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The sign is not to be confused with the fallout shelter identification sign introduced by the Office of Civil Defense in 1961. This was originally intended to be the same as the radiation hazard symbol but was changed to a slightly different symbol because shelters are a place of safety, not of hazard.
The international biohazard warning symbol as it appears in the Laboratory biosafety manual (Third edition) by the World Health Organization, Geneva 2004. Note that the sickles have blunt ends, not sharp ones. (Unlike most versions on the web) Blunt probably because sharp forms tend to print lousy images when stenciled.
The following other wikis use this file: Usage on ar.wikipedia.org نفايات طبية; Usage on bg.wikipedia.org Етиология; Usage on bn.wikipedia.org
Description: The symbol for biohazard substances (without the black-yellow triangle.) Source: old version of Image:Biohazard symbol.svg; Author: Silsor; Other versions: Date: 29 April 2006 (original upload date) Source: No machine-readable source provided. Own work assumed (based on copyright claims). Author: No machine-readable author provided.
The following 87 pages use this file: 2019 Kuala Koh measles outbreak; Biological hazard; Biological warfare; Biomedical waste; Bipartisan Commission on Biodefense
ISO 3864-1:2011 Part 1: Design principles for safety signs and safety markings [1] ISO 3864-2:2016 Part 2: Design principles for product safety labels [2] ISO 3864-3:2012 Part 3: Design principles for graphical symbols for use in safety signs [3] ISO 3864-4:2011 Part 4: Colorimetric and photometric properties of safety sign materials [4]
A yellow on black or white-coloured background is used behind a black biohazard symbol when integrated with a CAUTION sign, label or paragraph. A green on white or white-coloured background is used behind a black biohazard symbol when integrated with a NOTICE sign, label or paragraph. DANGER is used to identify a biohazard that will cause death.
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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