TS 1517
System of Units (SI)-Quantities and Units of Ught and Related Elektromagnetic Radiations
This standard includes the symbols definitions and conversion factors of quantities and units of light and related elektromağnetic relations of the system of units (SI).
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- Language: English
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About This Item
TS 1517 is a standard for naming, defining, and giving conversion factors for the quantities and units used in light and related electromagnetic radiation within the SI system. Its technical purpose is to keep photometric and radiation-related quantities expressed consistently so that physical measurements can be compared without ambiguity across documents, instruments, and disciplines.
Quantities used for light and electromagnetic radiation
In this subject area, photometric quantities describe the visible-light effect on human vision, while radiometric quantities describe electromagnetic radiation in physical terms. In practice, concepts such as luminous flux, illuminance, luminous intensity, brightness-related measures, and energy- or power-based radiation quantities must be distinguished carefully. Standardizing the terms and symbols helps technical communication remain precise and avoids confusion between perceptual and purely physical measurements.
What this standard covers
- Symbols for SI quantities used in light and related electromagnetic radiation
- Definitions of those quantities
- Designations of the related units
- Conversion factors between units
The document was published as equivalent to ISO 31-6:1992 and later withdrawn. It is therefore useful as a historical reference for SI terminology and unit notation in this field, especially when interpreting older technical documents or archived measurement references.
- Publication Date: 27.04.1994
- Standard Status: H (İptal Edilmiş Standard/Withdrawn standard)
- Publisher: TSE
- Document Language: tr
- ICS Classification: 01.060 Miktarlar ve Birimler
- Pages: 24
- Source Standard: ISO 31-6:1992
- International Equivalents: ISO 31-6 (1992)--; ISO 31-6:1992 EQV--
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