4-Readily detonates or explodes. The white diamond, appearing at the bottom of the label, conveys Special Hazard information.
Colors are used to further distinguish the hazards, with red referring to flammability, blue referring to health, and yellow referring to instability. Severity is indicated by a numerical rating that ranges from 0 (as the minimal hazard) to 4 (as a severe hazard).
The 4Cs stand for carat weight, color, clarity and cut. Diamonds are graded in each of these areas. Taken collectively, those grades determine a diamond's value.
What does it mean when the number 4 is written in the blue diamond on the National Fire Protection Association (NFPA) label? This chemical is extremely hazardous to health.
4-Can cause death or major injury despite medical treatment.
The red diamond, appearing at the top of the label, conveys Flammability Hazard information.
A visor card guide for state and local law enforcement officials illustrating vehicle placarding and signage for the following nine classes of hazardous materials: 1) Explosives, 2) Gases, 3) Flammable Liquid and Combustible Liquid, 4) Flammable Solid, Spontanaeously Combustible and Dangerous When Wet 5) Oxidizer and ...
It is no surprise that more and more people these days are looking for blue diamond engagement rings, as not only does blue symbolizes loyalty and trust, but it is also one of the rarest color diamonds in existence. It is also a symbol of wealth and associated with royalty.
If you're wondering what to look for in a diamond, the best place to begin is by understanding the 4 C's: cut, color, clarity, and carat. Created by the Gemological Institute of America (GIA) in the 1940s, the 4 C's act as a universal scale to describe and determine the quality of diamonds.
The system uses a color-coded diamond with four quadrants in which numbers are used in the upper three quadrants to signal the degree of health hazard (blue), flammability hazard (red), and reactivity hazard (yellow).
Sir Millard
Shortly before he lost his three-year battle with cancer, he wrote a story about a great knight who sought out the four diamonds of courage, wisdom, honesty and strength, in order to be released from the grips of an evil sorceress.
The 4 Cs – cut, color, clarity, and carat – are the widely accepted standard characteristics for a diamond that determine its quality and value.
You've probably heard about the 4Cs of a diamond, and you may even know that it stands for diamond cut, color, clarity and carat weight. Below we take a closer look into the individual 4Cs.
The skull-and-crossbones symbol, consisting of a human skull and two bones crossed together behind the skull, is today generally used as a warning of danger of death, particularly in regard to poisonous substances.
Hazard Identification
The blue, red, and yellow fields (health, flammability, and reactivity) all use a numbering scale ranging from 0 to 4. A value of zero means that the material poses essentially no hazard; a rating of four indicates extreme danger.
Hazard Class 4: Flammable Solids.
Diamond. Carbon has an electronic arrangement of 2,4. In diamond, each carbon shares electrons with four other carbon atoms - forming four single bonds. In the diagram some carbon atoms only seem to be forming two bonds (or even one bond), but that's not really the case.
Four-prong settings are solid and secure with minimal metal coverage, allowing for more natural light exposure and diamond visibility. This means more sparkle, making the gem look larger. Potential Drawbacks. Four-prong settings are less secure than six-prong settings, so the stone could become loose over time.
A VS1 is the top grade of the VS clarity bracket, thus would be a grade difficult for a trained grader to see at 10X magnification. This is significant because sometimes a diamond might be on the boundary of two grades – for example a VS2 might be on the cusp of an SI1.
Plucked From the Eye of an Idol
According to legend, this diamond, now known as the “Tavernier Diamond,” had been cursed since it previously had been plucked from the eye of a statue of a Hindu idol. After returning to Europe in 1668, Tavernier sold the diamond to King Louis XIV of France, who ordered the stone recut.
Headquartered in Sacramento, California, Blue Diamond Growers is the world's largest almond processing and marketing company. Founded in 1910, the cooperative is owned by half of the state's almond growers, who produce over 80 percent of the world's almond supply.
#4EE2EC (Blue Diamond) HTML Color Code.
There are four types of hazards: chemical, biological, ergonomic, and physical hazards. Collect and review information about hazards and potential hazards in the workplace. Conduct initial and periodic workplace assessments to identify hazards.
Hazard group 4
They are likely to spread to the community and there is usually no effective prophylaxis or treatment available. These organisms are viruses or prions, eg Marburg, Crimean / Congo haemorrhagic fever and Kyasanur forest disease, Russian spring summer encephalitis.
4: Class 4 hazards are flammable solids. There are three divisions in this class, including flammable solids, spontaneously combustible materials and substances that are dangerous when wet, or water-reactive.