ISO/TC 174
| Registration number (WIID) | Project No. | Title | Status |
|---|---|---|---|
| 74900 | ISO/CD 11494 | Jewellery — Determination of platinum in platinum jewellery alloys — ICP-OES method using yttrium as internal standard element | Izstrādē |
| 19445 | ISO/DIS 11494.2 | Determination of platinum in platinum jewellery alloys — Method using inductively coupled plasma emission spectrometry on a solution with yttrium as internal standard | Izstrādē |
| 74903 | ISO/CD 15093 | Jewellery — Determination of precious metals in 999 0/00 gold, platinum and palladium jewellery alloys — Difference method using ICP-OES | Izstrādē |
| 19444 | ISO/WD 11493 | Determination of gold in white gold jewellery alloys — ICP — Solution spectrometric method | Izstrādē |
| 71216 | ISO/NP 21599 | Jewellery — Turquoise — Identification (Specification and test methods) | Izstrādē |
| 62229 | ISO/NP 18348 | Diamond — Specification and test methods | Izstrādē |
| 31331 | ISO/FDIS 11211-1 | Grading polished diamonds — Part 1: Terminology and classification | Izstrādē |
| 57649 | ISO/DIS 11489 | Determination of platinum in platinum jewellery alloys — Gravimetric determination by reduction with mercury(I) chloride | Izstrādē |
| 19446 | ISO/DIS 11495.2 | Determination of palladium in palladium jewellery alloys — Method using inductively coupled plasma emission spectrometry on a solution with yttrium as internal standard | Izstrādē |
| 92254 | ISO/PWI 15096 | Jewellery and precious metals — Determination of high purity silver — Difference method using ICP-OES | Izstrādē |
Displaying 31-40 of 104 results.