Ka'idar Yawancin lokaci, ƙididdigar girman barbashi yana ba da ma'auni na hatsi na diamita daban-daban; Ana iya yin wannan bincike ko dai ta hanyar sieving ko ta hanyar lalata ruwa a cikin aiwatar da dokar Stokes.
Dangane da girman da adadin hatsin da ke yin tara, ana kiran tararrakin tara, yashi, tsakuwa ko tsakuwa. Koyaya, ga jimlar da aka ba da, duk nau'in hatsin da ya ƙunshi ba duka suna da girma iri ɗaya ba.
Don yin wannan, ana rarraba hatsi a kan jerin gwanon gida.
