BS ISO 8568:2007

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Performance
  4.1 General
  4.2 Operation principles
  4.3 Test types
  4.4 Shock-testing machine components
5 Shock-testing machine specification
6 Requirements for shock-testing machines
  6.1 General
  6.2 Safety requirements
  6.3 Table or carriage
  6.4 Hoisting or pre-loading
  6.5 Braking systems
  6.6 Reaction mass
  6.7 Shock pulse-shaping devices and methods
7 Inspection of a shock-testing machine
  7.1 General
  7.2 Preparation procedure
  7.3 Example of an inspection procedure for a shock-testing
      machine operation
Annex A (informative) - Devices for shaping various pulse shapes
Annex B (informative) - Shock-response spectra, shock synthesis
                        and analysis
Annex C (informative) - Use of a vibration generator for producing
                        a shock pulse
Annex D (normative) - Determination of uniformity of acceleration
                      and relative transverse motion on the table
                      of a shock-testing machine
Annex E (normative) - Stray magnetic field
Bibliography

Describes performance parameters and methods of inspection of mechanical shock-testing machines and gives guidelines for describing their characteristics. It is intended to ensure that the potential user of a particular shock-testing machine is provided with an adequate description of the characteristics of the machine, and also to give guidance on the selection of such machines.

This International Standard specifies performance parameters and methods of inspection of mechanical shock-testing machines and gives guidelines for describing their characteristics. It is intended to ensure that the potential user of a particular shock-testing machine is provided with an adequate description of the characteristics of the machine, and also to give guidance on the selection of such machines.

This International Standard is applicable to the shock-testing machines that are used for demonstrating or evaluating the effect of shock conditions representative of the service environment in accordance with the relevant part of IEC60068 and also for diagnostic testing. The purpose of the shock test is to reveal mechanical weakness and/or degradation in specified performance. It can also be used to determine the structural integrity of a test specimen or as a means of quality control.

Machines used for simulation of earthquakes, sonic booms, explosions and implosions, bursting tests, metalworking, forming, etc. are not covered in this International Standard.

Several techniques for generating the desired shock motion are discussed. Both simple-pulse and complex transients can be produced. The simulation of transients can be achieved by control of the test with a specified shock-response spectrum.

NOTE1 AnnexA gives a description of pulse-shaping devices. AnnexB defines methods of application of the shock response spectra. AnnexC considers a method of evaluating the possibility of using a vibration generator for producing a shock pulse. AnnexesD and E deal with the methods of measurement of some characteristics in inspection methods (or procedures) of shock-testing machines.

NOTE2 Characteristics of vibration-generating equipment are covered in ISO5344, ISO6070 and ISO8626.