This page offers you quick access to affiliated companies and trade organizations. The units of measure and conversion factors page contain useful tools for calculating conversions for standard engineering units.

ASHRAE, the American Society of Heating, Refrigerating and Air-Conditioning Engineers is organized for the sole purpose of advancing the arts and sciences of heating, ventilation, air conditioning and refrigeration for the public's benefit through research, standards writing, continuing education and publications.
Through its members, the IEEE is a leading authority in technical areas ranging from computer engineering, biomedical technology and telecommunications, to electric power, aerospace and consumer electronics, among others.
ISA fosters advancement in the theory, design, manufacture, and use of sensors, instruments, computers, and systems for measurement and control in a wide variety of applications.
ISPE is a global,not-for-profit membership organization that provides education, training, and technical publications to Life Science professionals. ISPE is committed to the advancement of the educational and technical efficiency of its members through forums for the exchange of ideas and practical experience.
MANA’s mission is, through a major emphasis on education, to aid in the development and promotion of mutually profitable relationships, ethical standards of behavior and interdependence among multi-line professional sales representatives, their principals and their joint customers.
NIOSH, The National Institute for Occupational Safety and Health is the federal agency responsible for conducting research and making recommendations for the prevention of work-related injuries and illness. Click to connect to the NOISH Pocket Guide to Chemical Hazards (NPG).
From automated teller machines and atomic clocks to mammograms and semiconductors, innumerable products and services rely in some way on technology, measurements, and standards provided by the National Institute of Standards and Technology.
Unit of Measure Conversions A dictionary of units • Units of measure and conversion factors Convert It • Measurement Conversion Calculator