DIN 4844-1 2012-06 PDF

Full title and description

DIN 4844-1:2012-06 — Graphical symbols — Safety colours and safety signs — Part 1: Observation distances and colorimetric and photometric requirements. (German title: "Graphische Symbole — Sicherheitsfarben und Sicherheitszeichen — Teil 1: Erkennungsweiten und farb- und photometrische Anforderungen"). This part of DIN 4844 specifies the colourimetric and photometric requirements and observation-distance criteria for illuminated and internally illuminated safety signs used for accident prevention, fire protection, health-hazard protection and emergency evacuation in workplaces and public areas.

Abstract

DIN 4844-1:2012-06 defines how safety colours and safety signs must perform optically so they can be reliably seen and recognised at specified observation distances. The standard sets requirements for luminance, illuminance, contrast and colourimetry for illuminated and internally illuminated signs, and clarifies how these requirements relate to the design and deployment of safety signage in conjunction with DIN ISO 3864-1 and ISO 3864-4. It replaces the earlier 2005 edition and concentrates on photometric and colourimetric criteria while referencing other standards for symbol design and colour ranges.

General information

• Status: Current (active edition published June 2012)
• Publication date: 1 June 2012
• Publisher: Deutsches Institut für Normung (DIN)
• ICS / categories: 01.070, 01.080.01
• Edition / version: 2012-06 (DIN 4844-1:2012-06)
• Number of pages: 10

Scope

This standard applies to the photometric and colourimetric performance of safety signs and safety colours, with particular focus on illuminated and internally illuminated signs used in workplaces and public areas. It specifies observation-distance factors, required luminance or illuminance values, colour and contrast requirements (as applicable to photometric assessment) and measurement methods. It is intended to be used in conjunction with standards that define symbol shapes and colour ranges (for example DIN ISO 3864-1 and ISO 3864-4) and does not replace detailed symbol design rules contained in those documents.

Key topics and requirements

• Observation distance criteria and distance factors for safety signs to ensure legibility from intended viewing ranges.
• Photometric requirements for illuminated and internally illuminated signs: minimum luminance or illuminance levels for safe-condition and other sign types.
• Colourimetric requirements and acceptable measurement procedures for safety and contrast colours used in illuminated signs.
• Requirements that ensure sufficient contrast and uniformity of colour regions so symbols remain distinguishable under expected lighting conditions.
• Clarification of how photometric limits interact with design principles in DIN ISO 3864-1 and the colour-range specifications referenced in ISO 3864-4.
• Measurement and test-method references for assessing luminance, illuminance and colourimetric properties.

Typical use and users

Used by safety managers, sign manufacturers, facility and building designers, architects, occupational health and safety professionals, emergency-planning teams and regulators. The standard guides procurement, specification, testing and installation of illuminated safety signage to ensure visibility and compliance with workplace and public-safety requirements.

Related standards

DIN ISO 3864-1 (design principles for safety signs), ISO 3864-4 (colourimetric and photometric characteristics and requirements), DIN 4844 series (other parts covering additional sign types and conventions), ISO 7010 (graphical symbols — safety signs) and national/regional regulations on workplace safety signage.

Keywords

safety colours; safety signs; illuminated signs; photometric requirements; colorimetric requirements; observation distance; graphical symbols; DIN 4844; ISO 3864.

FAQ

Q: What is this standard?

A: DIN 4844-1:2012-06 is the DIN standard that sets observation-distance, colourimetric and photometric requirements for safety colours and illuminated safety signs.

Q: What does it cover?

A: It covers how brightly and consistently safety signs must be illuminated, the required luminance/illuminance and contrast properties, and the observation-distance factors that determine sign sizing and placement for reliable recognition. It focuses on photometric and colourimetric criteria and is used alongside symbol-design standards.

Q: Who typically uses it?

A: Manufacturers of safety and illuminated signs, safety and facilities managers, architects and designers, occupational safety professionals and authorities responsible for workplace and public safety signage.

Q: Is it current or superseded?

A: The document published 1 June 2012 is the current DIN 4844-1 edition. It supersedes the 2005 edition (DIN 4844-1:2005-05). Users should check national standardisation catalogues for any later amendments or newer editions before relying on the standard for compliance decisions.

Q: Is it part of a series?

A: Yes. DIN 4844-1 is part of the DIN 4844 series on graphical symbols, safety colours and safety signs, and is intended to be used together with related parts and with international standards such as ISO 3864 (parts 1 and 4) and ISO 7010.

Q: What are the key keywords?

A: safety colours; safety signs; illuminated signs; photometry; colorimetry; observation distance; graphical symbols; DIN 4844; ISO 3864.