Ideal standards:

These represent the level of performance attainable when prices for
material and labour are most favourable, when the highest output is achieved with the best
equipment and layout and when the maximum efficiency in utilisation of resources results in
maximum output with minimum cost. These type of standards are criticised on three grounds:
(i) Since such standards would be unattainable, no one would take them seriously.
(ii) The variances disclosed would be variances from the ideal standards. These would not,
therefore, indicate the extent to which they could have been reasonably and practically
avoided.
(iii) There would be no logical method of disposing of these variances.