Registration number (WIID)Project No.TitleStatus
16947ISO 9292:1988Manganese ores and concentrates — Determination of total iron content — 1,10-Phenanthroline spectrometric methodStandarts spēkā
16415ISO 8889:1988Chromium ores and concentrates — Determination of aluminium content — Complexometric methodStandarts spēkā
15791ISO 8542:1986Manganese and chromium ores — Experimental methods for evaluation of quality variation and methods for checking the precision of samplingStandarts spēkā
15790ISO 8541:1986Manganese and chromium ores — Experimental methods for checking the bias of sampling and sample preparationStandarts spēkā
15771ISO 8531:1986Manganese and chromium ores — Experimental methods for checking the precision of moisture determinationStandarts spēkā
15769ISO 8530:1986Manganese and chromium ores — Experimental methods for checking the precision of sample divisionStandarts spēkā
14987ISO 7990:1985Manganese ores and concentrates — Determination of total iron content — Titrimetric method after reduction and sulfosalicylic acid spectrophotometric methodStandarts spēkā
14957ISO 7969:1985Manganese ores and concentrates — Determination of sodium and potassium contents — Flame atomic absorption spectrometric methodStandarts spēkā
14930ISO 7953:1985Manganese ores and concentrates — Determination of calcium and magnesium contents — Flame atomic absorption spectrometric methodStandarts spēkā
14556ISO 7723:1984Manganese ores and concentrates — Determination of titanium content — 4,4'-Diantipyrylmethane spectrometric methodStandarts spēkā
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