The Toxic Substance Control Act (TSCA) covers all chemical substances, regardless of what they are used for. The Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA) covers only substances used for those purposes. For example, FIFRA might cover a particular insecticide product, but it would not cover the precursor ingredients. Those would be covered by TSCA.
federal insecticide fungicide rodenticide act
Comparision of mhoperlogical And biological species concept
A variable!
gaining words by comparision
Good Laboratory Practices Standards: http://www.epa.gov/compliance/monitoring/programs/fifra/glp.html
ratio
in copputer science
Degree of comparision: Safe Safer Safest
Literature value?
That is sometimes called a ratio.
comparision of p.b and p.b
There just is no way these can be compared.