Radiation standards History

Updated from American (USA) radiation standards Introduction It was recognized soon after discovery of x-rays that exposure to large amounts of ionizing radiation can produce deleterious effects on the human…

Noise and Vibration Prevention Responsibilities

Updeted from ILO standards (prevention of noise and vibration) Introduction Noise is intense, disturbing and unpleasant sound. Excessive noise can cause hearing impairment. Noise that contains sudden, powerful impact sounds,…