Publisher: Edp Sciences
E-ISSN: 2107-6847|5|4|402-402
ISSN: 2107-6839
Source: International Journal of Metrology and Quality Engineering, Vol.5, Iss.4, 2014-12, pp. : 402-402
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Abstract
One of the main calibration services of African NMIs (National Metrology Institutes) is the measurement of tapes and rules. This is mainly regulated by legal metrology and OIML (International Organisation of Legal Metrology) specifications are therefore referenced. Specifically, OIML R-35 is the standard to which rules or line scales must conform. The accuracy of most African NMIs systems however, cannot prove conformance to this specification. This article will detail the development of a new, cost effective, line scale calibration system, which will have accuracy better than the specification prescribed. The system was locally developed and its design is based on