Radiationsymbol PDF

In 2001, the "new warning symbol project" was authorized by IAEA Member States. The objective was to create a single symbol, that would be understood worldwide by someone at any age, with nearly any level of education, or not knowing about radiation, as "Danger—Run Away—Do Not Touch!".[1] Five years of work developed 50 symbols as part of the first phase. The symbols were taken to the Vienna International School in Austria. This school's many students hail from over 80 countries, and included children not yet able to read. This enabled personnel to narrow the designs to those that gave off an intuitive message of "danger" or "bad".[1]

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In contrast, a stun gun is any electroshock weapon. This means that all TASER devices are stun guns—but not all stun guns are TASERs.

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The intended usage of the supplementary radiation warning symbol, is to warn and discourage anyone attempting to dismantle a piece of equipment containing either a IAEA Category 1, 2 or 3 sealed radiation source, which is any sealed source that can cause serious injuries or death if a person is exposed to it.[4]

In 2004, the ISO and Gallup Institute conducted further investigations to determine which of the five symbols were most effective. 1,650 individuals, in 11 countries[a] were shown the symbols by Gallup staff. These individuals crossed the spectrum: age, education background, gender, rural/urban.[1] Among things assessed by the researchers were: "What were the respondents' initial reactions to the symbols?" and "What action would they take if they saw these symbols?"[1]

TASER—in all caps—is a brand from Axon that helped popularize using electric shock weapons for self-defense. TASER's early popularity meant many people started using it as a generic term, like how dumpster became the de facto term for large trash bins.

In the aftermath of repeated incidents where the public was exposed to radiation from orphan sources, a common factor reappeared: individuals who encountered the source were unfamiliar with the trefoil radiation warning symbol, and were in some cases not familiar with the concept of radiation.[1]

The symbol consists of three elements: A trefoil on the top, representing and warning of radiation. Five lines emanate in an arc towards the bottom of the triangle. On the bottom left, there is a skull and crossbones, signifying death. On the bottom right, there is a running figure, with an arrow pointing right, away from the skull and crossbones.[4] The combined icons created a symbol that virtually uniformly conveyed a message of "Danger—Run Away—Do Not Touch!".[1] The use of three separate pictograms, contained within a larger triangular symbol was chosen for its success in inducing the desired response from viewers.[1]

It's easy to find reliable stun guns, like the Vipertek VTS-989, for less than $30, while most of TASER's consumer-grade models, like the TASER Pulse, cost $400 or more. TASERs are also more expensive to use—replacement cartridges cost about $20 to $23, depending on if you buy a 10-pack or a 2-pack. Likewise, replacement batteries cost between $10 and $25, depending on your model.

The projectile prongs on TASERs make them ubiquitous among law enforcement agencies with police TASER devices offering more range than consumer models—up to 35 feet.

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While a TASER device is just as painful as a normal stun gun, it's more effective at incapacitating muscle functions so an attacker can't move.

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All five symbols were understood to convey "caution", but only the symbol that included a skull conveyed "danger of death".[1]

Most stun guns use a rechargeable battery and don't use projectiles. You can use them as long as the battery still has some juice.

During a study in the early 2000s, it was found that only 6% of those surveyed in India, Brazil and Kenya could correctly identify the meaning of the trefoil symbol.[1] Brazil is notable for being the location of the 1987 Goiânia accident, one of the worst incidents involving a orphan source that killed four people, contaminated at least 250 others and caused the contamination of multiple locations and vehicles.

Hazardsymbols and meanings

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The symbol consists of a triangle, with a black border, and a background of Pantone red No. 187, the symbols are black, with a white outline. While yellow is specified in ISO 3864-4 for usage with warning symbols and messages, it was found that red was more effective at conveying "danger" than yellow, which was viewed as the less serious "caution".[4]

The projectile nature of a TASER renders its wires and propellant unusable after one or two shots, depending on the model. Swapping out the TASER cartridge is easy, but it gives you fewer options when deterring an attack, and spare cartridges are expensive.

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This process resulted in five symbols for further consideration. These symbols were then checked by IAEA Member States to confirm that the proposed symbols did not have any negative associations or connections to religion, culture and history.[1]

ISO 21482 is a technical standard that specifies the design and usage of a "supplemental radiation warning symbol", a warning symbol. It is intended to warn people of the dangers of radiation hazards posed by sealed sources, and encourage the viewer to get away from the source. The symbol's design was the result of a joint project between the International Atomic Energy Agency (IAEA) and International Organization for Standardization (ISO) in the early 2000s.[1]

It was an eye-opening experience. Initial interpretations of the symbols were that something bad could happen and caution was needed—but the source of that threat wasn't understood. Many thought it was a warning of AIDS, electricity, toxins or even a road hazard.

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Lost nuclear sources, or "orphan sources" have presented a hazard to the public dating from at least the early 1960s. These often originated from larger equipment being dismantled by individuals in search of metal for scrap. Even the source itself, often contained in a metal housing that can appear valuable.

On the other hand, a TASER uses projectile prongs that attach to a target further away—up to 15 feet. The two prongs spread out when a TASER gun fires, allowing them to land on different body parts. This helps the TASER send electricity across a larger area. Ironically, a TASER's shape is more like a traditional firearm than a generic stun gun is.

There are four main differences between stun guns and tasers: branding, range, reusability, and price. TASERs are branded projectile weapons, while stun guns are more affordable and require close-range contact with an attacker.

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Radiation hazardsymbol

The symbol is not intended to replace the trefoil symbol in use since the mid-1940s (ISO 361, also described in ISO 7010/W003), but rather supplement it. It is not intended for use on transport or freight containers, transport vehicles, or on doors and walls of buildings and rooms.[4][5]

The symbol is to be placed close to the source, either on its shield or a point of access. The smallest the symbol should be produced is 3.0 centimetres (1.2 in), which makes its placement on most sources difficult due to their small size.[4] The symbol is intended to be hidden from view under normal conditions, and only be revealed to a person when they start attempting to dismantle a piece of equipment, such as removing outer housing of equipment.[4]

Stun guns are close - proximity devices that require you to be next to the person attacking you. They use a painful shock to discourage further contact.

Your budget is probably the biggest factor in buying a TASER or a stun gun, but both have strengths and weaknesses. Stun guns are more affordable and easier to reuse, while a TASER helps you keep your distance from violent attackers. Check out our review of the best stun guns to find the best fit for you and learn about stun gun laws.