SHE Code 3 Safe Use of Cryogenic Materials

Who should use this presentation & read the code Managers of staff, visiting scientists;

STFC Safety, Health and Environment (SHE) Group SHE Code 3: “Safe Use of Cryogenic

Why a Safe Use of Cryogens Code? • Many STFC research facilities use cryogenic

Key points • Risk Assessment for use of cryogenic materials, including oxygen depletion calculations,

Key points • Appropriate clothing and PPE is worn. • Risk Assessments must consider

SHE Training The training detailed in the code: - Cryogenic Safety Course Can be

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SHE Code 3: Safe Use of Cryogenic Materials Safety, Health and Environment (SHE) Group

Who should use this presentation & read the code Managers of staff, visiting scientists; STFC site tenants, and those responsible for contractors on STFC sites who may use or be exposed to: a) cryogenic materials; or b) work in areas where cryogens are used.

STFC Safety, Health and Environment (SHE) Group SHE Code 3: “Safe Use of Cryogenic Materials”

Why a Safe Use of Cryogens Code? • Many STFC research facilities use cryogenic materials for cooling equipment or samples. • Cryogenic materials can result in cold contact burns, asphyxiation, explosion from pressure build up, embrittlement of materials etc. • Use of cryogenic materials has resulted in fatalities through asphyxiation at a number of UK establishments. • The use of cryogens can expose people not directly involved in their use to serious risk.

Key points • Risk Assessment for use of cryogenic materials, including oxygen depletion calculations, must be carried out prior to their use. • If identified by the Risk Assessment, adequate oxygen depletion monitoring systems should be in place prior to first use, and thereafter regularly maintained and serviced. • Safe methods of work are developed and training given for the cryogens used.

Key points • Appropriate clothing and PPE is worn. • Risk Assessments must consider action in the event of an unintended release. • Adequate ventilation to areas containing cryogenic materials should be ensured. • Ensure that there are suitable control measures in place if there is a potential for any lone working with cryogenic materials. • This code does not address the design of containers for liquefied gases or transfer lines and pipework.

SHE Training The training detailed in the code: - Cryogenic Safety Course Can be booked by calling your local SHE training contacts: DL/RAL 8288; UKATC 8325. This training will need to be supplemented by 1: 1 practical instruction, from a competent person, of the equipment to be used. For help or advice with this code contact your local SHE Group