Mercury (element) and galinstan alloy thermometers are also an option. Mercury thermometers are still occasionally used in the medical field because they are more accurate than alcohol thermometers, though both are commonly being replaced by electronic thermometers and less commonly by galinstan thermometers. Mercury thermometers are still widely used for certain scientific applications because of their greater accuracy and working range. Historically, one of the largest releases was from the Colex plant, a lithium-isotope separation plant at Oak Ridge, Tennessee. The plant operated in the 1950s and 1960s. Records are incomplete and unclear, but government commissions have estimated that some two million
International Institute of Risk & Safety Management qualifications. In addition, companies or other organizations may be corporate members. Alongside other Health and Safety bodies, IIRSM assisted with the Occupational Safety & Health Consultants Register (OSHCR). IIRSM represents UK health and safety professionals present in over 70 countries. Corporate membership is also available. Applicants following a recognised course of study in preparation for qualifications in health, safety or risk management. Applicants in full-time education or the Armed Forces, who are considering a career in Safety Management. Applicants who are involved in accident prevention and occupational health and safety but who do not qualify for a designated grade of