NF A70-022*NF ISO 22764:2020
Jewellery and precious metals - Fineness of solders used with precious metal jewellery alloys

Standard No.

NF A70-022*NF ISO 22764:2020

Release Date

2020

Published By

Association Francaise de Normalisation

Latest

NF A70-022*NF ISO 22764:2020

NF A70-022*NF ISO 22764:2020 history

• 2020 NF A70-022*NF ISO 22764:2020 Jewellery and precious metals - Fineness of solders used with precious metal jewellery alloys