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Document Designation and Title Year Select Item(s) E246 Standard Test Methods for Determination of Iron in Iron Ores and Related Materials by Dichromate Titration 01(2005) E246 Standard Test Methods for Determination of Iron in Iron Ores and Related Materials by Dichromate Titration 01 E246 Standard Test Methods for Determination of Iron in Iron Ores and Related Materials by Dichromate Titration 95