ISO 3864

ISO 3864 specifies international standards for safety symbols. These labels are graphical, to overcome language barriers.[1] The standard is split into four parts:

  • ISO 3864-1:2011 Part 1: Design principles for safety signs and safety
  • ISO 3864-2:2016 Part 2: Design principles for product safety labels
  • ISO 3864-3:2012 Part 3: Design principles for graphical symbols for use in safety signs
  • ISO 3864-4:2011 Part 4: Colorimetric and photometric properties of safety sign materials


These are the colors specified in ISO Standard 3864-4 in RAL colour standard.[2]

Meaning RAL Name RAL Number RGB Hex[3] Example of Color
Warning Signal Yellow 1003 #F9A800
Prohibition/Fire Equipment Signal Red 3001 #9B2423
Mandatory Signal Blue 5005 #005387
Safe Condition Signal Green 6032 #237F52
Backgrounds and Symbol Signal White 9003 #ECECE7
Symbol Signal Black 9004 #2B2B2C

Related Standards

The corresponding American standard is ANSI Z535, which is incompatible with the ISO standard. ANSI standard ANSI Z535.6-2006 defines an optional accompanying text in one or more languages.

ISO 3864 is extended by ISO 7010, which provides a set of symbols based on the principles and properties specified in ISO 3864.

See also

  • ISO 7010 - Standard for safety symbols used in ISO 3864.
  • ANSI Z535 - Corresponding American standard for safety signage.


  1. ^ ISO 3864-1:2011 from the ISO Catalog
  2. ^
  3. ^ "RAL Farben | RAL CLASSIC Farben". (in German). Retrieved 2016-05-22.

ANSI Z535 is an American standard that sets forth a system for presenting safety and accident prevention information. It corresponds to the international ISO 3864 standard.

Antichrist Superstar

Antichrist Superstar is the second studio album by American rock band Marilyn Manson, released on October 8, 1996 by Nothing and Interscope Records. It was recorded at Nothing Studios in New Orleans and produced by the band's eponymous vocalist along with Sean Beavan, former Skinny Puppy producer Dave Ogilvie and Trent Reznor of Nine Inch Nails. The recording of the album was marred by excessive drug use, which provoked a high level of antagonism between band members. Consequently, it was their last release to feature contributions from founding guitarist Daisy Berkowitz, who acrimoniously quit partway through recording.

A rock opera and a concept album, Antichrist Superstar was the first installment in a trilogy which included succeeding releases Mechanical Animals (1998) and Holy Wood (In the Shadow of the Valley of Death) (2000). The central storyline on the album revolved around a supernatural being who seizes all power from humanity in order to initiate an apocalyptic end event; a populist demagogue who is driven solely by resentment, misanthropy and despair, he uses his newfound position to destroy the world. The record can be seen as a social critique, utilizing this premise as a metaphor for the perceived fascist elements of conservatism in the United States.

Preceded by "The Beautiful People", whose music video received three nominations at the 1997 MTV Video Music Awards, the album was both a critical and commercial success. Lorraine Ali of Rolling Stone credited Antichrist Superstar with bringing to an end the dominance of grunge within popular music. In the years since its release, it has been heralded by numerous publications as a modern classic and essential listening. The album debuted at number three on the Billboard 200, and has sold almost 2 million copies in the United States alone. As of 2011, worldwide album sales have surpassed over 7 million copies.

The album was supported by the controversial "Dead to the World Tour", which was heavily criticized by elements of the Christian right. Nearly every North American venue the band visited was picketed by religious organizations, predominantly because of unfounded, exaggerated claims of onstage drug use, bestiality, and Satanic rituals, including animal and even human sacrifice. The band also found itself the target of congressional hearings, which attempted to implicate the group in a fan's suicide. Several previously unreleased recordings were issued on soundtracks throughout 1997, including "Apple of Sodom" and "Long Hard Road Out of Hell".

High voltage

The term high voltage usually means electrical energy at voltages high enough to inflict harm on living organisms. Equipment and conductors that carry high voltage warrant particular safety requirements and procedures. In certain industries, high voltage means voltage above a particular threshold (see below). High voltage is used in electrical power distribution, in cathode ray tubes, to generate X-rays and particle beams, to demonstrate arcing, for ignition, in photomultiplier tubes, and in high power amplifier vacuum tubes and other industrial, military and scientific applications.

ISO 7010

ISO 7010 is an International Organization for Standardization technical standard for graphical symbols on hazard and warning signs, including those indicating emergency exits and safety signs. It uses colours and principles set out in ISO 3864 for these symbols, and is intended to provide "safety information that relies as little as possible on the use of words to achieve understanding." It is distinct from the Globally Harmonized System of Classification and Labelling of Chemicals specified by the United Nations to standardise hazardous material classification and labelling.

As of July 2018, the latest version is ISO 7010:2011. This is under review to be replaced with new standard ISO/DIS 7010, which also incorporates water safety signs and beach safety flags previously specified in ISO 20712.

List of International Organization for Standardization standards, 1-4999

This is a list of published International Organization for Standardization (ISO) standards and other deliverables. For a complete and up-to-date list of all the ISO standards, see the ISO catalogue.The standards are protected by copyright and most of them must be purchased. However, about 300 of the standards produced by ISO and IEC's Joint Technical Committee 1 (JTC1) have been made freely and publicly available.

No symbol

The general prohibition sign (official name, according to ISO 7010), also known as a no symbol, no sign, circle-backslash symbol, nay, interdictory circle or universal no, is a red circle with a red diagonal line through it (running from top left to bottom right), completely enclosing a pictogram to indicate something is not permitted. The prohibition sign is sometimes seen in all-black, where color is not available.

The Unicode code point for the prohibition sign is U+20E0, Combining Enclosing Circle Backslash ( ⃠ ). It is a combining character, which means that it appears on top of the character immediately before it, so putting ♪ ⃠ ∞ ⃠ is supposed to show an eighth note inside the prohibition sign, followed by the infinity symbol inside the prohibition sign: ♪ ⃠ ∞ ⃠. It also appears in the Webdings and Wingdings 2 fonts.

There is also a prohibition sign emoji located at U+1F6AB NO ENTRY SIGN (🚫), which does not combine with anything.According to the ISO standard (and also under a UK Statutory Instrument), the red area must take up at least 35 percent of the total area of the sign within the outer circumference of the "prohibition sign". Therefore, 35 percent of everything within the outer edge of the "no symbol" must be the symbol. Additionally, for printed signs under the UK rules, the width of a "no symbol" is set at 80 percent the height of the area to which it is printed.

Warning sign

A warning sign is a type of sign which indicates a potential hazard, obstacle or condition requiring special attention. Some are traffic signs that indicate hazards on roads that may not be readily apparent to a driver.While warning traffic sign designs vary, they usually take the shape of an equilateral triangle with a white background and thick red border. In the People's Republic of China (except for Macau and Hong Kong), they appear with a black border and a yellow background. In Sweden, Serbia, Bosnia and Herzegovina, Greece, Finland, Iceland, the Republic of Macedonia and Poland, they have a red border with an amber background. The polar bear warning sign in Svalbard recently changed from displaying a black bear on white background to a white bear on black background (both signs are triangular with a red border). Some countries (like France, Norway and Spain) that normally use a white background have adopted an orange or amber background for road work or construction signs.

Warning signs in some countries have a diamond shape in place of the standard triangular shape. In the United States, Canada, Mexico, Thailand, Australia, Japan, Indonesia, Malaysia, New Zealand, most of South America, and also Ireland (diverging from the standards of the rest of Europe) use warning signs are black on a yellow background and usually diamond-shaped, while temporary signs (which are typically construction signs) are black on an orange background. Some other countries also use these standards for some signage.

The warning signs usually contain a symbol. In Europe they are based on the UNECE Vienna Convention on Road Signs and Signals. In the United States they are based on the MUTCD standard and often contain text only.

ISO standards by standard number

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