EN ISO 17892-12:2018/A2:2022

Geotechnical investigation and testing - Laboratory testing of soil - Part 12: Determination of liquid and plastic limits - Amendment 2 (ISO 17892-12:2018/Amd 2:2022)

Geotechnische Erkundung und Untersuchung - Laborversuche an Bodenproben - Teil 12: Bestimmung der Fließ- und Ausrollgrenzen - Änderung 2 (ISO 17892-12:2018/Amd 2:2022)

No scope available

Reconnaissance et essais géotechniques - Essais de laboratoire sur les sols - Partie 12: Détermination des limites de liquidité et de plasticité - Amendement 2 (ISO 17892-12:2018/Amd 2:2022)

Geotehnično preiskovanje in preskušanje - Laboratorijsko preskušanje zemljin - 12. del: Ugotavljanje meje tekočine in plastičnosti - Dopolnilo A2 (ISO 17892-12:2018/Amd 2:2022)

General Information

• Status: Published
• Publication Date: 15-Mar-2022
• Withdrawal Date: 29-Sep-2022
• ICS: 13.080.20 - Physical properties of soils
• ICS: 93.020 - Earthworks. Excavations. Foundation construction. Underground works
• Technical Committee: CEN/TC 341 - Geotechnical Investigation and Testing
• Drafting Committee: CEN/TC 341 - Geotechnical Investigation and Testing
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 16-Mar-2022
• Completion Date: 16-Mar-2022
• Ref Project: SIST EN ISO 17892-12:2018/A2:2022 - Geotechnical investigation and testing - Laboratory testing of soil - Part 12: Determination of liquid and plastic limits - Amendment 2 (ISO 17892-12:2018/Amd 2:2022)

Relations

• Amends: EN ISO 17892-12:2018 - Geotechnical investigation and testing - Laboratory testing of soil - Part 12: Determination of liquid and plastic limits (ISO 17892-12:2018)
• Effective Date: 05-May-2021

Overview

EN ISO 17892-12:2018/A2:2022 is an important European Standard published by CEN that specifies laboratory testing procedures for determining the liquid and plastic limits of soils. As part 12 of the ISO 17892 series on geotechnical investigation and testing, this amendment (Amendment 2) updates and refines the methodology to ensure more accurate and consistent evaluation of soil properties relevant to engineering and construction projects. The standard supports engineers and geotechnicians in accurately characterizing soil behavior, which is critical for foundation design, earthworks, and underground construction.

Key Topics

This amendment to ISO 17892-12:2018 incorporates important modifications focused on the classification and quality control of equipment used in liquid and plastic limit determination:

• Fall Cone Testing Equipment Specifications

  • Defines precise manufacturing tolerances for fall cones including mass, tip angle, height of the cone tip, and maximum permissible deviation from the geometrical tip.
  • Specifies two typical cone sets:
    • 60 g mass with 60° tip angle
    • 80 g mass with 30° tip angle

• Wear Limits and Maintenance

  • Establishes maximum allowable wear limits on cones: 0.3 mm for the 60 g/60° cone and 0.6 mm for the 80 g/30° cone.
  • Requires daily inspection before use, including sharpness checks against a specified gauge and visual inspection for surface finish to ensure no corrosion or damage.
  • Annual verification of cone mass, dimensions, and wear to maintain testing accuracy.

• Measurement and Calibration Methods

  • Provides standardized procedures for checking cone tip sharpness using metal plate gauges with defined hole diameters and thicknesses.
  • Ensures uniformity in test equipment, which leads to reproducible results essential for soil classification.

Applications

EN ISO 17892-12:2018/A2:2022 is widely applicable in the geotechnical engineering field, specifically for:

• Soil Classification and Behavior Analysis
  Determining the liquid and plastic limits is fundamental to classifying fine-grained soils and understanding their consistency, plasticity, and potential for shrinkage or swelling.

• Foundation Design and Earthworks
  Engineers use liquid and plastic limit data to evaluate soil suitability and stability for foundations, embankments, and retaining structures.

• Underground Works and Excavations
  Accurate soil limit data helps predict soil response during excavation and tunneling operations to mitigate risks of collapses or excessive deformation.

• Quality Control in Construction Materials
  Ensures compliance with project specifications requiring certain soil behavior characteristics, aiding in material selection and remediation planning.

This amendment reinforces the reliability of laboratory tests by improving equipment standards, thus enhancing overall geotechnical investigation quality.

Related Standards

For comprehensive geotechnical soil testing, EN ISO 17892-12:2018/A2:2022 should be considered along with other parts of the ISO 17892 series, including:

• EN ISO 17892-1 – General rules for sampling and laboratory testing of soils.
• EN ISO 17892-4 – Laboratory determination of grain size distribution.
• EN ISO 17892-5 – Determination of the specific gravity of soil solids.
• EN ISO 17892-9 – Laboratory determination of shear strength parameters.

These related standards collectively ensure a complete and standardized approach to geotechnical soil investigation and testing.

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Keywords: EN ISO 17892-12:2018/A2:2022, geotechnical investigation, soil testing, laboratory testing of soil, liquid limit, plastic limit, fall cone test, soil classification, foundation construction, earthworks, underground works, CEN standards, soil properties testing, cone tip wear, soil plasticity limits.

Standards Content (Sample)

SLOVENSKI STANDARD
01-maj-2022
Geotehnično preiskovanje in preskušanje - Laboratorijsko preskušanje zemljin -
12. del: Ugotavljanje meje tekočine in plastičnosti - Dopolnilo A2 (ISO 17892-
12:2018/Amd 2:2022)
Geotechnical investigation and testing - Laboratory testing of soil - Part 12:
Determination of liquid and plastic limits - Amendment 2 (ISO 17892-12:2018/Amd
2:2022)
Geotechnische Erkundung und Untersuchung - Laborversuche an Bodenproben - Teil
12: Bestimmung der Fließ- und Ausrollgrenzen - Änderung 2 (ISO 17892-12:2018/Amd
2:2022)
Reconnaissance et essais géotechniques - Essais de laboratoire sur les sols - Partie 12:
Détermination des limites de liquidité et de plasticité - Amendement 2 (ISO 17892-
12:2018/Amd 2:2022)
Ta slovenski standard je istoveten z: EN ISO 17892-12:2018/A2:2022
ICS:
13.080.20 Fizikalne lastnosti tal Physical properties of soils
93.020 Zemeljska dela. Izkopavanja. Earthworks. Excavations.
Gradnja temeljev. Dela pod Foundation construction.
zemljo Underground works
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 17892-
EUROPEAN STANDARD
12:2018/A2
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2022
ICS 13.080.20; 93.020
English Version
Geotechnical investigation and testing - Laboratory testing
of soil - Part 12: Determination of liquid and plastic limits -
Amendment 2 (ISO 17892-12:2018/Amd 2:2022)
Reconnaissance et essais géotechniques - Essais de Geotechnische Erkundung und Untersuchung -
laboratoire sur les sols - Partie 12: Détermination des Laborversuche an Bodenproben - Teil 12: Bestimmung
limites de liquidité et de plasticité - Amendement 2 der Fließ- und Ausrollgrenzen - Änderung 2 (ISO
(ISO 17892-12:2018/Amd 2:2022) 17892-12:2018/Amd 2:2022)
This amendment A2 modifies the European Standard EN ISO 17892-12:2018; it was approved by CEN on 1 February 2022.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for inclusion of
this amendment into the relevant national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This amendment exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 17892-12:2018/A2:2022 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 17892-12:2018/A2:2022) has been prepared by Technical Committee ISO/TC
182 "Geotechnics" in collaboration with Technical Committee CEN/TC 341 “Geotechnical Investigation
and Testing” the secretariat of which is held by BSI.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by September 2022, and conflicting national standards
shall be withdrawn at the latest by September 2022.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
Any feedback and questions on this document should be directed to the users’ national standards
body/national committee. A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
Endorsement notice
The text of ISO 17892-12:2018/Amd 2:2022 has been approved by CEN as EN ISO 17892-
12:2018/A2:2022 without any modification.

INTERNATIONAL ISO
STANDARD 17892-12
First edition
2018-06
AMENDMENT 2
2022-03
Geotechnical investigation and
testing — Laboratory testing of soil —
Part 12:
Determination of liquid and plastic
limits
AMENDMENT 2
Reconnaissance et essais géotechniques — Essais de laboratoire su
...