Laboratory Regulations, Chemistry tutorial


While working in the laboratory of science, we will have certain vital responsibilities which don't apply to other class-rooms. We will be working with apparatus and materials which, if handled inaccurately or improperly, have the potential to cause injury or uneasiness to someone else and also yourself. 

The science laboratory can be a safe place in which to work if you, the student, are foresighted, alert, and careful. 

Safety Regulations:

The given practices will be followed: 

1) Report any accident to the instructor instantly, no matter how small, comprising reporting any scratch, cut, burn, or corrosive liquid on skin or clothing. 

2) Prepare for each and every laboratory activity via reading all the instructions. Follow all directions totally and intelligently. Prepare note of any modification in method provided by the instructor. 

3) Any science project or individually considered experiment should be approved by the instructor or teacher. 

4) Make use of only such materials and apparatus authorized by the instructor. 

5) Inform the teacher without delay of any equipment not working correctly. 

6) Clean up any non-hazardous or harmless spill on the floor or work space without delay. 

7) Wear proper eye protection, as directed by the instructor, whenever you are working in the laboratory. Safety goggles should be worn throughout hazardous activities comprising caustic or corrosive chemicals, heating of liquids and other activities which might injure the eyes. 

8) Splashes and fumes from the harmful or hazardous chemicals present a special danger to wearers of the contact lenses. Thus, students must preferably wear regular glasses within splash-proof goggles throughout all the lab activities where exposure to chemicals or chemical fumes is possible. 

9) Students having open skin wounds on hands should wear gloves or be excused from the activity of lab. 

10) Never take hot apparatus or dangerous chemicals via a group of students. 

11) Check labels and apparatus instructions cautiously. Be sure right items are used in the proper manner. 

12) Never taste anything or touch chemicals by the hands, except specifically instructed to do so. 

13) Test for odor of chemicals just by waving your hand above the vessel and sniffing carefully from a distance. 

14) Drinking or eating in the laboratory or from laboratory apparatus is not permitted. 

15) Make use of a mechanical pipette filler (never the mouth) whenever measuring or transferring small quantities of liquid by a pipette. 

16) Whenever heating material in a test-tube, don't look into the tube or point it in the direction of any person throughout the procedure. 

17) Never pour reagents back to the bottles, exchange stoppers of bottles, or place stoppers on the table. 

18) Whenever diluting the acids, always pour acids to the water, never the reverse. Combine the liquids gradually while stirring to distribute heat buildup all through the mixture. 

19) Keep hands away from the eyes, face and clothes while employing solutions, specimens, equipment, or materials in the laboratory. Wash hands as necessary and wash thoroughly at the conclusion of the laboratory period.

20) Inform or report any accident to the teacher instantly, no matter how minor, including reporting of burn, scratch, cut or corrosive liquid on clothing or skin. 

21) Dress properly as per the requirement of the laboratory. Avoid wearing bulky or loose fitting clothes or dangling jewelry. Wearing laboratory coat in the lab is a necessity

22) Never work alone in the laboratory or workshop. In case of working alone, ensure that somebody knows where you are and what you are doing.

23) Never play or run in the laboratory. No food or drink must be consumed in the workshop and laboratory.

24) Never taste any solvent or chemical and pipette out by mouth. By no means smell gases directly.

25) Wear gloves whenever employing any harmful or toxic material. Wear safety goggles whenever working with flames, heated liquids or glass-ware.

26) Don't make use of any apparatus unless you are trained and permitted. 

27) Whenever working with electric circuits, be sure that the current is turned off prior to making adjustments in the circuit. Avoid utilization of extension cords whenever possible. Never ever make use of, modify, attach or otherwise change any high voltage equipment without discussing with the concerned in charge.

28) Don't go away any ongoing experiment unattended.

29) Be familiar with the positions of fire blankets and fire extinguishers in the laboratory.

Laboratory regulations:

You should encompass a lab Notebook and bring it to the laboratory every time you have to be in the lab. You must keep a good note-book with all the computations and the results as your instructor or teacher will grade your Lab note-books at the end of each and every experiment. Lastly, each and every member of your group has to write a 5 or 6 page lab report after completing the experiment. This is going to be an individual report thus, even if your results are similar. The reports you write should be your own work. If your instructor finds out that your report is closely similar with another member of your group, you will not receive any credit for that report and he/she might consider it as unethical or cheating. 

Attendance is obligatory and you are expected to attend all the scheduled laboratory sessions. If you miss more than two-lab session without a valid reason you will be automatically dropped from the laboratory. Keep this is a group work and if you can't be there inform other members of your group. Please be as well on time as your group members will depend on you to begin the experiments.

Format of the Lab Report:

You must prepare your lab reports by handwriting. They must comprise tables and illustrations where required. Usually, a lab report must have the given sections: title page, introduction, experimental part, results-discussion and references. Your title page must be a separate page comprising the title of the project which may simply be the name of the experiment, your name, name of the course and the date the report.

Laboratory Care and Waste Disposal:

Keep in mind that the equipment you use in the laboratory will be utilized by most of the other students. Please leave the equipment and all workspaces as you wish to find out them. After the end of each and every lab, clean off your work area. Wash your glassware. Whenever weighing any material on the balances, do not weigh directly to the balance pan. Weigh your material on a piece of weighing paper. The balances are extremely sensitive instruments and must be treated by great care. 

If you take more reagents than you require, don't place excess back to the bottle. It might be contaminated. Threat it as waste and dispose of it accordingly. It is most probable that, throughout any experiment you will perform, you will make pr produce some waste chemicals and solutions to dispose of. Never place them down the sink unless specifically told to do so by your instructor. There will be organic, inorganic and solid waste vessels or containers in the lab. Dispose of your waste in suitable container.

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