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ISO 310:1992PublishedManganese ores and concentrates — Determination of hygroscopic moisture content in analytical samples — Gravimetric methodISO 312:1986PublishedManganese ores — Determination of active oxygen content, expressed as manganese dioxide — Titrimetric methodISO 315:1984PublishedManganese ores and concentrates — Determination of nickel content — Dimethylglyoxime spectrometric method and flame atomic absorption spectrometric methodISO 317:1984PublishedManganese ores and concentrates — Determination of arsenic content — Spectrometric methodISO 320:1981PublishedManganese ores — Determination of sulphur content — Barium sulphate gravimetric methods and sulphur dioxide titrimetric method after combustionISO 548:1981PublishedManganese ores — Determination of barium oxide content — Barium sulphate gravimetric methodISO 549:1981PublishedManganese ores — Determination of combined water content — Gravimetric methodISO 619:1981PublishedManganese ores — Determination of chromium content — Diphenylcarbazide photometric method and silver persulphate titrimetric methodISO 4293:1982PublishedManganese ores and concentrates — Determination of phosphorus content — Extraction-molybdovanadate photometric methodISO 4295:1988PublishedManganese ores and concentrates — Determination of aluminium content — Photometric and gravimetric methodsISO 4296-1:1984PublishedManganese ores — Sampling — Part 1: Increment samplingISO 4296-2:1983PublishedManganese ores — Sampling — Part 2: Preparation of samplesISO 4297:1978PublishedManganese ores and concentrates — Methods of chemical analysis — General instructionsISO 4298:2022PublishedManganese ores and concentrates — Determination of manganese content — Potentiometric methodISO 4299:1989PublishedManganese ores — Determination of moisture contentISO 4571:1981PublishedManganese ores and concentrates — Determination of potassium and sodium content — Flame atomic emission spectrometric methodISO 5889:1983PublishedManganese ores and concentrates — Determination of aluminium, copper, lead and zinc contents — Flame atomic absorption spectrometric methodISO 5890:1981PublishedManganese ores and concentrates — Determination of silicon content — Gravimetric methodISO 6230:1989PublishedManganese ores — Determination of size distribution by sievingISO 6233:1983PublishedManganese ores and concentrates — Determination of calcium and magnesium contents — EDTA titrimetric methodISO 7723:1984PublishedManganese ores and concentrates — Determination of titanium content — 4,4'-Diantipyrylmethane spectrometric methodISO 7953:1985PublishedManganese ores and concentrates — Determination of calcium and magnesium contents — Flame atomic absorption spectrometric methodISO 7969:1985PublishedManganese ores and concentrates — Determination of sodium and potassium contents — Flame atomic absorption spectrometric methodISO 7990:1985PublishedManganese ores and concentrates — Determination of total iron content — Titrimetric method after reduction and sulfosalicylic acid spectrophotometric methodISO 8530:1986PublishedManganese and chromium ores — Experimental methods for checking the precision of sample division