BS 1881-207 92nd Edition, January 31, 1992
Testing concrete — Part 207: Recommendations for the assessment of concrete strength by near-to-surface tests
Includes all amendments and changes through Reaffirmation Notice , July 1, 2014
Published By:British Standards Institution (BSI)
Procedures for internal fracture, pull-out, pull-off, penetration resistance, break-off tests and use of results.