Editorial Policy

Last updated: October 2026

Section data

Values marked “Source:” match the named manufacturer table. Other values are flagged “Not yet verified.” The source status appears with the section data so readers can check the original table before use.

Calculators and articles

Formulas and examples are indicative. Check inputs, assumptions, results, and the current applicable standard before engineering or procurement use.

Corrections

If you find an error, report it through Contact. Include the page, value, and source reference where possible.