This is an sop template and is not complete until: 1 lab specific information is entered into the box below 2 lab specific protocol/procedure is added to the protocol/procedure section and 3 sop has been signed and dated by the pi and relevant lab

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Standard Operating Procedure

MS-222 (Tricaine Methane Sulphonate)

This is an SOP template and is not complete until: 1) lab specific information is entered into the box below 2) lab specific protocol/procedure is added to the protocol/procedure section and
3) SOP has been signed and dated by the PI and relevant lab personnel.

Print a copy and insert into your Lab-Specific Chemical Hygiene Plan.

Section 1 – Lab-Specific Information


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Date SOP was written:

Date SOP was approved by PI/lab supervisor:

Principal Investigator:

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Internal Lab Safety Coordinator/Lab Manager:

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Lab Phone:

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Office Phone:

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Emergency Contact:

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(Name and Phone Number)

Location(s) covered by this SOP:

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(Building/Room Number)

Section 2 – Type of SOP:

☒ Process ☐Hazardous Chemical ☐ Hazardous Class

Section 3 – Physical / Chemical Properties

Physical / Chemical Properties:

CAS#: 886-86-2

GHS Classification: N/A

Molecular Formula: C10H15NO5S

Form (physical state): Crystalline powder

Color: White

Boiling Point: N/A

Flash Point: N/A

Lower Explosive Limit: N/A

Upper Explosive Limit: N/A

Section 4 – Potential Hazards

Tricaine Methane Sulfonate may be irritating by inhalation, ingestion or absorption.

Exposure Limits:

OSHA PEL (8 HR. TWA): Not established

OSHA Short Term Exposure Limit: Not established

ACGIH TLV/TWA: Not established

Section 5 – Personal Protective Equipment (PPE)

Respirator Protection:

Respirators should be used only under any of the following circumstances:

  • As a last line of defense (i.e., after engineering and administrative controls have been exhausted).

  • When Permissible Exposure Limit (PEL) has exceeded or when there is a possibility that PEL will be exceeded.

  • Regulations require the use of a respirator.

  • An employer requires the use of a respirator.

  • There is potential for harmful exposure due to an atmospheric contaminant (in the absence of PEL)

  • As PPE in the event of a chemical spill clean-up process

  • Lab personnel intending to use/wear a respirator mask must be trained and fit-tested. This is a regulatory requirement. Contact EH&S 8-8411 regarding respirator clearance.

Hand Protection:

Protective gloves: chemical resistant rubber or neoprene.

NOTE: Consult with your preferred glove manufacturer to ensure that the gloves you plan on using are compatible with Tricaine Methane Sulfonate.

Refer to glove selection chart from the links below:



Eye Protection:

ANSI approved chemical safety goggles.

Skin and Body Protection:

Lab coats (100% cotton) must be worn and be appropriately sized for the individual and buttoned to their full length.. Laboratory coat sleeves must be of sufficient length to prevent skin exposure while wearing gloves. Personnel must also wear full length pants, or equivalent, and close-toed shoes. Full length pants and close-toed shoes must be worn at all times by all individuals that are occupying the laboratory area. The area of skin between the shoe and ankle must not be exposed.

Hygiene Measures:

Wash thoroughly and immediately after handling. Remove any contaminated clothing and wash before reuse.

Section 6 – Engineering Controls

Use of Tricaine Methane Sulfonate requires general mechanical ventilation.

Section 7 – First Aid Procedures

If inhaled:

Move into the fresh air, I f not breathing give artificial respiration. If breathing is difficult, give oxygen. Seek medical attention.

In case of skin contact:

Remove contaminated clothing, wash affected area with soap and water. If irritation occurs, seek medical attention. Launder clothing before reuse.

In case of eye contact:

Check for and remove any contact lenses. Rinse thoroughly with plenty of water for at least 15 minutes. Seek medical attention.

If swallowed:

Wash out month with water provided person is conscious. Consult a physician.

Section 8 – Special Handling and Storage Requirements

  • Avoid contact with skin, eyes and clothing

  • Avoid breathing dust.

  • Keep containers tightly closed.

  • Wash thoroughly after handling.

  • Store in a cool, dry, and dark place as material if photosensitive.

Section 9 – Spill and Accident Procedures

Chemical Spill Dial 8-1911

Immediately evacuate area and ensure others are aware of the spill. If there is an imminent threat of a fire, pull the nearest fire alarm station to evacuate the building and dial 8-1911. If the spill is minor and does not pose a threat to personnel, contact EH&S at 8-8411 during normal business hours (7:30 AM – 4:30 PM) for spill cleanup assistance (dial 8-1911 if spill occurs after hours and assistance is needed).

Chemical Spill on Body or Clothes:

Remove clothing and rinse body thoroughly in emergency shower for at least 15 minutes.  Seek medical attention; dial 8-1911.

Chemical Splash into Eyes:

Immediately rinse eyes and inner surface of eyelid with water from the emergency eyewash station for 15 minutes by forcibly holding the eye open. Seek medical attention; dial 8-1911.

Section 10 – Medical Emergency

Life Threatening Emergency, After Hours, Weekends And Holidays:

Dial 8-1911

Non-Life Threatening Emergency:

Immediately report injury to supervisor and complete the First Report of Injury.

Section 11 – Waste Disposal Procedures

Label Waste:

Make sure the waste container(s) is properly labeled; label should indicate all of the contents of the container. EH&S provides hazardous waste labels free of charge, contact to obtain labels.

Store Waste:

Store hazardous waste in closed containers, and in a designated area (flammable cabinet is recommended).

Dispose of Waste:

Complete a Chemical Waste Pickup Request Form to arrange for disposal by EH&S. Contact or visit the EH&S webpage for questions.

Section 12 – Safety Data Sheet (SDS)

A current copy of the SDS for Tricaine Methane Sulfonate must be made available to all personnel working in the laboratory at all times. To obtain a copy of the SDS, refer to Marquette’s MSDS library or contact the chemical manufacturer. Many manufacturers’ SDSs can be found online on websites such as Sigma-Aldrich ( or Siri MSDS Index (

Section 13 – Protocol/Procedure (Add lab specific Protocol/Procedure here)

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NOTE: Any deviation from this SOP requires approval from PI.

Section 14 – Documentation of Training (signature of all users is required)

  • Prior to conducting any work with Tricaine Methane Sulfonate, designated personnel must provide training to his/her laboratory personnel specific to the hazards involved in working with this substance, work area decontamination, and emergency procedures.

  • The Principal Investigator must provide his/her laboratory personnel with a copy of this SOP and a copy of the SDS provided by the manufacturer.

  • The Principal Investigator must ensure that his/her laboratory personnel have attended appropriate laboratory safety training or refresher training within the last one year.

I have read and understand the content of this SOP:




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MS-222 Tricaine Methane Sulfonate Date:

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