A new standard for photometry and illumination symbols

Under the joint sponsorship of The American Association for the Advancement of Science, The American Society of Civil Engineers, the American Society of Mechanical Engineers, the Institute, and the Society for the Promotion of Engineering Education, a new standard in modification of the American Standard for Illuminating Engineering Nomenclature and Photometric Standards has just been adopted by the American Standards Association. A national standard for navigational and topographical symbols has also been approved as American Tentative Standard by the American Standards Association.