ES&H Manual



6550 Appendix T2

Response to Personal Cryogen Exposure



1.0            Purpose


This appendix describes how to recognize and appropriately respond in the event of personal exposure to cryogenic material.  


2.0            Scope


The process steps for this procedure are performed in coordination with ES&H Manual Chapter 6550 Cryogenic Safety Program. 




Emergencies related to oxygen deficiency hazards are discussed in ES&H Manual Chapter 6540 Appendix T3 ODH Emergency Procedures.


Emergency response for other situations is discussed in ES&H Manual Chapter 3510 Emergency Response Activities.


3.0            Responsibilities

NOTE:           Management authority may be delegated at the discretion of the responsible manager.


3.1              Everyone at Jefferson Lab

·         Respond to personal exposures and spills per this appendix.


3.2              Supervisor/Subcontracting Officer’s Technical Representative (SOTR)/Sponsor

·         Report an actual event or near-miss to the ES&H Reporting Officer in accordance with ES&H Manual Chapter 5200 Event Investigation and Causal Analysis Process.


4.0            Process Steps


4.1              Response to Personal Exposure

Individuals involved in an incident which results in exposure to skin:


Step 1:             Remove material that is not stuck to the skin, if it can be removed easily without causing further damage. 

·         Protect your hand (and any other exposed skin.)

·         Gently remove the item from the affected area.

·         Place the contaminated material aside in an open area to allow the cryogen to evaporate.


NOTE: Avoid aggravating the injury

·         Do not rub or massage the affected body part, nor apply any medications.

·         Do not exercise frostbitten feet, hands or arms.


Step 2:             Seek Medical Attention (in accordance with ES&H Manual Chapter 6800 Appendix T2 Injuries and Illnesses Requiring First Aid or Emergency Medical Response)

·         Call Occupational Medicine at extension 7539 or 5585.

·         Page Occupational Medicine at 584-7539 or 584-5585 if there is no response

·         Call 911 if:

o   The situation seems to warrant ambulance transport.

o   It is after normal business hours (8:00 a.m. to 5:00 p.m. Monday-Friday) or a designated JLab holiday.

o   Occupational Medicine is not available.



Step 3:             Cover: the affected body part with a clean, dry dressing.


Step 4:             Warmth: Keep the exposed individual warm. 


Step 5:             Evacuate: the area if necessary.


Step 6:             Notify: your Supervisor/SOTR/Sponsor as soon as possible.


5.0            Revision Summary


Revision 1.2 – 01/17/17 – Periodic Review; updated process steps to reflect current operations

Revision 1.1 – 03/19/15 – Updated TPOC from Dana Arenius to Jonathan Creel

Revision 1.0 – 01/17/12 – Updated to reflect current laboratory operations











ES&H Division

Jonathan Creel





This document is controlled as an on line file.  It may be printed but the print copy is not a controlled document.  It is the user’s responsibility to ensure that the document is the same revision as the current on line file.  This copy was printed on 2/6/2017.