Metrological recording

It is also obvious that the maintenance strategy has effects on the invitation to tender for the plant In case of the inspection strategy, additional investments for metrological recording are required. Furthermore, the delivery of spare and wear parts as well as possibly of complete aggregates has to be taken into consideration. 

The BERM symposia have served further to clarify understanding of the basic attributes of a good reference standard that is indispensable for establishing new frontiers in the science of measurements, and to highlight the invaluable infrastructure and proven record of metrological excellence available at the National Measurement Institutes to accomplish such tasks. 

Traceable equipment, e.g. balances, thermometers, glassware, timepieces, pipettes, etc. are appropriately calibrated, and the corresponding certificates or other records demonstrating metrological traceability to National Standards are available. 

The test core technique has failed to find large-scale acceptance because of the unsatisfactory reproducibility of the results. The reasons for this may be due to differences in the force-velocity characteristics of the presses, as a result of which the recorded efforts and movements versus time largely reflect the properties of the equipment used rather than the properties of the material being tested. To achieve a better reproducibility of the test results the test must be carried out on equipment with calibrated metrological parameters. 

As the name implies, this is the ability to trace or accurately record the presence of an unbroken, identifiable and documented pathway from fundamental standards or standard values to the measurement system of interest. Traceability is a prerequisite for the assignment of limits of uncertainty on the output or response measurement, but it does not imply any level of quality, i.e.. the magnitude of the uncertainty limits. Physical standards with certified values as well as calibration services are available from national standardization laboratories such as National Institute of Standards and Technology or NIST (formerly NBS) in the USA or from the corresponding national metrology laboratories for all developed countries. All of these standards are usually expressed in the SI units system. 

Together with the physical aspects of recording data accurately and repeatedly, metrology requires the verification and validation of the data collected by the test equipment and may also include its enforcement. Enforcement is a critical aspect not only for consumer goods— baby carriages, helmets, and the like—but also for industrial equipment such as vessel design (pressure vessels), materials of construction (quality of steel), and safety procedures. 

The MAAT is the mean of all monthly average air temperatures. Its determination requires air (ambient) temperature data recorded over long periods, available at any central metrological office. 

---