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The Biohazard Symbol with dimensions. All parts of the biohazard sign can be drawn with a compass and straightedge. The basic outline of the symbol is a plain trefoil, which is three circles overlapping each other equally like in a triple Venn diagram with the overlapping parts erased.
Alternative sign. Division 2.2 Toxic gases – Gases which: are known to be so toxic or corrosive to humans as to pose a hazard to health; or; are presumed to be toxic or corrosive to humans because they have an LC 50 value equal to or less than 5000 ml/m 3 (ppm). e.g. hydrogen cyanide. Division 2.3
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ISO 7010 is an International Organization for Standardization technical standard for graphical hazard symbols on hazard and safety signs, including those indicating emergency exits.
Biomedical waste is not limited to medical instruments; it includes medicine, waste stored in red biohazard bags, and materials used for patient care, such as cotton and bandaids. The most serious effect that biomedical waste has on our seas is the discharge of poisons into the waters that could then be consumed by ocean life creatures.
The biohazard symbol was developed in 1966 by Charles Baldwin, an environmental-health engineer working for the Dow Chemical Company on their containment products. [1] It is used in the labeling of biological materials that carry a significant health risk, including viral samples and used hypodermic needles .
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The basic outline of the symbol is a plain trefoil, which is three circles overlapping each other equally like in a triple venn diagram with the overlapping parts erased. Reason This image is illistrative and infomrative, and enhances the encyclopdia by adding an element to Biohazard-related articles that can not be replaced by words alone.