The primary source for the most current version of ISO 10816-7:2009 .

: Unlike other parts of the ISO 10816 series, Part 7 specifies limits for both horizontal and vertical pumps regardless of their support flexibility (rigid vs. flexible). Pump Categorization

As of 2026, the 2009 version remains current. However, ISO 20816 series is gradually replacing 10816. For pumps, ISO 20816-7 is under development but not yet published.

The standard classifies vibration severity into four colored zones, which help in deciding the necessary maintenance action:

: The root-mean-square ( r.m.s. ) vibration velocity in mm/s .

Here are some options to access the standard: