Standard Operating Procedure
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Read the EH&S Standard Operating Procedures Fact Sheet before filling out this form.
Print out the completed form and keep a readily accessible hard copy in the lab (also
keeping an electronic copy is highly recommended).
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Date:
November 13, 2010
SOP Title:
Acid/Base Bath
Principal Investigator:
Richmond Sarpong
Room and Building:
839 Latimer
Lab Phone Number:
Section 1 – Process
Using Acid/Base baths for cleaning dirty glassware.
Section 2 – Hazardous Chemicals
Concentrated strong acids and bases such as KOH and H2SO4
Section 3 – Potential Hazards
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Inhalations of noxious acid/base fumes
Spilling of acid/base bath down drain.
Skin contact with concentrated acid/base bath.
Eye contact with concentrated acid base/bath.
Ingestion of concentrated acid base bath.
Uncontrolled release of acid/base bath down drains into environment.
Section 4 – Approvals Required
Generation and disposal of an acid/base bath should have approval of PI.
Section 5 – Designated Area
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Acid/Base baths should be located in cabinets underneath sinks. They should under no circumstances
be out in the open.
Should there be no space available for an acid/base bath in one’s lab, the user should seek one located
in another lab.
Acid/Base baths should be located in a secondary container so as to prevent spills leaking into lab
space.
Section 6 – Special Handling Procedures and Storage Requirements
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When using an acid/base bath, protective eye ware, gloves, and a protective lab jacket must be worn at
all times. Acid/base baths should not be moved from the immediate vicinity of the sink unless they
are being generated or disposed.
Acid/Base baths should not be transported between labs.
One should not use hands to retrieve glassware from acid/base bath. All glassware being removed
from or being put into the base bath should be done so with tongs.
Section 7 – Personal Protective Equipment
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Rubber lab coat, protective goggles, rubber gloves, and closed toed shoes are the minimum PPE
requirements. For base bath generation/disposal.
Normal lab coat, protective goggles, and nitrile gloves, and closed toed shoes are minimum PPE
requirements for acid/base bath use.
Skin should not be exposed.
Section 8 – Engineering/Ventilation Controls
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Acid/Base baths should be stored in the cabinets under the skin at all times.
Lids should remain tight and secure on acid/base bath.
Acid/Base baths should be secured in case of earthquakes.
Section 9 – Spill and Accident Procedures
It is the policy of the College that the CAMPUS EMERGENCY RESPONSE PLAN be activated
immediately under any of the following conditions: (1) any major chemical spill, (2) any toxic
chemical spill that involves chemical exposure or (3) any chemical spill that gives the perception
(because of odor, for example) that there has been a hazardous release.
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Attend to injured or contaminated persons and remove them from exposure.
Alert people in the laboratory to evacuate.
If spilled material is flammable, turn off ignition and heat sources.
Call Chemical Spill Emergency Response number (2-9090).
Keep doors and windows to affected area closed.
Have person knowledgeable of incident and laboratory assist emergency personnel.
Taken from http://www.cchem.berkeley.edu/cchasp/?q=section10#5
Section 10 – Waste Disposal
Fill out Material Packing Lists with information about unwanted chemicals and submit these to the Hazardous
Materials Management Team.
Section 11 - Decontamination
Neutralize contaminated area with appropriate reagents and then rinse with water
Section 12 – Process Steps
Process Steps
Safety Measures
Training Documentation
Name (Printed)
Signature
Date