Chemistry The determination of chemistry requires a proper sampling method (see above). 1. Chemistry Ferro-alloys are sold with a chemistry specification, being understood that each ferro-alloy will show main elements and trace elements, and the acceptable margins of error will differ between these 2 types of elements. a. For the main elements of ferro-alloys the acceptable deviation limit is (unless otherwise specified in the contract): i. Ferro-manganese: Mn 0.5% ii. Ferro-silico-manganese: Mn & Si 0.5% iii. Ferro-silicon: Si 0.5% iv. Ferro-chromium: Cr 0.5% v. Ferro-silico-calcium: Si 0.5% b. For the main elements of ferro-alloys or assimilated products (e.g. alloy pig iron) not listed here-above, both parties will communicate about their respective analysis methods and endeavor to reach a mutual agreement. c. For the trace elements the acceptable deviation limit is not applicable as such. Both parties will communicate the margins of error of their respective analysis methods, and the acceptable deviation will be related to the highest margin of error implied by the sampling and analysis method. 7
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