I.S. EN 74:1989
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
COUPLERS, LOOSE SPIGOTS AND BASE-PLATES FOR USE IN WORKING SCAFFOLDS AND FALSEWORK MADE OF STEEL TUBES - REQUIREMENTS AND TEST PROCEDURES
Hardcopy , PDF
12-02-2005
English
01-01-1989
For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
Only cited Standards give presumption of conformance to New Approach Directives/Regulations.
1 Object and field of application
2 References
3 Definitions
3.1 Coupler
3.2 Right angle coupler (RA)
3.3 Swivel coupler (SW)
3.4 Parallel coupler (PA)
3.5 Sleeve coupler (SF of SS)
3.6 Loose spigot (LS)
3.7 Base-plate (BP)
4 Symbols
4.1 Measured values
4.2 Statistical values
5 Materials and design
5.1 Materials
5.2 Design
5.3 Data required from the manufacturer for assessment
purposes
6 Requirements
6.1 Design requirements
6.2 Required characteristics for couplers under load
6.3 Requirements in the case of design alteration
7 Sampling for prototype tests
8 Assessment methods
8.1 Assessment without statistical analysis
8.2 Assessment with statistical analysis
9 Load tests for prototype couplers
9.1 General
9.2 Testing of behaviour under load of right angle couplers
9.3 Testing of behaviour under load of swivel couplers
9.4 Determination of the ultimate load for right angle and
swivel couplers
9.5 Testing of the torsional rigidity of right angle couplers
9.6 Tensile tests on friction type sleeve couplers
9.7 Bending load capacity testing of class B sleeve couplers
9.8 Tensile testing of sleeve couplers with shear pins
9.9 Testing of behaviour under load of parallel couplers
9.10 Determination of the ultimate load for parallel couplers
10 Test report and certificates
10.1 Test report
10.2 Certificates
11 Designation
12 Marking
Figures
Tables
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