scope:

This part of ISO 22476 deals with equipment requirements, the execution of and reporting on electrical cone and piezocone penetration tests. Within the electrical cone and piezocone penetration test, two subcategories of the cone penetration test are considered: - electrical cone penetration test (CPT), which includes measurement of cone resistance and sleeve friction; - piezocone test (CPTU), which is a cone penetration test with the additional measurement of pore pressure. The CPTU is performed like a CPT with the measurement of the pore pressure at one or several locations on the penetrometer surface. This part of ISO 22476 specifies the following features: a) type of cone penetration test, according to Table 1; b) application class, according to Table 2; c) penetration length or penetration depth; d) elevation of the ground surface or the underwater ground surface at the location of the cone penetration test with reference to a datum; e) location of the cone penetration test relative to a reproducible fixed location reference point; f) pore pressure dissipation tests.