Tarkistusjakeen

Tarkistusjakeen is the genitive form of tarkistusjake, a term used in Finnish technical language to describe a concept in quality control and material testing. The word combines tarkistus, meaning verification or check, and jake, meaning a fraction or size category, particularly in contexts such as sieve analysis or grading of materials. A tarkistusjake is generally a standard or reference fraction used to validate a measurement method, instrument, or process.

In practice, tarkistusjakeen refers to the specific fraction or its properties chosen for verification within a testing procedure. The concept is context-dependent and its exact definition can vary between industries and standards. Typical uses include confirming the accuracy of sieve systems and particle-size distributions in construction materials, calibrating screening equipment, and supporting method validation in laboratories.

Applications often involve selecting an appropriate tarkistusjake according to relevant standards, performing measurements or separations against the reference fraction, and comparing the results to established reference values. Deviations are documented and investigated, with adjustments made to equipment, procedures, or calibration to maintain consistency and traceability.

The term is most commonly encountered in Finnish-language technical documentation, standards, and quality-control practices. While the underlying idea—using a known reference fraction to verify process accuracy—is widely applicable, the exact role of tarkistusjakeen varies by field, making it important to consult specific industry standards for precise definitions and procedures. See also tarkistus, jake, standard reference material, quality control, sieve analysis.