Work

Consumer/producer risks for decentered NAWI’s manufacturing processes

Year: 2025

Type: article

Abstract: This paper investigates the impact of utilizing the C pm (real capability) index, as opposed to the C p (potential capability) index, on the evaluation of conformity assessment risks in legal requirements for weighing instruments, specifically Non-Automatic Weighing Instruments (NAWI). The focus is on controls such as type approval, initial and subsequent verifications, and in-service-inspections, with implications for producers and consumers. Two cases are presented to assess non-conformity risks: Case 1 assumes a normal distribution in the production process, revealing significantly higher risks in decentred manufacturing processes, especially when considering complete calibration information. Case 2 involves the random selection of NAWIs and evaluating global risks. The study underscores the significance of incorporating measurement uncertainty and guard bands in conformity assessments, arguing that relying solely on the MPE requirement with centred process information can yield misleading probability estimations. Ultimately, the paper contributes to understanding conformity assessment risks in weighing instruments, stressing the importance of C pm and measurement uncertainty for accurate probability estimation.

Source: Measurement Sensors

DOI: 10.1016/j.measen.2025.101831

Authors: Francisco-Javier Martínez-Velázquez, José-Antonio Báez-Macías, José-Yahir Sánchez-Martínez, Omar-Jair Purata-Sifuentes

Institution: Universidad de Guanajuato

Language: English

Topic: Scientific Measurement and Uncertainty Evaluation

Subfield: Statistics, Probability and Uncertainty

Field: Decision Sciences

Domain: Social Sciences

Open Access status: gold

Estimated APC paid: $1,910

Funder: Universidad de Guanajuato