Crockmeter

[fyitester]

[font=TwitterChirp, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif]Crockmeter, also known as rubbing fastness tester, is a machine used to assess color fastness to crocking. In addition, this essay discusses five different types of crockmeters.  https://fyitester.com/crockmeter/ [/font]