Attainable standards also are known as expected or practical standards is a standard which can be attained if a standard unit of work is carried out efficiently, a machine properly operated or materials properly used. This standard is most widely used in practice. The attainable standard is based on an efficient operating condition though not a perfect condition.
This standard covers allowances for normal materials wastage, for fatigue, machine breakdown and so forth. This standard is most realistic in nature and hence used for cost control, valuing stock and the basis for budgeting.