Ko'r perchinlar uchun qanday qattiqlik sinovlari mavjud?

Keng tarqalgan qattiqlik sinovlari quyidagilarni o'z ichiga oladi: Rokvell qattiqligi (HR), Rokvell sirt qattiqligi (HR), Vikers qattiqligi (HV), Mikro Vikers qattiqligi (HV), Knoop qattiqligi (HK), Brinell qattiqligi (HB), Lib qattiqligi (HL) (qayta ulash usuli), ultratovush qattiqlik sinovi (UCI), Shore qattiqligi (SHORE).

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