ISO/TMBG
| Registration number (WIID) | Project No. | Title | Status |
|---|---|---|---|
| 17536 | ISO 9681:1990 | Manganese ores and concentrates — Determination of iron content — Flame atomic absorption spectrometric method | Standarts spēkā |
| 16947 | ISO 9292:1988 | Manganese ores and concentrates — Determination of total iron content — 1,10-Phenanthroline spectrometric method | Standarts spēkā |
| 16415 | ISO 8889:1988 | Chromium ores and concentrates — Determination of aluminium content — Complexometric method | Standarts spēkā |
| 15791 | ISO 8542:1986 | Manganese and chromium ores — Experimental methods for evaluation of quality variation and methods for checking the precision of sampling | Standarts spēkā |
| 15790 | ISO 8541:1986 | Manganese and chromium ores — Experimental methods for checking the bias of sampling and sample preparation | Standarts spēkā |
| 15771 | ISO 8531:1986 | Manganese and chromium ores — Experimental methods for checking the precision of moisture determination | Standarts spēkā |
| 15769 | ISO 8530:1986 | Manganese and chromium ores — Experimental methods for checking the precision of sample division | Standarts spēkā |
| 14987 | ISO 7990:1985 | Manganese ores and concentrates — Determination of total iron content — Titrimetric method after reduction and sulfosalicylic acid spectrophotometric method | Standarts spēkā |
| 14957 | ISO 7969:1985 | Manganese ores and concentrates — Determination of sodium and potassium contents — Flame atomic absorption spectrometric method | Standarts spēkā |
| 14930 | ISO 7953:1985 | Manganese ores and concentrates — Determination of calcium and magnesium contents — Flame atomic absorption spectrometric method | Standarts spēkā |
Displaying 181-190 of 3303 results.