What Is The Difference between BS1139,EN10219,EN39,EN74

BS1139,EN10219,EN39,and EN74 are standards related to scaffolding and structural steel products, each specifying requirements for different aspects of their manufacture, design, and use. Here's a brief overview of each:

1.BS1139:

This British Standard specifies requirements for tubes couplers, and scaffolds used in construction. It covers materials, dimensions, tolerances, and mechanical properties for steel tubes and fittings used in scaffolding.BS1139 is widely recognized and used in the construction industry, particularly in the United Kingdom and many Commonwealth countries.

2.EN10219: 

This European Standard specifies technical delivery conditions for cold-formed welded structural hollow sections of non-alloy and fine grain steels. It covers equirements for dimensions, tolerances,and sectional properties of circular, square,and rectangular hollow sections used in construction and structural applications. 

3.EN39: 

This European Standard specifies requirements for tubes and couplers used in scaffolding. It covers materials, dimensions,tolerances, and mechanical properties for steel tubes and fittings used in scaffolding systems.EN39 is recognized within the European Union and other regions as a standard for scaffolding materials. 

4. EN74: 

This European Standard specifies requirements for couplers,fittings, and accessories used in tubular scaffolding systems.It covers materials, dimensions, tolerances,and mechanical properties for various types of couplers used to connect scaffold tubes.EN74 ensures compatibility and safety in scaffolding assemblies within the European Union and other regions where it is adopted.

Summary:

• BS1139: A broad British standard covering all aspects of metal scaffolding, including tubes, couplers, and fittings.

• EN10219: A European standard for cold-formed welded structural hollow sections used in various structural applications, including scaffolding.

• EN39: A European standard specifically for loose steel tubes used in tube and coupler scaffolds, focusing on their dimensions and material properties.

• EN74: A European standard focusing on couplers, spigot pins, and baseplates for scaffolding, detailing their design and performance requirements.