Exact identity
Match CAS, EC and Index numbers where applicable.
Scope of the entry
Check substance form, notes and covered hazards.
Harmonised classes
Use only the hazards harmonised by the entry.
Other evidence
Assess non-harmonised endpoints using relevant data.
Record the source
Store the entry, version and date checked.
Status example
A notification shown near an Annex VI entry does not automatically become harmonised classification.
Checklist
Identity matched
Entry scope read
Notes reviewed
Statuses separated
Date recorded
Common mistakes
×treating every ECHA value as harmonised
×ignoring notes
×matching only by name
×not recording the version
Frequently asked questions
Does harmonisation cover every endpoint?
Not necessarily.
Is the substance name alone enough to match an entry?
No. Identifiers and scope must be checked.
Does a general answer validate a specific product?
No. The actual composition, form, supplier data and intended use must be assessed.
Who should approve the result?
A competent person should review the data, method and internal consistency before supply.
Primary sources
Check the current consolidated version and the exact substance or product scope before use.