Methodology

How pages are built and reviewed.

SafetySymbols.org is designed as a controlled reference library. The goal is not to publish the most pages, but to publish pages that stay internally consistent and auditable.

Source Hierarchy

The preferred source order is: official standards text, standards-registered artwork or recognized reference artwork, legally binding hazard communication sources, then site-level explanatory guidance. Where the site provides interpretation, that text is kept distinct from the standard identifier itself.

Artwork Sourcing and Verification

Symbol artwork is served from full-resolution vector (SVG) reference files hosted on Wikimedia Commons, which maintains the recognized public reference set for ISO 7010 safety signs and GHS hazard pictograms. No artwork on this site is redrawn or approximated by hand. Every cached file is resolved against the Commons file registry at import time, and each symbol is visually reviewed against its standard code and official title before publication. Each symbol page links to its source file and states the artwork license.

Record Requirements

Each symbol record must include a stable slug, visible code, standards family, source artwork, meaning, color reference, viewing-distance guidance, industrial use cases, review date, and related records. Build-time validation blocks publication if required fields or cached assets are missing.

Quality Checks

Before release, the site validates schema consistency, category-to-slug alignment, required metadata, related-link integrity, and static-build integrity. The site also performs smoke checks against the built output to verify that core pages, metadata, sitemap, robots, and 404 handling are present.

Scope Limits

This site is a reference aid, not a substitute for buying and reading the governing standards, site-specific risk assessment, SDS review, code adoption review, or authority having jurisdiction requirements. Facilities remain responsible for choosing the correct symbol, size, placement, and enforcement context.