Similar International Standards
EN 17037:2018CEN (European Committee for Standardization), Europe
HighCurrent
Daylight in buildings
Provides methods to evaluate and ensure adequate daylight provision, view, sunlight exposure, and glare protection in buildings.
BS 8206-2:2008BSI (British Standards Institution), UK
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Lighting for buildings - Part 2: Code of practice for daylighting
Offered recommendations for the daylighting of buildings, forming the direct predecessor to the current European standard.
ISO 8995-1:2002 / CIE S 008/E:2001ISO (International Organization for Standardization) / CIE (International Commission on Illumination), International
MediumCurrent
Lighting of work places - Part 1: Indoor
Specifies lighting requirements for indoor work places, including illuminance values, which daylighting practice aims to meet.
IES LM-83-12IES (Illuminating Engineering Society), North America
MediumCurrent
Approved Method: IES Spatial Daylight Autonomy (sDA) and Annual Sunlight Exposure (ASE)
Defines the methodology for modern climate-based daylight modeling, contrasting with the static methods in IS 6060.
Key Differences
≠IS 6060 exclusively uses the static 'Daylight Factor' (DF) metric, which assumes a standard overcast sky. Modern standards like EN 17037 prioritize dynamic, climate-based metrics like Daylight Autonomy (DA) and Spatial Daylight Autonomy (sDA), which simulate performance over an entire year.
≠Glare assessment in IS 6060 is qualitative, offering general advice to avoid direct sun. EN 17037 introduces quantitative metrics like Daylight Glare Probability (DGP) with specific target thresholds for occupant comfort.
≠Modern standards (e.g., EN 17037) have explicit requirements for 'View Out' (assessing the quality of the view to the exterior) and 'Sunlight Exposure' (ensuring a certain duration of sunlight in spaces). These concepts are not formalized in IS 6060.
≠The Indian standard is based on manual calculation methods like nomograms and protractors (e.g., BRS Protractors). International equivalents are written with the assumption that designers will use advanced computer simulation software (e.g., Radiance, DAYSIM) for analysis.
≠Recommended illuminance levels for similar tasks are generally lower in the 1971 Indian standard compared to current international workplace lighting standards like ISO 8995-1.
Key Similarities
≈The fundamental objective of providing adequate natural light for visual tasks, occupant well-being, and energy saving is common to both IS 6060 and modern international standards.
≈Both IS 6060 and international standards (like the simplified method in EN 17037) recognize the Daylight Factor (DF) as a valid, albeit basic, metric for daylight assessment, especially in early design stages.
≈The physical principles are identical. The concept of daylight at a point being a sum of the Sky Component (SC), Externally Reflected Component (ERC), and Internally Reflected Component (IRC) is foundational to both the manual methods of IS 6060 and the physics engines of modern software.
≈All standards acknowledge that building geometry (window size/position, room dimensions), glazing properties (transmittance), and surface reflectances are the primary factors influencing interior daylight levels.