National foreword
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Hazards
5 Safety requirements
5.1 General
5.2 Dimensions
5.2.1 Nominal size of chain, d[n]
5.2.2 Tolerance on material diameter (except
at the weld)
5.2.3 Weld diameter
5.2.4 Length dimensionally affected by welding
5.2.5 Pitch and widths
5.3 Materials and heat treatment
5.3.1 General
5.3.2 Quality of material
5.3.3 Heat treatment
5.3.4 Stainless steel
5.4 Mechanical properties
5.4.1 Manufacturing proof force (MPF)
5.4.2 Breaking force (BF) and total ultimate
elongation (A)
5.4.3 Bend deflection
6 Verification of safety requirements
6.1 Qualification of personnel
6.2 Size of lot and selection of samples
6.3 Manufacturing proof force, breaking force and
total ultimate elongation
6.3.1 Static tensile test
6.3.2 Manufacturing proof force acceptance criteria
6.3.3 Breaking force and total ultimate elongation
acceptance criteria
6.4 Bend deflection
6.4.1 Bend test
6.4.2 Bend deflection acceptance criteria
7 Marking
8 Manufacturer's certificate
9 Information for use
Annex A (informative) - Calculation of dimensions,
working load limits and mechanical properties
A.1 Dimensions and tolerances
A.2 Working load limits and mechanical properties
Annex B (informative) - Mass of chain
Annex C (informative) - Designation system for chain
(medium tolerance) - Grade 4
Annex ZA (informative) - Relationship between this
European Standard and the Essential Requirements
of EU Directive 98/37/EC
Annex ZB (informative) - Relationship between this
European Standard and the Essential Requirements
of EU Directive 2006/42/EC
Bibliography