BS 7440:1991
Current
The latest, up-to-date edition.
Method for calibrating field pyrheliometers by comparison to a reference pyrheliometer
Hardcopy , PDF
English
05-31-1991
Committees responsible
National foreword
Method
1 Scope
2 Normative reference
3 Definitions
4 Calibration hierarchy of pyrheliometers
5 Calibration requirements
6 Calibration procedure
7 Uncertainty
8 Documentation
Annexes
A Calculated percentages of circumsolar radiation
contained in direct solar radiation
B Bibliography
Table
A.1 Circumsolar radiation values for various
atmospheric conditions
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