BS 4451:1980

Заменен

Method for determination of carbon residue of petroleum products (Ramsbottom method) — 14 стр.

Заменен на

BS 2000-14:1994

ICS

75.080 Petroleum products in general / Нефтяные продукты в целом

71.040.40 Chemical. Including analysis of gases and surface chemical analysis / Химический анализ. Включая анализ газов