BS 4976:1973

Заменен

Specification for polytetrafluoroethylene (PTFE) tubing extruded from coagulated dispersion powder. Metric and imperial units

Заменен на

BS 6564-2:1985

ICS

83.140.01 Rubber and plastics products in general / Резиновые и пластмассовые изделия в целом

83.080.20 Thermoplastic materials / Термопластические материалы