A Hazardous Waste is any material that is subject to the EPA's Hazardous Waste Manifest specified in 40CFR262.
A Hazardous Substance - is any material listed as having Reportable Quantities Pursuant to Section 311 of the Clean Water Act (40CFR117.3)
A Hazardous Material is any material or object that meets the any of the definitions of Hazard Classes in 49 CFR or that is listed in the Hazardous Materials Table at 49CFR172.101
A toxic chemical is one that can poison you. It os one kind of hazardous chemical. Other kinds include:
No.
All hazardous wastes and hazardous substances are hazardous materials, but not all hazardous materials are hazardous wastes or hazardous substances.
In the US regulations of the Department of Transportation, a Hazardous Substance is a material specifically listed by name in a particular part of the regulations. A Hazardous Waste is something meeting the EPA definition of that term. A hazardous material is one that has been determined by the Secretary of Transportation to present a potential risk to life or property in the course of transportation.
Yes, a hazardous waste is always a hazardous material, but a hazardous material is not always a hazardous waste.
hazardous means it's dangerous
When receiving a shipment of hazardous materials, the first thing to do is to determine the nature of the hazardous material and then inspect it to ensure there are no leaks.
You use COSSH (control of substances hazardous to health) in a lab to prevent your body from being harm by toxic, biological hazardous and possibly radioactive substances: first thing you should do is assess the lab environment lalalalalalalalalalal ouidhvohwovh
The first line of defense against hazardous materials is engineering controls to keep the hazardous material from getting where people are.
An automobile is a non-living thing that produces wastes in the form of exhaust.
Materials that living organisms can't use are excreted from the body as wastes. Elimination or excretion methods vary from species to species; humans and many other animals get rid of wastes mainly through urination and defecation.
Excretion
because they can prevent you from mixing every thing up
recycle nutrients from dead organisms or their wastes
There is no such thing as a Class 3.1, or a Division 3.1 in the DOT scheme of classifying hazardous materials. The International Maritime Dangerous Goods Code used to use a Division 3.1 for the most flammable of flammable liquids, but that was removed from the code more than 10 years ago. At present, hazardous materials may be described simply as "Class 3" if they meet the definition of flammable liquids.
When they say "hazardous commodity" they're usually talking about hazardous materials in bulk. The first thing that comes to my mind is carbon monoxide in a tube trailer. Most people think, "carbon monoxide? Why would you want THAT?" Carbon monoxide has a lot of uses in the chemical industry, and it's a good fuel...so there's a lot of carbon monoxide going down the roads in trailers. The problem with it is, it's highly flammable and very toxic to boot. It is therefore a Hazardous Material, and in trade it is a Hazardous Commodity. OTOH, if you were to put carbon monoxide in cylinders and put the cylinders in a truck, it becomes a hazardous packaged good.
They must get rid of the wastes they produce. This is called excretion.
Most of the substances used in most laboratory experiments can be safely poured down a drain. However, laboratory experiments sometimes involve corrosive substances which would damage the plumbing if poured down the drain; they can also involve chemicals which, if they were to be mixed together as they are poured into the same drain, would undergo chemical reactions that might cause an explosion or a fire. And it is also possible that you are conducting experiments on highly toxic materials that would become an environmental hazard if poured down the drain. So not everything goes down the drain. You have to understand the nature of the substances that you are dealing with. Some thing go to a hazardous waste center instead, or can be neutralized in your own laboratory before you dispose of them.