This International Standard specifies letter codes for designation of colours and provides rules for their combination to designate colour combinations. The letter codes are intended to be applied in the technical documentation of industrial installations, equipment and products, and in markings of equipment and products.
This basic safety publication is primarily intended for use by technical committees in the preparation of standards in accordance with the principles laid down in IEC Guide 104 and ISO/IEC Guide 51.
It is not intended for use by manufacturers or certification bodies. One of the responsibilities of a technical committee is, wherever applicable, to make use of basic safety publications in the preparation of its publications. The requirements of this basic safety publication will not apply unless specifically referred to or included in the relevant publications.
This International Standard does not specify any requirements for the encoding of colour properties, nor for their visual representation. Such requirements are under the responsibility of the different technical committees.

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IEC 60757:2021 specifies letter codes for designation of colours and provides rules for their combination to designate colour combinations. The letter codes are intended to be applied in the technical documentation of electrical installations, electrical equipment and products, and in markings of electrical equipment and products.
This basic safety publication focusing on safety essential requirements is primarily intended for use by technical committees in the preparation of safety publications in accordance with the principles laid down in IEC Guide 104 and ISO/IEC Guide 51.
It is not intended for use by manufacturers or certification bodies. One of the responsibilities of a technical committee is, wherever applicable, to make use of basic safety publications in the preparation of its publications. The requirements of this basic safety publication will not apply unless specifically referred to or included in the relevant publications.
This document does not specify any requirements for the encoding of colour properties, nor for their visual representation. Such requirements are under the responsibility of the different technical committees.
IEC 60757:2021 cancels and replaces the first edition published in 1983. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) codes restricted to letter codes;
b) removed old unnecessary notes;
c) added a new subclause on alternating colours of the same item;
d) added Annex A with examples of colours and their corresponding RGB (red, green, blue) encoding.

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This document establishes the technical specifications for compression springs made from rectangular wires. The parameters set in this document are applicable to springs which are set. This document does not attempt to specify the quality of the springs themselves, nor all of their dimensions (e.g. cross-section), their material or their length of life. The springs are classified into spring rates: light, medium, strong and extra strong. For each spring rate, this document gives a colour code.

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This document specifies the system of colour coding for flow rate identification of nozzles used on sprayers. It is applicable to hydraulic energy nozzles such as flat and cone nozzles used for the application of crop protection products. This document is not applicable to adjustable nozzles. It allows for flow recognition on small parts in order to avoid any confusion under normal conditions of use.

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This document specifies marking codes for fixed inductors.
The colour code specified in Clause 3 gives a colour coding for fixed inductors. It is intended for
use with the values of the E3 to E24 series as specified in IEC 60063.
The code specified in Clause 4 gives a system for marking inductance values by means of digits
and letters.
The code specified in Clause 5 gives a system for marking the tolerance on inductance values by
means of letters.
The code specified in Clause 6 gives a system for marking of date codes on fixed inductors by
means of letters and digits.

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To define colours and identification of cables and wires used in DC distribution systems and installations. To define marking of cables, wires, connectors, any associated equipment for DC power distribution. To consider AC conductors colours and marking of AC circuits to avoid any confusion and status of the art on colour definition for DC cable in ICT equipment. DC includes up to 400VDC EN 300 132-3-1 or ITU-T L.1200 interface, as well as -48VDC EN 300 132-2 interface. It considers the different number of cables including the functional earthing arrangement.

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ISO 3864-2:2016 establishes additional principles to ISO 3864‑1 for the design of safety labels for products, i.e. any items manufactured and offered for sale in the normal course of commerce, including but not limited to consumer products and industrial equipment. The purpose of a product safety label is to alert persons to a specific hazard and to identify how the hazard can be avoided. ISO 3864-2:2016 is applicable to all products in all industries where safety-related questions can be posed. However, it is not applicable to safety labels used - for chemicals, - for the transport of dangerous substances and preparations and - in those sectors subject to legal regulations which differ from certain provisions of this document. The design principles incorporated in this document are intended to be used by all ISO Technical Committees and anyone designing product safety labels in the development of product safety label standards for their industries or services.

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This lnternational Standard establishes a colour code for the identification of single-use hypodermic
needles of designated metric sizein the range of 0,18 mm (34 Gauge) to 3,4 mm (10 Gauge) . It applies
to regular-walled, thin-walled, extra-thin-walled and ultra-thin walled needles, and to opaque and
translucent colours.
This International Standard is not applicable to pen-needles.

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ISO 6009:2016 establishes a colour code for the identification of single-use hypodermic needles of designated metric sizein the range of 0,18 mm (34 Gauge) to 3,4 mm (10 Gauge) . It applies to regular-walled, thin-walled, extra-thin-walled and ultra-thin walled needles, and to opaque and translucent colours. It is not applicable to pen-needles.

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ISO 22324:2015 provides guidelines for the use of colour codes to inform people at risk as well as first response personnel about danger and to express the severity of a situation. It is applicable to all types of hazard in any location. This International Standard does not cover the method for displaying colour codes, detailed ergonomic considerations related with viewing displays, or safety signs covered by ISO 3864‑1.

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This part of ISO 22028 specifies a family of scene-referred extended colour gamut RGB colour image encodings designated as reference input medium metric RGB (RIMM RGB). Digital images encoded using RIMM RGB can be manipulated, stored, transmitted, displayed or printed by digital still picture imaging systems. Three precision levels are defined using 8-, 12- and 16-bits/channel. An extended luminance dynamic range version of RIMM RGB is also defined, designated as extended reference input medium metric RGB (ERIMM RGB). Two precision levels of ERIMM RGB are defined using 12- and 16-bits/channel. FP-RIMM RGB, a floating point version of RIMM RGB, defines the expression method of RIMM RGB in a floating point figure. Three precision levels of FP-RIMM RGB are defined using 16-, 32- and 64-bits/channel.

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This Technical Specification defines an extended colour-gamut output-referred RGB colour image encoding designated as European Colour Initiative RGB [eciRGB (2008)]. Digital images encoded using eciRGB (2008) can be manipulated, stored, transmitted, displayed, or printed by digital still picture imaging systems. Two precision levels are defined, using 8 bits/channel and 16 bits/channel.

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This part of ISO 22028 defines a family of extended colour-gamut output-referred RGB colour image encodings designated as reference output medium metric RGB (ROMM RGB). Digital images encoded using ROMM RGB can be manipulated, stored, transmitted, displayed, or printed by digital still picture imaging systems. Three precision levels are defined using 8-, 12- and 16-bits/channel.

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This part of ISO 17321 specifies colour stimuli, metrology, and test procedures for the colour characterization of a digital still camera (DSC) to be used for photography and graphic technology. Two methods are provided, one using narrow spectral band illumination and the other using a spectrally and colorimetrically calibrated target. Except for a specific set of permitted data operations, these DSC data are raw. This part of ISO 17321 does not specify the methods for deriving transformations from raw DSC data in order to estimate scene colorimetry.

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This European Standard specifies a colour coding system for the secondary method of identification of the contents of gas cylinders for industrial gases, breathing gas application and gases for medical use with particular reference to the properties of the gas or gas mixture. This European Standard does not apply to cylinders containing liquefied petroleum gas (LPG), to refrigerant gases, to portable fire extinguishers or stationary cylinder extinguishing. Bundle colour coding is not addressed by this or other standards.

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This European Standard specifies a colour coding system for the secondary method of identification of the contents of gas cylinders for industrial gases, breathing gas application and gases for medical use with particular reference to the properties of the gas or gas mixture.
This European Standard does not apply to cylinders containing liquefied petroleum gas (LPG), to refrigerant gases, to portable fire extinguishers or stationary cylinder extinguishing. Cylinder bundles are not covered in this document, for bundle identification see ISO 10961.
NOTE   LPG includes substances carried under the UN number 1965 "Hydrocarbon gas mixture, liquefied, N.O.S."

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This part of ISO 15076 specifies a colour profile format and describes the architecture within which it can operate. This architecture supports the exchange of information which specifies the intended colour image processing of digital data. The required reference colour spaces and the data structures (tags) are also specified.

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ISO 14726:2008 specifies main colours and additional colours for identifying piping systems in accordance with the content or function on board ships and marine structures. These colours can also be used for piping systems on drawings and diagrams. ISO 14726:2008 does not apply to piping systems for medical gases, industrial gases and cargo. ISO 14726:2008 can also be used for land installations.

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This document specifies letter codes for designation of colours and provides rules for their combination to designate colour combinations. The letter codes are intended to be applied in the technical documentation of electrical installations, electrical equipment and products, and in markings of electrical equipment and products. This basic safety publication focusing on safety essential requirements is primarily intended for use by technical committees in the preparation of safety publications in accordance with the principles laid down in IEC Guide 104 and ISO/IEC Guide 51. It is not intended for use by manufacturers or certification bodies. One of the responsibilities of a technical committee is, wherever applicable, to make use of basic safety publications in the preparation of its publications. The requirements of this basic safety publication will not apply unless specifically referred to or included in the relevant publications. This document does not specify any requirements for the encoding of colour properties, nor for their visual representation. Such requirements are under the responsibility of the different technical committees.

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ISO 32:2005 specifies a colour coding system for the secondary method of identification of the contents of industrial and medical gas cylinders with particular reference to the property of the gas or gas mixture. Cylinder labels are the primary method of indicating cylinder contents. ISO 32:2005 does not apply to cylinders containing liquefied petroleum gases (LPG) or to fire extinguishers.

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This International Standard specifies marking codes for fixed inductors. The colour code specified in Clause 3 gives a colour coding for fixed inductors. It is intended for use with the values of the E 3 to E 24 series as specified in IEC 60063. The code specified in Clause 4 gives a system for marking inductance values by means of digits and letters. The code specified in Clause 5 gives a system for marking the tolerance on inductance values by means of letters. The code specified in Clause 6 gives a system for marking of date codes on fixed inductors by means of letters and digits.

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ISO 8843:2005 establishes a system for identifying crimp-removable contacts for electrical connectors. The system specified in this International Standard consists of two colour bands around the external diameter of the crimp barrel and, for thermocouple or high-temperature contacts, of additional letters or of a colour point; the system, however, does not preclude further means being used to identify additional parameters, such as cable size and material. This contact identification system applies, when specified, to ISO standard contacts. The use of the system is recommended for contacts of both the preferred and non-preferred types. In contacts of the preferred type, the contact active portion and the wire gauge accepted by the contact barrel have the same size. In contacts of the non-preferred type, the size of the active portion of the contact differs from the wire gauge accepted by the crimp barrel.

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This document specifies the designation, colour code and grit sizes for dental diamant rotary instruments which are used commonly in the dental surgery. It applies to all types of dental diamond rotary instruments independent of type and shape. Attention is drawn to ISO 6360 which spezifies a number coding system for the identification of dental rotary instruments of all types.

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ISO 7711-3:2004 specifies the designation, colour code and grit sizes for diamond rotary instruments which are used commonly in a dental surgery. It applies to all types of dental diamond rotary instruments independent of type and shape.
NOTE Attention is drawn to ISO 6360 which specifies a number coding system for the identification of dental rotary instruments of all types.

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EN following parallel vote

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Applies to the text of descriptions, drawings, markings, etc., in the electrotechnical field and lays down a letter code for the designation of some distinct colour. Has the status of a basic safety publication in accordance with IEC Guide 104.

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This European standard specifies colour codes and nomenclature for liquids, gases and vacuum and the application of these codes and nomenclature on or in the vicinity of laboratory service controls.
This European Standard does not apply to medical or healthcare facilities using medical gases from a medical supply system conforming to EN 737.

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This European standard specifies colour codes and nomenclature for liquids, gases and vacuum and the application of these codes and nomenclature on or in the vicinity of laboratory service controls.
This European Standard does not apply to medical or healthcare facilities using medical gases from a medical supply system conforming to EN 737.

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Establishes general rules for assigning particular meanings to certain visual, acoustsic and tactile indications. Has the status of a basic safety publication in accordance with IEC Guide 104.

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Supersedes HD 3 S2:1976

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Establishes general rules for assigning particular meanings to certain visual, acoustsic and tactile indications. It has the status of a Basic Safety Publication in accordance with IEC Guide 104.

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Applies to thermoplastic insulation for low-frequency cables and wires. Gives the standard colours to be used.

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A system of color coding is specified for one-mark pipettes for identification of nominal capacities, and for graduated pipettes for identification of nominal capacities and unit of subdivision. The color code bands for the different capacities are tabled and the method of marking is specified. Suitable requirements and test methods for the durability of the colours are intended to be considered at a later date.

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Specifies the way in which single-core, multi-core and coaxial cables used in the wiring of aircraft are to be marked as to type, size, origin, date etc. in order to facilitate servicing, the investigation of faults and replacement. Also specifies the approved methods for the marking of cores. Supplements those standards relating to marking that already exist. Allows for the codification of manufacturer's identities by individual countries.

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Applies to the text of descriptions, drawings, markings, etc., in the electrotechnical field and lays down a letter code for the designation of some distinct colour. Has the status of a basic safety publication in accordance with IEC Guide 104.

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Helps to permit identification of pilot crafts in heavy weather, in order to improve the efficiency of pilot service and the safety of navigation. Is applicable to pilot craft used in closed waters, estuaries and open road-steads to bring and take off pilot to merchant ships. The applicability of the requirements to pilot craft navigating under a navy flag is determined by the competent authorities of the relevant country.

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Cancels and replaces ISO recommendation R 32-1957, and its amendment 1-1966. Establishes a system of marking and a series of colours for the identification of the content of gas cylinders. In the case of gas mixtures, the cylinder shall bear the appropriate colours for the gases comprising the mixture, such colours to be visible from the valve end.

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A system of color coding is specified for one-mark pipettes for identification of nominal capacities, and for graduated pipettes for identification of nominal capacities and unit of subdivision. The color code bands for the different capacities are tabled and the method of marking is specified. Suitable requirements and test methods for the durability of the colours are intended to be considered at a later date.

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This European Standard specifies a way to identify the various fractions of municipal waste by a set of visual elements, including colors, symbols, text, etc.
This standard is intended to create a unique operative model to easily identify the waste from visual elements thereby facilitating collection and recycling services for both consumers and collectors.

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This European Standard specifies a way to identify the various fractions of municipal waste by a set of visual elements, including colours, symbols, text.
This European Standard is intended to create a unique operative model to easily identify the waste containers through visual elements thereby facilitating collection and recycling/recovery services for both consumers and management companies.

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This International Standard specifies the system of colour coding for identification of all types of hydraulic
spray nozzles, such as flat and cone nozzles used for the application of crop protection products in agriculture.
This International Standard is not applicable to nozzles where there is more than one component influencing
flow rate. It might not be applicable to liquid fertilizer applications.
It allows for flow recognition on small parts in order to avoid any confusion under normal conditions of use.

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Possible French A-Deviation

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2015-12-09: Programme Manager to be contacted after closure of the enquiry in view of skipping Formal Vote.

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MINOR REVISION   -    MINOR REVISION    -   MINOR REVISION

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2013-04-11 GVN: WI created for 3-month UAP

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2013-04-11 GVN: WI created for 3-month UAP

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