November - December 2000
TWI has representatives on many national and international standards committees for welding and joining. Their expert contribution to the work of these committees, and assistance to Industrial Members on standards issues is an important TWI activity.
New and revised British Standards
British Standards
BS EN ISO 9606:
Approval testing of welders - fusion welding
BS EN ISO 9606-3: 1999
Copper and copper alloys. WEE/36.
No current standard is superseded
BS EN ISO 9606-4: 1999
Nickel and nickel alloys. WEE/36
No current standard is superseded
BS EN ISO 12737: 1999
Metallic materials - determination of plane-strain fracture toughness. No curent standard is superseded. ISE/NFE/4/4
BS EN ISO 11120: 1999
Gas cylinders - refillable seamless steel tubes for compressed gas transport, of water capacity between 150 l and 3000 l - design, construction and testing. No current standard is superseded. PVE/3/3
BS EN ISO 12224:
Flux cored solder wire - specification and test methods
BS EN ISO 12224-2: 1999
Determination of flux content. Together with BS EN 12224-1: 1998 supersedes BS 441: 1980. NFE/27/4
BS EN 12584: 1999
Imperfections in oxyfuel flame cuts, laser beam cuts and plasma - terminology. No current standard is superseded. WEE/1
Amendments to British Standards
BS 5950:
Structural use of steelwork in building. B/525/31
BS 5950-6: 1995
Code of practice for design of light gauge profiled steel sheeting. Corrigendum No.1 AMD 10475
BS EN 286:
Simple unfired pressure vessels designed to contain air or nitrogen.
BS EN 286-1: 1998
Pressure vessels for general purposes. Corrigendum No.1 AMD 10548. PVE/17
Reviewed and confirmed British Standards
BS 470: 1984
Specification for inspection, access and entry openings for pressure vessels. PVE/1
BS 5276:
Pressure vessel details (dimensions)
BS 5276-1: 1984:
Specification for davits for branch covers of steel vessels. PVE/1
BS 4871:
Specification for approval testing of welders working to approved welding procedures.
BS 4871-3: 1985
Arc welding of tube to tube-plate joints in metallic materials. WEE/36
BS 4872:
Specification for approval testing of welders when welding procedure approval is not required.
BS 4872-1: 1982
Fusion welding of steel.
BS 4872-2: 1976
TIG or MIG welding of aluminium and its alloys. WEE/36
Obsolete British Standards
BS 3274: 1960
Specification for tubular heat exchangers for general purposes.
Standard is becoming technically dated. PVE/1
BS 5276:
Pressure vessel details (dimensions)
BS 5276-4: 1977
Standardised pressure vessels.
Standard is becoming technically dated. PVE/1
Withdrawn British Standards
BS 3915: 1965
Specification for carbon and low alloy steel pressure vessels for primary circuits of nuclear reactors. PVE/1.
This standard is technically out of date.
BS 5276:
Pressure vessel details (dimensions)
BS 5276-3: 1979
Dimensional tolerances for ferrous pressure vessels. PVE/1.
This standard is technically out of date.
BS 441: 1980
Specification for purchasing requirements for flux-cored and solid soft-solder wire. NFE/27/4.
Superseded by BS EN ISO 12224-1: 1998 and BS EN ISO 12224-2: 1999
BS 4870:
Approval testing of welding procedures. WEE/36
BS 4870-4: 1998
Specification for automatic fusion welding of metallic materials, including welding operator approval.
Superseded by BS EN 1418: 1998
Special announcements
EN 13445
Unfired pressure vessels. This standard will eventually be the European unfired pressure vessel standard, with a scope similar to the existing UK national standard BS 5500. The seven draft parts, with the Drafts for Public Comment number allocated, are:
prEN 13445-1 99/706401 DC
General
prEN 13445-2: 99/706402 DC
Materials
prEN 13445-3: 99/706403 DC
Design
prEN 13445-4: 99/706404 DC
Manufacture
prEN 13445-5: 99/706405 DC
Inspection and testing
prEN 13445-6: 99/706406 DC
Safety systems
prEN 13445-7:
Additional requirements for design and fabrication of pressure vessels and vessel parts constructed of spheroidal graphite cast iron 99/706407 DC. PVE/1
New work started
UK
BS 5500: ENQ 106: R1
Examples to illustrate the assessment of vessels subject to fatigue. PVE/1
International
ISO 14323
Resistance welding - specimen dimensions and procedure for impact shear and cross section. ISO/TC 44/SC 5 through WEE/2
ISO 17632
Welding consumables - tubular cored electrodes for metal arc welding with or without a gas shield of non alloy and fine grain steels - classification. ISO/TC 44/SC 3 through WEE/39
