EN ISO 17892-12:2018/A1:2021

Geotechnical investigation and testing - Laboratory testing of soil - Part 12: Determination of liquid and plastic limits - Amendment 1 (ISO 17892-12:2018/Amd 1:2021) EN ISO 17892-12:2018/A1:2021

Publication date:   Feb 17, 2022

General information

60.60 Standard published   Sep 8, 2021

CEN

CEN/TC 341 Geotechnical Investigation and Testing

European Norm

13.080.20   Physical properties of soils | 93.020   Earthworks. Excavations. Foundation construction. Underground works

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Scope

This document specifies methods for the determination of the liquid and plastic limits of a soil. These comprise two of the Atterberg limits for soils.
The liquid limit is the water content at which a soil changes from the liquid to the plastic state.
This document describes the determination of the liquid limit of a specimen of natural soil, or of a specimen of soil from which material larger than about 0,4 mm has been removed. This document describes two methods: the fall cone method and the Casagrande method.
NOTE The fall cone method in this document should not be confused with that of ISO 17892‑6.
The plastic limit of a soil is the water content at which a soil ceases to be plastic when dried further.
The determination of the plastic limit is normally made in conjunction with the determination of the liquid limit. It is recognized that the results of the test are subject to the judgement of the operator, and that some variability in results will occur.

Life cycle

PREVIOUSLY

PUBLISHED
EN ISO 17892-12:2018

NOW

PUBLISHED
EN ISO 17892-12:2018/A1:2021
60.60 Standard published
Sep 8, 2021