Metal scaffolding - Specification for prefabricated steel splitheads and trestlesWhat is BS 1139 4 Prefabricated steel splitheads and trestles about? BS 1139 4 is the fourth part of the multiple series that is applicable to metal scaffolding. BS 1139 4 specifies requirements for the design and fabrication of steel split heads and steel trestles for use as supports for temporary platforms. Who is BS 1139 4 Prefabricated steel splitheads and trestles for? BS 1139 4 on prefabricated steel splitheads and trestles is useful for

NC routing machines and NC combined boring/routing machines which are designed to use grinding wheels

In this connection the guide can only provide general indications and advice

the pattern of circles and rulings

BS 7666-4 specifies the form

a number of key stakeholders were part of a steering group providing input and feedback on the PAS

BS ISO 27894 defines terms relating to hot cathode ionization vacuum gauges

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4 Analysis of data

3 Mechanical properties

roll-over protective structures (ROPS) test procedures

sealing and assembly processes

preparation product test solutions