The phrase "a required range of" is correct and usable in written English.
It can be used when specifying a necessary scope or extent of something, often in technical or formal contexts.
Example: "The project must adhere to a required range of specifications to ensure compliance with industry standards."
Alternatives: "an essential scope of" or "a necessary spectrum of".
The designed system shows the capability for full control of temperature from zero to maximum for any required range of time in case of increasing or decreasing the temperature.
To adequately perform in a bioreactor environment a DO sensor must offer accurate and stable performance over the required range of DO concentrations for the duration of the experiment.
Criteria to differentiate between two scoring levels, such as the required range of motion against gravity to obtain a score of 3, should be specified.
The measurement error of the circuit was also within the required range of 0 to 100 pF which meets the requirement of tea leaf's capacitance.
The pH of fraction 4 was adjusted with NaOH to a value of 7 ± 0.5 as it was outside the required range of 6 to 8. In addition to the single fractions, effects of recombinant fractions were tested in order to get an overview of the total toxicity of organic xenobiotics in wastewater.
Trypan blue solution 0.4% (Sigma, Germany) was used to count the cells into an appropriate concentration and the viability of cells was checked; the required range of cells' viability is 95-99%.
The LAM test kits were maintained in a sealed pouch at room temperature (15 26°C°C), and always within the manufacturer's required range of 2 30°C°C.
A minimal step of 100 ns and an error tolerance of 1 × 10−4 give stable integrations over the required range of parameters.
Firstly, it must be long-running and usually at least five seasons are necessary to accumulate the required range of storylines.
