Chrome-Free Leather definition
Chrome-Free Leather means that: (a) the skin or hide used to make the leather was converted to leather by tanning agents free of chromium salts, including but not limited to chromium sulfate; (b) the leather was not intentionally treated, dyed or exposed to chemicals that contain chromium as an intended ingredient; and (c) the total content of the chromium in the tanned leather is less than or equal to 0.1% (mass of chromium/total dry weight of leather) when measured using ISO 17072-2.
Chrome-Free Leather means leather that: (a) was not at any point in the production process treated or tanned with chromium based tannins, including but not limited to chromium sulfate; (b) was not otherwise treated, dyed or exposed to chemicals that contain chromium as an intended ingredient; and (c) was not produced in tanneries that have material residual chromium contamination; and (d) has extractable chromium of less than 2 part per million by weight when tested pursuant to ISO 17072-1 or a successor ISO standard that measures extractable total chromium.