Bolts , nuts and set-screws (machine bolts) B S W and B S F
standard by BSI Group, 05/01/1944
Methods for the analysis of iron and steel. Chromium in iron and steel
standard by BSI Group, 05/05/1954
Specification for hypodermic syringes for use in medical and surgical practice
standard by BSI Group, 12/16/1946
Methods for the analysis of iron and steel. Carbon (total graphitic and combined) in iron steel and ferro chromium : Gravimentric
standard by BSI Group, 08/18/1966
Universal Decimal Classification. English full edition-Co-operation
standard by BSI Group, 05/30/1969