Specification for steel butt-welding pipe fittings for the petroleum industry. Wrought and cast austenitic chromium-nickel steel fittings. Metric units.
STANDARD published on 21.3.1968
Designation standards: BS 1640-4:1968
Note: WITHDRAWN
Publication date standards: 21.3.1968
The number of pages: 20
Approximate weight : 60 g (0.13 lbs)
Country: British technical standard
Category: Technical standards BS