BS 3630-7:1967

Заменен

Methods for the sampling and analysis of zinc and zinc alloys, Lead in zinc (grades Zn 3 and Zn 4) (polarographic method) — 6 стр.

Ссылочные документы

Действует

Zinc and zinc alloys. Chemical analysis. Determination of lead, cadmium and copper. Flame atomic absorption spectometric method — 16 стр.