggles and gas mask when performing the experiments and

dissection.

2. Read and understand the procedures before the start of the experiment.3. Use reagents and water economically.

4. Do not apply flashing solution to your specimen during your dissection.

5. Be extra careful in handling the microscopes, prepared slides and specimens.6. Avoid contamination of reagents. Observe proper dispensing of chemicals. Spilled chemicals

on the skin are washed off with water immediately and thoroughly.

7. Never touch chemicals with your bare hands. Do not taste nor inhale chemicals unlessotherwise directed to do so.

8. Should an odor test be necessary, do not inhale directly from the container or test tube.

Instead, waft a bit of vapour towards your nose.

9. Protect your hands with a towel or rag when a glass rod, glass tubing, or a thermometer is tobe handled.

10. When an alcohol lamp is used, never tilt the lamp when being lighted.

11. Always set aside heated objects carefully when not in use. Use tongs/ potholders intransferring/ holding any heated object.

12. Make sure that your hands are dry when connecting any electrical equipment to the power

supply.

13. Observe proper waste disposal of chemicals. Use container specified for the purpose.14. Always return stuffed animals and specimen to its designated display cabinets after use.

15.Wash properly your hands with soap and water after dissection.

16. Upon completion of the experiments and/ or dissection, wash all apparatus used and returnthem to the stockroom properly.

17. Before leaving the laboratory, ensure the following:

Water outlets are turned off.

The working table/ area is clean and free from any chemical spill.


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BIOLOGY LABORATORY

DOS & DONTS

1. NO smoking.

2. NO eating and drinking.

3. NO littering.

4. NO bags & books on the worktables during experiments. Place them on the tabletop.

5. Do not play with water & electrical outlets.

6. Observe laboratory safety rules.

7. Observe proper laboratory operations.

8. Observe proper waste disposal.

9. Conserve water.

10. Report immediately any injury/ accident to your professor.

11. Settle immediately any incurred laboratory damages/ breakages.

12. Perform experiments with teachers supervision.

13.Observe proper decorum while waiting for your instructor and when performing experiments.


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May 25, 2012

DR. ROWENA CAPULONG-REYES

Dean, CLAS

Dear Maam:

We are submitting our Science Laboratory Policies and Procedures, Laboratory Guidelines andLaboratory Rooms Safety Measures/ Dos & Donts to be implemented this 1 st semester AY

2012-2013.

We are looking forward for your approval on this matter. Thank you very much.

Truly yours,

MARIA LOURDES REYNOSO

Nat. Sci. Laboratory Technician

KATHLEEN L. MAGNO

Nat. Sci. Laboratory Technician

my laboratory guidelines

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