CEN/SS M21
| Registration number (WIID) | Project No. | Title | Status |
|---|---|---|---|
| 61960 | LVS EN ISO 11427:2017 | Jewellery - Determination of silver in silver jewellery alloys - Volumetric (potentiometric) method using potassium bromide (ISO 11427:2014) | Atcelts |
| 67096 | LVS EN ISO 11426:2021 | Jewellery and precious metals - Determination of gold - Cupellation method (fire assay) (ISO 11426:2021) | Standarts spēkā |
| 61959 | LVS EN ISO 11426:2017 | Jewellery - Determination of gold in gold jewellery alloys - Cupellation method (fire assay) (ISO 11426:2014) | Atcelts |
| 75572 | LVS EN ISO 11210:2023 | Jewellery and precious metals - Determination of platinum - Gravimetry using ammonium chloride (ISO 11210:2023) | Standarts spēkā |
| 61958 | LVS EN ISO 11210:2017 | Jewellery - Determination of platinum in platinum jewellery alloys - Gravimetric method after precipitation of diammonium hexachloroplatinate (ISO 11210:2014) | Atcelts |
Displaying 11-15 of 15 results.