UNE-EN ISO 11210:2023 Jewellery and precious metals - Determination of platinum - Gravimetry using ammonium chloride (ISO 11210:2023) (Endorsed by Asociación Española de Normalización in April of 2023.)
2023UNE-EN ISO 11210:2023 Jewellery and precious metals - Determination of platinum - Gravimetry using ammonium chloride (ISO 11210:2023) (Endorsed by Asociación Española de Normalización in April of 2023.)