Top Sell
-
NAS 412 Rev. 2
Original price was: $99.00.$59.00Current price is: $59.00.
-
JIS K 6386:2019
Original price was: $20.00.$11.00Current price is: $11.00.
-
NAS 4003 Rev. 13
Original price was: $69.00.$41.00Current price is: $41.00.
-
AASHTO Green Book (GDHS-7)
Original price was: $310.00.$186.00Current price is: $186.00.
-
CGA P-18
Original price was: $59.00.$35.00Current price is: $35.00.
CIE 231:2019
Original price was: $179.00.$107.00Current price is: $107.00.
CIE Classification System of Illuminance and Luminance Meters
standard by Commission Internationale de L'Eclairage, 05/01/2019
The properties of illuminance meters and luminance meters are characterized by a number of selected quality indices defined in ISO/CIE 19476:2014 “Characterization of the Performance of Illuminance Meters and Luminance Meters”, previously published as CIE S 023:2013. CIE 231:2019 summarizes existing national and regional classification systems of illuminance meters and luminance meters and recommends a CIE classification system. Like existing systems, the proposed CIE classification system is based on limit values for the different indices; but differently to all existing systems, the uncertainty of the determination of the quality indices is explicitly considered in the classification. In the annex some application-related requirements are recommended that should be considered where appropriate. The CIE classification system attributes a class to each quality index from 4* down to 1*, where 4* is the best quality. The lowest class of all quality indices specifies the class of the instrument. It is the first internationally agreed classification system for photometric measurement devices.
Product Details
- Published:
- 05/01/2019
- ISBN(s):
- 9783902842213
- Number of Pages:
- 42
- File Size:
- 1 file , 2.2 MB
