SI units Archives

Measuring mass is confusing on 2019 World Metrology Day from the change to the kilogram SI unit.

Happy World Metrology Day: A Change to SI Units

May 20, 2019September 9, 2021Randy Long, Senior Manager of Accreditation

Effective on this World Metrology Day (May 20, 2019), the International System of Units is now based on a set of definitions each linked to […]

Twisting measuring tape representing the metric system (SI units), which are reflected in standards by an M.

The “M” in Standards

March 12, 2018April 5, 2023Brad Kelechava

Regardless of industry, each standard has a unique designation, each component of which conveys its background. In these designations, numbers (and some letters) represent the […]