How many strikes per minute should the sieve be struck during the adequacy check?

The adequacy check for a sieve involves ensuring that it is functioning correctly and providing accurate results. Striking the sieve at a consistent rate is crucial because it affects the efficiency of particle separation during the sieving process. The industry standard specifies that the sieve should be struck at a rate of 150 strikes per minute for an adequacy check. This rate is optimal for achieving a balance between sufficient energy to dislodge particles while maintaining the integrity of the sieve and the sample being tested. Thus, maintaining this specific strike rate helps in providing reliable measurements and is essential for accurate material classification in soil and aggregate testing.