EN ISO 22476-12:2009

Foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions, symbols and abbreviated terms
  3.1 Terms and definitions
  3.2 Symbols and abbreviated terms
4 Equipment
  4.1 Cone penetrometer load sensors
  4.2 Tolerances
  4.3 Surface roughness
  4.4 Cone penetrometer
  4.5 Cone
  4.6 Friction sleeve
  4.7 Push rods
  4.8 Inner rods
  4.9 Measuring system
  4.10 Thrust machine
5 Test procedures
  5.1 Selection of type of cone penetrometer test
  5.2 Selection of equipment and procedures
  5.3 Position and level of thrust machine
  5.4 Preparation
  5.5 Pushing of the cone penetrometer
  5.6 Use of friction reducer
  5.7 Frequency of logging parameters
  5.8 Measurement of cone penetration force for
       discontinuous penetration testing
  5.9 Measurement of cone penetration force for
       continuous testing
  5.10 Measurement of sleeve friction force for
       discontinuous testing with M2 cone
       penetrometers
  5.11 Measurement of total penetration force for
       discontinuous testing
  5.12 Measurement of total penetration force for
       continuous testing (TM4)
  5.13 Measurement of the penetration length
  5.14 Test completion
  5.15 Equipment checks and calibrations
6 Test results
  6.1 Measured parameters
  6.2 Calculated parameters
7 Reporting
  7.1 General
  7.2 Reporting of test results
  7.3 Presentation of test results
Annex A (normative) - Maintenance, checks and calibration
Bibliography

ISO 22476-12:2009 specifies a mechanical cone penetration test (CPTM), including equipment requirements, execution and reporting. The results from such geotechnical testing are especially suited to the qualitative and/or quantitative determination of a soil profile — together with direct investigations — or as a relative comparison with other in situ tests.The results from a cone penetration test can in principle be used to evaluate stratification, soil type, and geotechnical parameters such as soil density, shear‑strength parameters and deformation and consolidation characteristics.ISO 22476-12:2009 specifies the following features: type of cone penetration test; application class; penetration length or penetration depth; elevation of the ground surface or underwater ground surface at the location of the cone penetration test with reference to a datum; location of the cone penetration test relative to a reproducible fixed location reference point.