ISO 9847 explained
ISO 9847, Solar energy — Calibration of field pyranometers by comparison to a reference pyranometer, is an ISO standard for the calibration of pyranometers.[1]
References
- Web site: ISO 9847:1992 - Solar energy -- Calibration of field pyranometers by comparison to a reference pyranometer. www.iso.org. en. 2018-07-04.