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					 Department of Safety and Risk Management Laboratory Safety Program Tel: 874-2618, Fax: 789-5126

            Template Form: URI Laboratory Specific Standard Operating Procedure
       All labs must modify this document to reflect what is actually in their labs. Review the MSDS.
                   This is a guide only. Each lab must complete form for their own use.

TITLE: Flammable/Ignitable Chemicals
(e.g. ethyl ether, N-propyl alcohol, methyl alcohol, isopropyl alcohol)
Principal Investigator:______________________________________
Room & Building: _______________________________________
Phone Number:        _______________________________________
Prior Approval is Required: □YES                        X NO

Section 1: (Check One)
□Process (Method)                    □Hazardous Chemical                            X Hazard Class

Section 2: Describe Process, Hazardous Chemical or Hazard Class
List the names of all hazardous chemicals including (IUPAC) name, common name, and CAS number
included in this SOP.

Ethyl ether                 CAS No. 60-29-7    synonyms: ether, diethyl ether, diethyl oxide
N-propyl alcohol            CAS No. 71-23-8    synonyms: 1-propanol, n-propanol
Methyl alcohol              CAS No. 67-56-1    synonyms: methanol, wood alcohol, carbinol
Isopropyl alcohol           CAS No. 67-63-0    synonyms: 2-propanol, sec-propyl alcohol

Section 3: Potential Hazards.
Describe the potential hazards for each process, hazardous chemical or hazard class. Include physical
and health hazards. Record the LD50 and Permissible Exposure Limit (PEL) and ACGIH Threshold Limit
Value (TLV) if available. Check MSDS for this information.

Hazard Classification: Flammable
LD50: ranges from 1215-5628 mg/kg

Flammable liquid and vapor. Ethyl ether is EXTREMELY FLAMMABLE. Harmful if swallowed, inhaled or
absorbed through the skin. Methyl alcohol may be fatal or cause blindness if swallowed. Affects the
central nervous system. Causes irritation to skin, eyes, and respiratory tract.

Methyl alcohol and n-propyl alcohol:
OSHA (PEL): 200ppm (TWA), 250ppm (STEL)
ACGIH (TLV): 200ppm (TWA), 250ppm (STEL)

Isopropyl alcohol and ethyl ether:
OSHA (PEL): 400ppm (TWA),
ACGIH (TLV): 400ppm (TWA), 500ppm (STEL)

Per OSHA 1910.1450 (lab Standard), Appendix A: Section E(1)(n)):
If the PEL or TLV is <500 ppm for toxic gases or volatile liquids a hood is required.

Section 4: Personal Protective Equipment.
Identify the required level of PPE and hygiene practices needed. PPE includes gloves, aprons, lab coats,
eye protection, etc. Check MSDS for this information.

Goggles and shield, lab coat and apron, vent/work in hood, Proper gloves: As recommended in the
“Chemical Resistance and Barrier Guide” given to each lab. methanol: neoprene ethyl ether: nitrile
       propyl alcohol: nitrile and natural rubber

SRM: Revised 05/01/13                                       1
 Department of Safety and Risk Management Laboratory Safety Program Tel: 874-2618, Fax: 789-5126

Section 5: Engineering Controls
Describe engineering controls that will be used to prevent or reduce employee exposure to hazardous
chemicals. This includes ventilation devices such as fume hoods.

A system of local and/or general exhaust is recommended to keep employee exposures below the
Airborne Exposure Limits. Local exhaust ventilation is generally preferred because it can control the
emissions of the contaminant at its source, preventing dispersion of it into the general work area.

Per OSHA 1910.1450 (lab Standard), Appendix A: Section E(1)(n)):
If the PEL or TLV is <500ppm for volatile liquids and toxic gases a hood is required.

Section 6: Special Handling and Storage Requirements
List storage requirements for hazardous chemicals involved with the SOP, including specific areas, and
policies regarding access to chemicals. Special procedures such as dating peroxide formers are
appropriate here. How will contamination of the lab be prevented? Is a special “designated area”

Protect against physical damage. Outside or detached storage is preferred. Inside storage should be in
a standard flammable liquids storage room or cabinet. Separate from oxidizing materials. Bond and
ground containers when transferring liquid. Isolate from other combustible material. Protect from direct
sunlight. Protect against static electricity and lightning for large quantity storage rooms. For ethyl ether,
the reactivity hazard may be increased on longstanding due to peroxide formation. Ether is subject to
peroxide formation in opened containers and should be protected from exposure to air. Any ether
remaining in opened containers that has not been consumed/used after 2-3 days, should be disposed in
the appropriate manner.

Section 7: Spill and Accident Procedures
Indicate how spills or accidental releases will be handled and by whom. Consider the size of the spill that
can be safely cleaned up by the laboratory personnel. List the location of appropriate emergency
equipment (spill kit, eye washes, showers, and fire equipment). Any special requirements for protecting
personnel from exposure should be identified here.

Ventilate area of accident or spill. Wear appropriate personal protective equipment per
individual MSDSs. Keep unnecessary and unprotected personnel from entering. Contain and
recover liquid when possible. Neutralize with alkaline material (soda ash, lime) then absorb with
an inert material (vermiculite, dry sand, earth) and place in a chemical waste container. Do not
use combustible materials, such as sawdust. DO NOT FLUSH DOWN DRAINS. Report to
Safety and Risk Management any spill your lab feels is beyond their capacity to contain.
Call 874-2618, if no answer call URI Police 874-2121.

First Aid Measures: Call 874-2121 if exposure warrants medical treatment

Inhalation: Remove to fresh air.

Ingestion: Give large quantities of water. Ethyl ether: Do not induce vomiting. Methyl Alcohol:
Induce vomiting.

Skin Contact: Immediately flush skin with plenty of water for at least 15 minutes while removing
contaminated clothing and shoes.

Eye Contact: Immediately flush eyes with a gentle but large stream of water for at least 15
minutes, lifting lower and upper eyelids occasionally.

SRM: Revised 05/01/13                                      2
 Department of Safety and Risk Management Laboratory Safety Program Tel: 874-2618, Fax: 789-5126

Section 8: Decontamination Procedures
Specify decontamination procedures to be used for equipment, glassware, and clothing: including
equipment such as glove boxes, hoods, lab benches, and controlled (special “designated area”) areas
within the lab.

Wash contaminated clothing before re-use. Absorb with an inert material (vermiculite, dry sand,
earth) and place in a chemical waste container. Do not use combustible materials, such as saw

Section 9: Waste Disposal Procedures
Waste must be disposed in accordance with the URI Laboratory Waste Guidebook. Note any special

While accumulating waste, place all excess liquid in an appropriate (compatible with waste)
bottle with a URI Hazardous Waste Label attached. Deface or remove all extraneous labels if
re-using a bottle. Fill out the label to the best of your ability. Put the total amount on the label
after the bottle is full. Do not date this label. The bottle is to be stored AT ALL TIMES in the
secondary waste containment pan. This pan/site is easily located in the lab with the “Hazardous
Waste Accumulation” sign designating this area as a waste containment area. You may remove
the bottle through-out the day to add more liquid, keeping the cap off for no longer that 15
minutes. You must place the bottle back in the secondary containment site after each addition
to the bottle. When the bottle is “full” or you are no longer adding liquid to the bottle, Fax a
completed Fax Request for Hazardous Waste Pick-up to Safety and Risk at 789-5126.

Review the URI Laboratory Waste Guidebook for a more in-depth guidelines of URI’s Waste
Disposal Procedures.

Section 10: Material Safety Data Sheet Locations
Indicate the location of MSDSs for each hazardous chemical used. Also, indicate the location of other
pertinent safety information, i.e. equipment manuals, chemical references, etc.

Please add to this section where you keep your records.

Section 11:Laboratory Specific Protocol(s):
Insert your laboratory protocol for specific handling and operational practices.

Please add lab specific protocols.

Section 12:
Training Record-to be completed by students or staff working in this lab

I have read this SOP and understand the procedures to be followed.
Laboratory Worker:
Print Name:____________________            Signature:_______________

Principal Investigator:
Print Name:____________________                   Signature:_______________

SRM: Revised 05/01/13                                 3

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