EN 12464-1 defines the reference illuminance level (Em) according to the area/task type: Office 500 lx, corridor 100 lx, precision assembly 750 lx, color control 1000 lx. The measured average illumination should meet this reference.

Measured illuminance (lx) ≥ reference Em (lx)
Example calculation: Genel ofis referansı 500 lüks; ölçülen 420 lüks → referansın %16 altında, yetersiz (aydınlatma iyileştirmesi değerlendirilmeli).

Lighting Compliance (EN 12464-1)

Select the area/task type; view the EN 12464-1 reference illuminance level (Em). Optionally, enter and compare the measured lux.

Suggested Em (reference)
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Measured
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Notes: Values according to EN 12464-1. Typical reference preserved illuminance levels (Em); The current edition of the standard and the task vary. This tool only compares average illumination levels; uniformity (Uo), glare (UGR), and color rendering (Ra) It is also evaluated. Accredited lighting measurement. Occupational health and safety environmental measurements This is done in collaboration with a partner laboratory.
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How is it calculated?

  1. Select the field/task type.
  2. (Optional) Enter the light level (lux) you are measuring.
  3. Press Evaluate; the reference EM and suitability will be displayed.

Frequently Asked Questions

How many lux of lighting should there be in the office?
According to EN 12464-1, the reference temperature for general office use (reading, writing, computer use) is 500 lux.
What does lighting measurement include?
In addition to average illuminance, uniformity (Uo), glare (UGR), and color rendering (Ra) are also evaluated.
Who performs the lighting measurements?
Accredited lighting measurements are carried out with a partner laboratory accredited according to ISO/IEC 17025 standards.

Related tools and services

This tool and its content are for general informational purposes only; they do not constitute a binding inspection/declaration of conformity. Definitive results will be determined through on-site inspection in accordance with relevant legislation and standards. Get a quote →