Sources and research approach

Good comparisons start with sources that can actually verify a claim.

Depending on the topic, our research may consult manufacturer manuals and specification sheets, recognized standards organizations, government consumer or safety agencies, academic or institutional references, and current vendor documentation.

Source hierarchy

1. Exact product manual or specification for product-specific claims.
2. Government or standards-body material for safety, labeling and regulatory concepts.
3. Institutional or academic references for technical background.
4. Reputable secondary sources for context when primary material is not available.

Because this is an international publication, a rule or label in one country may not apply elsewhere. Readers should verify local requirements before relying on a regulatory statement.