Hydrogen Fluoride (HF) Monitoring Articles

  • Circadian variation of cardiac autonomic nervous profile is affected in Japanese ambulance men with a working system of 24-h shifts

    Object: The purpose of this study was to compare the stress levels of Japanese ambulance men between on-duty and off-duty days, by using the physiological indices of heart rate variability (HRV) and cortisol in urine, measured over each 24-h period. Methods: Measurements were made during one on-duty and one off-duty day for each subject. The participants were monitored for 24 h with a Holter ...

    By Springer

  • Complete HF Monitoring Solutions for Primary Aluminum Smelters

    Aluminium smelting generates large amounts of hydrogen fluoride gas (HF). Worker safety and ambient air quality concerns require that HF be monitored at several locations in smelters. Historically, a variety of methods have been used for HF monitoring. Cassette samplers and wet chemistry techniques, coupled with complex and expensive sampling manifolds have monitored roof-line and scrubber duct ...

    By Boreal Laser Inc.

  • Continuous Long Path Gaseous HF Monitoring in a Potroom Roof Vent

    ABSTRACT Various continuous long path HF monitors were operated in a potline roof ridge ventilator at the Tomago Aluminium Smelter. The reliability, consistency and usefulness of the equipment was assessed during their period of operation in the roof ridge ventilator over 520 m. A cassette sampling method developed previously was used to assess the accuracy of the monitoring equipment over a ...

    By Boreal Laser Inc.

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