LABCRUX GUIDE

How to catch unit prefix errors

A prefix is part of a quantity transformation; compare both the power of ten and the numeric value whenever a unit changes.

Write prefixes as exponents

Translate kilo, milli, micro, and nano into powers of ten before comparing values. This makes scale changes visible.

Check both sides of a conversion

If the unit becomes 1,000 times smaller, the displayed number becomes 1,000 times larger for the same quantity. Changing only one side is a red flag.

Watch case and typography

M, m, and µ are not interchangeable. OCR, spreadsheet exports, and font substitutions can turn micro symbols into plain letters.

Trace back to raw data

When two sections differ by a power of ten, do not normalize the prose first. Identify the original measurement and reconstruct the conversion.

Sources and boundaries

  1. [1]

    BIPM SI Brochure

  2. [2]

    NIST Guide for the Use of the SI

Solice develops LabCrux. The independent sources above do not sponsor or endorse the product. This page explains a review method; your experimental evidence, course instructions, and instructor remain authoritative.