Problems in choosing methods and tools for conformity assessment of prepackages at the manufacturer

2013 Joint IMEKO (International Measurement Confederation) TC1-TC7-TC13 Symposium: Measurement Across Physical and Behavioural Sciences

Dobiliene, J.^1 ; Meskuotiene, A.^1 ; Raudiene, E.^1

Metrology Institute of Kaunas, University of Technology, Studentu str. 50-454, Kaunas, Lithuania^1

关键词: Calibration and verification;    Conformity assessment;    Level of automations;    Measuring instruments;    Optimal packing;    Packaging lines;    Packing manufacturers;    Systematic analysis;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/459/1/012046/pdf
DOI  :  10.1088/1742-6596/459/1/012046

来源: IOP

【 摘 要 】

In the article is a systematic analysis of the prepackaged products conformity assessment that could help in practice by applying the general provisions of the Directives to conformity assessment of prepackaged products. Manufacturers have to choose the method of conformity assessment that best suits the needs of his/her firm by choosing the optimal packing structure, methods and tools, based on the recommendations of the Article. Procedures for the maintenance of measuring instruments (calibration and verification) depend on the composition of packing line, level of automation. They shall be chosen only after the accurate identification of packaging line. When choosing the measuring instruments for packing manufacturers must provide traceability capabilities of measuring instruments used in weighing process, properly using calibration and verification results of the measuring instruments. Measurement results have demonstrated that for evaluation of average mass of prepackages procedures, mentioned below, can be applied. Statistical analysis procedure is more accurate than random sample procedure. It was proved that accuracy (repeatability and systematic error) of measurement results for sticky products is more than 2 times bigger than for powdery products (especially for low mass). Manufacturer shall pay attention to this fact while adjusting packing line for sticky products.