T71e increased importance ojtime andfrequency mmolog~ in scientific and indushial applications has raised a request of a wider speckurn of services from the national standad laboratories. On the metrological side, a new generaion offrequency standards and the worldwide availabilitJ of eatrenelg accurate time dissemination sgstems bave opened new perspecfives of research and applications. The IE...

The Sistema Interamericano de Metrologia (SIM) is a regional metrology organization (RMO) whose members are the national metrology institutes (NMIs) located in the 34 nations of the Organization of American States (OAS). The SIM/OAS region extends throughout North, Central, and South America and the Caribbean Islands. About half of the SIM NMIs maintain national standards of time and frequency ...

The concept of metrological traceability of measurement results to property values assigned to measurement standards of higher metrological order or to the International System of Units (SI) through sequential calibrations, using reference materials and reference measurement procedures, plays a key role in ensuring that end user measurement procedures perform at an acceptable level in the clini...

Since 2020 a large consortium has been engaged in the project EMPIR 19ENV01 traceRadon to develop missing traceability chains improve sensor networks climate observation and radiation protection. This paper presents results areas of: Novel 226Ra standard sources with continuous controlled 222Rn emanation rate, radon chambers aimed create reference atmosphere field for flux monitoring. The major...

The determination of salinity values from SI traceable densimetry and refractometry measurement results enable traceability the former. In this work, a short study metrological compatibility determinations via these two methods for sodium chloride in ultrapure water solutions different standard seawaters (OSIL ERM) solutions, [35.0; 215.0] g kg −1 interval, is presented. It evidenced referred i...

EAU Congress, Milan. 2008. 33. Stephan C, Kahrs A, Klotzek S, Reiche J, Müller C, LeinM, et al. Toward the metrological traceability in deter-mination of prostate-specific antigen: the new AccessHybritech assays calibrated against WHO standardscompared with the traditional Access Hybritech assays.CCLM 2008; in press. 34. Stephan C, Kahrs A, Klotzek S, Reiche J, Müller C, Lei...

At the National Institute of Metrological Research (INRIM), a Hamon guarded 10×100 M network was developed to improve the traceability levels of dc resistance at 1 G level. Utilizing and revisiting this project, a Hamon 10×10 G network is developed to extend the capabilities of the Hamon scaling technique up to 100 G . The novelty of the 10× 10 G network is its improved guard system, and the im...

This paper deals with the metrological management of an acquisition system that has been developed for monitoring an experimental PhotoVoltaic (PV) plant. The acquisition system has been conceived for comparing the performance of different PV technologies and for verifying the nominal specifications of the PV modules. For these reasons, the traceability of the monitoring system has to be ensure...