About this document

I-Unit Flatness Measurement Guide by Thomas Enters is a document available to read on EtoBox.

This document introduces I-Units as a quantitative measurement for flatness that considers both the height and span of waves in a material. The I-Unit chart provides a standard for determining acceptable flatness levels based on the peak-to-peak interval and height of any off-flat conditions. Materials with 5 I-Units or less are considered stretcher level flat, while 20 I-Units or less are flatness critical and 42 I-Units or less are commercially flat according to the chart. Leveltek uses I-Units as their s

Author

Thomas Enters

Language

EN