BS 4559-5.6:1987

Заменен

Methods for preparation of calibration gas mixtures. Dynamic volumetric methods, Sonic orifices — 18 стр.

Заменен на

BS EN ISO 6145-6:2008

ICS

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