Source: Schema.org v30.1 vocabulary. Official substanceOfConcern property definition.
What does substanceOfConcern mean?
A substance of concern (SoC) contained within the product, typically based on regulatory lists like REACH or RoHS.
Used on types (domainIncludes)
Expected value types (rangeIncludes)
Schema.org domainIncludes and rangeIncludes are descriptive guidance, not strict validation prohibitions. Check the official reference for updates.
Related reference
Browse all Schema.org types and properties · Google feature support status