The phrase "amount is required" is correct and usable in written English.
It can be used in contexts where you need to specify that a certain quantity or sum is necessary for a particular purpose.
Example: "To complete your application, please ensure that the correct amount is required for the processing fee."
Alternatives: "a quantity is needed" or "a sum is necessary."
When Cameron repudiates his late father's activities and pays HMRC whatever amount is required to cover the benefit he personally obtained from his father's "morally wrong" activities, then I'll start to take his indignation seriously.
Although the chocolate liquor used in manufacturing eating chocolate already contains cocoa butter, an additional amount is required to produce a molded product that remains firm until dissolved in the mouth.
A greater calculation amount is required for the planning scheme.
When LWA is used as internal curing medium within concrete, usually small amount is required to supply the additional water (Bentz and Weiss 2010).
Spreading the product fertilizer from this process might take more energy when compared to mineral fertilizer because the nutrient content is less; thus, a larger amount is required.
Our studies clearly indicate that Ppt1 protein is expressed ubiquitously at a very low level such that only a minute amount is required for function.
Determining what an unusual amount is requires filtering out insider activity that is habitual or plausibly explained.
As a response to the growth of literacy and the prevalence of perjury and fraud, wills and contracts for the sale of land or goods (of more than a certain amount) were required to be in writing.
However, 500 LT of this amount was required to act as ballast to offset the weight of the island and its equipment.
Also, as only relatively tiny amounts are required to flavour a dish, you will always have on hand a ready supply of crops that are hard to find and expensive to buy.
