Tarkastusmerkinnät

Tarkastusmerkinnät, literally translated as inspection marks, are standardized symbols and notations used primarily in engineering, construction, and safety inspection contexts within Finland and some neighbouring countries. The marks serve as a concise communication tool to indicate compliance status, identification of reference points, and to flag potential hazards or required actions. They are especially common in building plans, civil engineering drawings, and maintenance records for infrastructure such as bridges, roads, and public buildings.

These marks are regulated by national standards, most notably the Finnish standard SFS 2337 and the European standards EN 13537 and EN 14173. The symbols include check marks to indicate full compliance, question marks for items requiring further verification, and special icons to identify safety-critical points like load-bearing structures or fire exits. They are typically embedded directly onto drawings or on dedicated inspection sheets that accompany the project documentation throughout the construction lifecycle.

Tarkastusmerkinnät facilitate effective communication among architects, engineers, contractors, and regulatory authorities. They reduce the risk of misinterpretation by providing a common visual language. In addition to construction, the marks are utilised in periodic maintenance audits, in the inspection of industrial facilities, and in the field of environmental compliance where quick visual identification of regulatory adherence is needed. By standardising inspection information, tarkastusmerkinnät help ensure safety, compliance, and efficient project tracking within the Finnish infrastructure sector.