Read each of the following passages and answer the items that follow. Your answers to these items should be based on the passages only.
A standard comprises characteristics attached to an aspect of a process or product by which it can be evaluated. Standardization is the development and adoption of standards. When they are formulated, standards are not usually the product of a single person, but represent the thoughts and ideas of a group, leavened with the knowledge and information which are currently available. Standards which do not meet certain basic requirements become a hindrance rather than an aid to progress. Standards must not only be correct, accurate, and precise in requiring no more and no less than what is needed for satisfactory results, but they must also be workable in the sense that their usefulness is not nullified by external conditions. Standards should also be acceptable to the people who use them. If they are not acceptable, they cannot be considered to be satisfactory, although they may possess all the other essential characteristics.
According to the above paragraph, a processing standard that requires the use of materials that cannot be procured, is most likely to be