STANDARD COMPLIANCY ISO-CAL North America ASTM & ISO Standards Compliancy ASTM G207-11 Standard Test Method for Indoor Transfer of Calibration From Reference to Field Pyranometers ISO 9846:1993 Solar Energy – Calibration of Field Pyranometers Using a Pyrheliometer ASTM G138-12 Standard Test Method for Calibration of a Spectroradiometer Using a Standard Source of Irradiance ASTM G130-12 Standard Test Method for Calibration of Narrow and Broadband Ultraviolet Radiometers Using a Spectroradiometer ISO 9847:1992 Solar Energy – Calibration of Field Pyranometers by Comparison to a Reference Pyranometer ASTM E824-10 Standard Test Method for Transfer of Calibration From Reference to Field Radiometers ASTM E816-15 Standard Test Method for Calibration of Pyrheliometers by Comparison to Reference Pyrheliometers ASTM G167-15 Standard Test Method for Calibration of a Pyranometer Using a Pyrheliometer