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Do the pyranometers come with a calibration certificate, NIST traceable?

April 26, 2017calibration Certificate NIST pyranometers traceable

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Do the pyranometers come with a calibration certificate, NIST traceable?

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NIST in the USA supplies calibration services to industry – in case of light they characterise sensors, detectors and lamps for use in manufacturing and for luminance measurement (LUX). They are not set up for the calibration of sensors for solar radiation and they are not a traceable reference. The only accepted world standards for the calibration of radiometers for the measurement of global or direct broadband solar radiation are as below: • ISO 9059 Calibration of Field Pyrheliometers by Comparison to a Reference Pyrheliometer • ISO 9060 Specification and Classification of Instruments for Measuring Hemispherical Solar and Direct Solar Radiation • ISO 9846 Calibration of a Pyranometer Using a Pyrheliometer Guide to Meteorological Instruments and Methods of Observation, Fifth ed., WMO-No.