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 .

2016年8月22日 · The GHS system, part of OSHA's Hazard Communication Standard (HCS), consists of nine symbols, or pictograms, providing recognition of the hazards associated with certain substances. Use of eight of the nine are mandatory in the U.S., the exception being the environmental pictogram (see below).

2024年11月20日 · The biohazard symbol is a globally recognized warning icon designed to alert people to the presence of materials that pose a risk to human health, animal welfare, or the environment.

The biohazard symbol is a thoughtfully designed symbol with four circles representing the infection chain – agent, host, source, and transmission. Agent: It refers to the type of pathogen that can cause a hazardous condition or infection.

The term "biohazard" for the purpose of this symbol is defined as "those infectious agents presenting a risk or potential risk to the well-being of man, either directly through his infection or indirectly through disruption of his environment."

2016年7月13日 · In short, the biohazard symbol is used universally to report harmful substances that are particularly dangerous for living beings. The symbol is an image that warns people of possible exposure to biological substances that may consist of viruses , toxins , or medical waste (such as blood, body fluids, and human cell lines).

The biohazard symbol is used in the labeling of biological materials that carry a significant health risk, including viral and bacteriological samples, including infected dressings and used hypodermic needles (see sharps waste).

2021年6月15日 · The biohazard symbol is normally found on substances, materials, and containers that have biohazards. These are substances that pose a potential danger or risk to human life. As an international symbol, it is used worldwide to indicate the presence of …

2022年10月14日 · The biohazard symbol is the most recognized symbol in the world — and that’s by design. We’ve seen it everywhere, but how did that come to be? Read more to learn about who designed the symbol, why, and how the biohazard symbol keeps us safe today.

2017年10月11日 · As an international symbol, it is used worldwide to indicate the presence of biohazard agent. It was developed in 1966 by Charles L. Baldwin of Dow Chemicals and Robert S. Runkle of the NIH. Baldwin, an environmental health engineer, wanted the symbol to be “memorable but meaningless” so that they may educate people as to what it means.