s4watr:Hardness — Hardness

IRI: https://saref.etsi.org/saref4watr/Hardness
Is defined by: https://saref.etsi.org/saref4watr/v1.1.1/
https://saref.etsi.org/saref4watr/v2.1.1/
Is referenced by: https://saref.etsi.org/saref4watr/v1.1.1/
https://saref.etsi.org/saref4watr/v2.1.1/
License

Definition in SAREF4WATR v2.1.1 ontology document

s4watr:Hardness — Hardness

canonical IRI: https://saref.etsi.org/saref4watr/v2.1.1/Hardness
label: Hardness
definition: Property of the water indicating its hardness.

Definition as a Named Individual

belongs to: s4watr:AcceptabilityProperty

Definition in SAREF4WATR v1.1.1 ontology document

s4watr:Hardness — Hardness

canonical IRI: https://saref.etsi.org/saref4watr/v1.1.1/Hardness
label: Hardness
definition: Property of the water indicating its hardness.

Definition as a Named Individual

belongs to: s4watr:AcceptabilityProperty

SAREF is a European Norm! 2024-10

ETSI EN 303 760 provides guidance for developing IoT smart applications and products that are interoperable at the semantic level using the SAREF framework. It details how to apply SAREF, outlines a methodology to demonstrate compliance, and describes optional steps for contributing to a new SAREF extension.

ETSI EN 303 760: "SmartM2M; SAREF Guidelines for IoT Semantic Interoperability; Develop, apply and evolve Smart Applications ontologies".

New SAREF Website Launched! 2025-09

The SAREF website has been fully redesigned with a modern look, improved ontology browsing, and site-wide term-based search to enhance navigation and usability.

StandICT.eu 2026 grant: "Improving the ETSI TC SmartM2M SAREF publication framework and workflow"