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BS EN 818-2 : 1997

Current
Current

The latest, up-to-date edition.

SHORT LINK CHAIN FOR LIFTING PURPOSES - SAFETY - PART 2: MEDIUM TOLERANCE CHAIN FOR CHAIN SLINGS - GRADE 8
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

01-01-1997

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 Quality of material
      5.3.2 Heat treatment
  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) - Weight of chain
Annex C (informative) - Designation system for chain (medium
        tolerance) - grade 8
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

Describes the requirements related to safety for short link chains, grade 8, of medium tolerance for use in chain slings according to EN 818-4:1996+A1 and for general lifting purposes.

Committee
MHE/1
DevelopmentNote
Supersedes 92/80474 DC (09/2005) 1996 Edition Re-Issued in November 2008 & incorporates AMD 1 2008. Supersedes 06/30145702 DC. (11/2008) Reviewed and confirmed by BSI, July 2014. (06/2014)
DocumentType
Standard
Pages
16
PublisherName
British Standards Institution
Status
Current
Supersedes

BS 7905-1:2001 Lifting equipment for performance, broadcast and similar applications Specification for the design and manufacture of above stage equipment (excluding trusses and towers)

EN 1050 : 1996 SAFETY OF MACHINERY - PRINCIPLES FOR RISK ASSESSMENT
EN ISO 12100-1:2003/A1:2009 SAFETY OF MACHINERY - BASIC CONCEPTS, GENERAL PRINCIPLES FOR DESIGN - PART 1: BASIC TERMINOLOGY, METHODOLOGY
ISO 12100-2:2003 Safety of machinery Basic concepts, general principles for design Part 2: Technical principles
EN ISO 12100-2:2003/A1:2009 SAFETY OF MACHINERY - BASIC CONCEPTS, GENERAL PRINCIPLES FOR DESIGN - PART 2: TECHNICAL PRINCIPLES
ISO 643:2012 Steels Micrographic determination of the apparent grain size
ISO 497:1973 Guide to the choice of series of preferred numbers and of series containing more rounded values of preferred numbers
ISO 12100-1:2003 Safety of machinery Basic concepts, general principles for design Part 1: Basic terminology, methodology
EN 818-6:2000+A1:2008 Short link chain for lifting purposes - Safety - Part 6: Chain slings - Specification for information for use and maintenance to be provided by the manufacturer
EN 818-1:1996+A1:2008 Short link chain for lifting purposes - Safety - Part 1: General conditions of acceptance
1998/37/EC : 1998 DIRECTIVE 98/37/EC OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL OF 22 JUNE 1998 ON THE APPROXIMATION OF THE LAWS OF THE MEMBER STATES RELATING TO MACHINERY

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