HFO-1234yf has been tested and found compatible with automotive air conditioning systems as a replacement for R-134a refrigerant. It is also compatible with several materials commonly used in these systems, such as aluminum, copper, and polyethylene.
The term for formulas that have been carefully tested is "validated." This means that the formulas have undergone rigorous testing and evaluation to ensure their accuracy and reliability.
Lead, phthalates, and other harmful chemicals have been found in some products made of soft vinyl, including toys, clothing, and household items. Exposure to these substances can pose health risks, especially for children who may put these products in their mouths. It is important to check for product safety certifications and choose alternatives made from safer materials.
Approximately 2,056 atomic bombs have been tested since the first one in 1945. These tests have been conducted by different countries for various purposes including weapon development, deterrence, and strategic analysis. Many of these tests have been carried out underground or in remote locations to minimize their effects on the environment and population.
It would have to have a pH of greater than seven.
Technetium is the only element that has not been found in nature but has been produced synthetically.
All medication has been animal tested...
Quantum theory has been tested and theoretical and experimental values have been found to agree to more digits of precision than in any other theory tested against reality!
The chocolates that have been tested on animals are dark chocolates which contain flavanol. The flavanol is found in coca beans.
HFO-1234yf has been tested and found compatible with various refrigerant systems, particularly in automotive air conditioning applications, where it serves as a low-global warming potential (GWP) alternative to HFC-134a. It demonstrates good thermal stability and efficiency, making it suitable for both new and retrofitted systems. Additionally, manufacturers have confirmed its compatibility with common lubricants used in refrigeration systems, ensuring effective performance and reliability.
because it has been tested by several researchers and they found that it does not hold
Theory
A ruled out diagnoses simply means, an illness that has been tested for, and found not to be the cause of your symptoms.
The real quote is "you have been weighed, you have been measured, and you have been found wanting. " Wanting means to be found to not measure up; not capable of the certain task at hand. Therefore, to say this would basically mean: you have been tried and you have been tested, and you have been found to not measure up.
If a hypothesis has been tested many times (using approved experimental methods), and each test has proven the hypothesis to be true, the hypothesis can be taken to be a fact, or truth.
Meaning the water has been tested and found fit for human consumption.
That means there has been found a match to the child's DNA and the person tested has been predicted to be the biological father.
About 2,000 animals have been tested in Toronto.