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It's a measure of how toxic a substance is. LD50 stands for lethal dose 50--it's the amount that, when given to a group of laboratory rats, will kill 50% of them. Often expressed in milligrams per kilogram of body weight (since it usually takes more poison to kill a bigger animal).
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What is meant by ratting of fuse?
A fuse is given a various rating (strength). For instance, a home appliance (washing machine, etc) would usually have a fuse with a 13 amp rating. While a low powered lamp would only merit a 2 or 5 amp fuse rating. It is important to use a fuse of the correct rating in amps for each electrical appliance.
What kind of hazard does poisonous describe?
Poisonous describes the deleterious effect of a chemical upon a living system. Poisonous chemicals are quantified in their effect by the quantity required to kill 50% of a given organism by body mass (Median Lethal Dose or LD50). US DOT defines poisonous as a material having an LD50 oral, rat of 200 mg/Kg or less.
What is ten time more deadly than cyanide?
10 doses of cyanide !!!!Potassium cyanide: LD50, Oral Rat = 6 mg/kg.Phorate: LD50, Oral Duck = 0.6 mg/kg (ten times deadlier for ducks than KCN is for rats.)
What is a BIA rating?
Business Impact Analysis (Rating)
Trailer axle rating is 45000 pounds how many tons can they haul?
a ton is 2000 pounds so divide 45000/2000 so 22.5 tons
Why is the LD50 of a mouse different from a human's LD50?
ld50 for lamotrigine
What is the ld50 of thiopental?
thipental
What does LD50 measure?
LD50 (short for lethal dose 50) is the dose of a substance at which it kills 50% of test subjects.
Why do cockroaches survive a nuclear bomb?
The radiation LD50 of most insects is far higher than the LD50 of mammals.
Why does Magnesium Sulfate not have an LD50?
that's not true, in fact magnesium sulfate has been tested on rats and dogs, and it does have an ld50. "The LD50 values were 206 mg/kg for males and 174 mg/kg for females"
What is the formula used in calculation of ld50 of a substance?
LD50 ('50%-Lethality' dose) is a meaured value from many statical investigations. So there's only a good definition on how it should be 'measured' and can not be calculated from other values by formula.
What is the LD50 standard?
1mg/kg
What is ld50 of calcium?
30000000 ng
What is the LD50 value for plutonium?
A probable value for plutonium is LD50 = 5 μg/kg (cumulated chemical and radiological effects).
What is the LD50 of sarin?
In toxicology, the median lethal dose, of a toxin is the dose required to kill half the members of a tested population after a specified test duration. LD50 figures are frequently used as a general indicator of a substance's acute toxicity.
True or False. Does a chemical with a LD50 of 1000mg over kg have less toxicity than one with LD50 of 100mg over kg?
true,however LD50 just provide coarse idea and specific adverse effect also need be considered.
10 rats given LD50 dose of aspirin how many rats survive?
by definition ld50 is when 50% survive or dead,,answer will be 5 if i count well
