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The biohazard symbol was developed in 1966 by Charles Baldwin, an environmental-health engineer working for the Dow Chemical Company on their containment products. [ 17 ] According to Baldwin, who was assigned by Dow to its development: "We wanted something that was memorable but meaningless, so we could educate people as to what it means."
The standard was published in October 2003, splitting off from ISO 3864:1984, which set out design standards and colors of safety signage and merging ISO 6309:1987, Fire protection - Safety signs to create a unique and distinct standard for safety symbols. [2] [3]
Hazard pictograms form part of the international Globally Harmonized System of Classification and Labelling of Chemicals (GHS). Two sets of pictograms are included within the GHS: one for the labelling of containers and for workplace hazard warnings, and a second for use during the transport of dangerous goods.
In the 1980s, American National Standards Institute formed a committee to update the Z53 [b] and Z35 standards. In 1991, ANSI Z535 was introduced, which was intended to modernize signage through increased use of symbols, the introduction of a new header, 'Warning' and requiring that wording not just state the hazard, but also the possible harm the hazard could inflict and how to avoid the ...
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Date/Time Thumbnail Dimensions User Comment; current: 15:23, 30 October 2020: 1,147 × 1,344 (1,015 KB): Repeater-reclaim: Fixed words. Modified Yellow to #ffe100 for more separation, still within yellow tolerance.
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