Risk Assessment Form No LN2 16

School/Dept:

Medical School Stores Date of Date of Last Responsible Person

Assessment: September 2018 Assessment: August 2016 Name: Chris Coleman

Section: Liquid Nitrogen

LN2 Storage Area

Name of Date of Next

Assessor: Chris Coleman Assessment: September 2020 Signature:

Activity	Hazards	Existing Precautions/ Control measures	OK/ NOK	Deficiencies	Hazard Severity	Risk	Extent	Risk Severity
Dispensing of Liquid Nitrogen and filling of Dewars.	Danger of Asphyxiation, Spillages, escape of Liquid gas, Cold burns and scalds due to the extreme temperature. Collision/Falling Other operations	Assessed by Safety Office (Andrew Deakin) that sufficient natural ventilation exists through the tank being located outside (protected by a mesh cage). Maintain awareness and exercise caution when filling if vehicles are parked at the dock: vapour may drift into the cargo area of enclosed vehicles. Personnel correctly trained and competent in use of LN2 dispensing equipment. Key for the nitrogen cage held by MSS and only issued to authorised users. Use of correct P.P.E as provided including cold store gloves with a knitted wrist, full-face visor, lab coat, non-absorbent apron, long trousers to enclose the opening of the shoe, and closed and appropriate footwear (not open-toed, e.g. sandals). Please note that risk assessments for the moving of dewars will require the wearing of safety shoes. Use of correct P.P.E as provided including cold store gloves with knitted wrist, full-face visor, lab coat, non-absorbent apron, long trousers that enclose the shoe opening and wearing of closed and appropriate footwear (not open toed eg sandals) Ensuring that the gates are properly stayed by placing the drop bolts the holes provided. If personnel are already in the area collecting or delivering gas cylinders, filling must wait until the area is clear.	OK OK OK OK OK OK		3 3 3 3 2 2	2 2 2 1 1 1	1 1 1 1 2 2	6 6 6 3 4 4