DIN Standards Committee Optics and Precision Mechanics
ISO/DIS 25644
Jewellery and precious metals - Determination of gold - ICP-OES method using an internal standard element
Schmuck und Edelmetalle - Bestimmung von Gold - ICP-OES Verfahren unter Verwendung eines internen Standardelements
Responsible national committee
NA 027-04-04 AA - Methods of analysis for determination of fineness of precious metals