New and secondhand crash barrier complies in most respects with BS 6579 Part 7:1989; "SAFETY FENCES AND BARRIERS FOR HIGHWAYS: Specifications for Components for Untensioned Corrugated Beam Safety Fence". "Armco" is the most versatile type of barrier; being a ‘de facto’ world standard.

Drawings and dimensions are shown in The Stationery Office (TSO) publication (ISBN: 0-11-552367-7):- MANUAL OF CONTRACT DOCUMENTS FOR HIGHWAY WORKS (Volume 3) Highway Construction Details; Section 2; Safety Fences and Barriers.

New crash barrier is galvanized to BS EN ISO 1461:- "Hot dip galvanized coating on fabricated ferrous products". Finish is silver colour, shading to dark grey over time, and beams can be painted to match a local colour scheme. No routine maintenance is needed and standard components are easily replaced.