Norm
[AKTUELL]
NF S89-004
; NF ISO 6893:2024-05-01
NF S89-004
; NF ISO 6893:2024-05-01
Jewellery and precious metals - Inspection of batches of small diamonds - Terminology, classification and test methods
Titel (englisch)
Jewellery and precious metals - Inspection of batches of small diamonds - Terminology, classification and test methods