Guide in Progress
ASTM, CE & UL: Comparing Common Marks
What these marks are, where they are commonly referenced, and what they do — and don't — certify. A plain-English orientation for buyers, not a substitute for qualified compliance advice.
Planned coverage
- ASTM: technical standards frequently referenced in US-market purchase specifications.
- CE: the conformity marking for regulated products in the European Economic Area — where it applies and how it is applied.
- UL: product safety certification widely referenced in North America for electrical and fire-safety-related products.
- What documentation to request: certificates, test reports, and how to check that they are genuine and in scope.
- Common confusion: standards vs. marks, certification vs. self-declaration, and factory claims that need extra scrutiny.
In progress. This guide is under research. Every statement about the scope, legal basis, or application of any mark will be verified against primary sources and dated before publication. No clauses, grades, or application details are stated here yet. verified content coming soon.