Test method for the determination of the degree of soil acidity according to Baumann-Gully

This European Standard specifies the procedure for the determination of the degree of acidity of a soil to be used for evaluating its class of aggressiveness to EN 206. The degree of acidity according to Baumann-Gully is the result of the determination of exchangeable hydrogen ion concentration that humic particles of a soil release.

Prüfverfahren zur Bestimmung des Säuregrades eines Bodens nach Baumann-Gully

Diese Europäische Norm legt das Verfahren zur Bestimmung des Säuregrades eines Bodens fest, der zur Ein-stufung des Bodens in die entsprechende Expositionsklasse nach EN 206 verwendet werden soll. Der Säuregrad nach Baumann-Gully ist das Ergebnis der Bestimmung der Konzentration an austauschbaren Wasserstoff¬ionen, die von den Humusbestandteilen eines Bodens freigesetzt werden.

Méthode d'essai pour la détermination du degré d'acidité des sols selon Baumann-Gully

La présente Norme européenne décrit la méthode de détermination du degré d’acidité d’un sol à utiliser pour évaluer sa classe d’agressivité selon l’EN 206. Le degré d’acidité selon Baumann-Gully est un mesurage de la teneur en ions hydrogène échangeables que les éléments humiques d’un sol peuvent dégager.

Preskusna metoda za ugotavljanje stopnje kislosti tal po Baumann-Gullyju

Standard EN 16502 določa postopek za ugotavljanje stopnje kislosti tal, ki se uporablja pri ocenjevanju njenega razreda agresivnosti za EN 206. Stopnja kislosti po Baumann-Gullyju je rezultat ugotavljanja koncentracije zamenljivih vodikovih ionov, ki jih sproščajo huminski delci v tleh.

General Information

Status
Published
Public Enquiry End Date
27-Feb-2013
Publication Date
14-Oct-2014
ICS
13.080.10 - Chemical characteristics of soils
Technical Committee
BBB - Concrete, reinforced concrete and prestressed concrete
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
02-Sep-2014
Due Date
07-Nov-2014
Completion Date
15-Oct-2014
Ref Project
EN 16502:2014 - Test method for the determination of the degree of soil acidity according to Baumann-Gully

Overview

EN 16502:2014 is a CEN European Standard that specifies a laboratory test method for the determination of the degree of soil acidity according to Baumann‑Gully. The result (SABG) quantifies the exchangeable hydrogen ion concentration released from humic particles and is expressed as millilitres of sodium hydroxide solution per kilogram of dried soil. This measure is used when evaluating soil aggressiveness for concrete in accordance with EN 206.

Key topics and requirements

  • Scope: Procedure for determining soil acidity (Baumann‑Gully) to assess aggressiveness to concrete.
  • Principle: Reaction of dried soil with sodium acetate (≈1 mol/l) to form acetic acid; neutralization by titration with sodium hydroxide (≈0.1 mol/l). SABG = 2 × V1 / msample (V1 in ml of NaOH used; msample in kg).
  • Sample handling:
    • Laboratory samples: 1–2 kg for undisturbed layers; sampling methods per EN ISO 22475‑1 or ISO 10381‑2 for disturbed soils.
    • Drying: 40 ± 5 °C until constant mass (or up to 105 ± 5 °C if required).
    • Sieving: 2 mm sieve (ISO 3310‑1) and use the fraction passing the sieve as the test sample.
  • Test portion and reagents:
    • Test portion typically (100 ± 1) g mixed with (200 ± 1) ml sodium acetate solution.
    • Filter and titrate half the filtrate with NaOH using phenolphthalein or equivalent indicator.
    • Reagent quality and water conductivity requirements are specified.
  • Apparatus: Standard laboratory glassware (class A volumetrics), balances (±0.01 g), oven, magnetic stirrer, filter papers.
  • Reporting: Test report must reference EN 16502 and record sampling location, sample type, masses, titration volume, calculated SABG, deviations, and responsible analyst.
  • Precision: No inter-laboratory precision data are provided in the standard.

Applications and users

EN 16502 is practical for:

  • Concrete technologists and specifiers assessing environmental aggressiveness of soils for EN 206 compliance.
  • Geotechnical and materials testing laboratories performing soil chemistry analyses.
  • Infrastructure and civil engineers evaluating long‑term durability risks to buried or ground‑contact concrete structures.
  • Environmental consultants and research organizations studying soil‑organic interactions and acidity.

Keywords relevant for SEO: EN 16502, soil acidity test, Baumann‑Gully, soil aggressiveness, EN 206, sodium acetate titration, exchangeable hydrogen ion, soil testing standard.

Related standards

  • EN 206 - Concrete - Specification, performance, production and conformity
  • EN ISO 385, EN ISO 1042 - Laboratory glassware
  • ISO 3310‑1 - Test sieves
  • ISO 11074 - Soil quality vocabulary
  • EN ISO 22475‑1, ISO 10381‑2 - Soil sampling guidance
  • EN ISO 3696 - Water for analytical use
  • DIN 4030‑2 - Related method basis and background

This summary helps lab managers, engineers and specifiers understand what EN 16502:2014 covers, the essential test steps, and when to use the Baumann‑Gully soil acidity measurement in durability assessments.

Frequently Asked Questions

SIST EN 16502:2014 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Test method for the determination of the degree of soil acidity according to Baumann-Gully". This standard covers: This European Standard specifies the procedure for the determination of the degree of acidity of a soil to be used for evaluating its class of aggressiveness to EN 206. The degree of acidity according to Baumann-Gully is the result of the determination of exchangeable hydrogen ion concentration that humic particles of a soil release.

This European Standard specifies the procedure for the determination of the degree of acidity of a soil to be used for evaluating its class of aggressiveness to EN 206. The degree of acidity according to Baumann-Gully is the result of the determination of exchangeable hydrogen ion concentration that humic particles of a soil release.

SIST EN 16502:2014 is classified under the following ICS (International Classification for Standards) categories: 13.080.10 - Chemical characteristics of soils. The ICS classification helps identify the subject area and facilitates finding related standards.

SIST EN 16502:2014 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.

Standards Content (Sample)


2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Preskusna metoda za ugotavljanje stopnje kislosti tal po Baumann-GullyjuPrüfverfahren zur Bestimmung des Säuregrades eines Bodens nach Baumann-GullyMéthode d'essai pour la détermination du degré d'acidité des sols selon Baumann-GullyTest method for the determination of the degree of soil acidity according to Baumann-Gully13.080.10Chemical characteristics of soilsICS:Ta slovenski standard je istoveten z:EN 16502:2014SIST EN 16502:2014en,fr,de01-november-2014SIST EN 16502:2014SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 16502
August 2014 ICS 13.080.10 English Version
Test method for the determination of the degree of soil acidity according to Baumann-Gully
Méthode d'essai pour la détermination du degré d'acidité des sols selon Baumann-Gully
Prüfverfahren zur Bestimmung des Säuregrades eines Bodens nach Baumann-Gully This European Standard was approved by CEN on 18 July 2014.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a 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 European Standard 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, 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:
Avenue Marnix 17,
B-1000 Brussels © 2014 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 16502:2014 ESIST EN 16502:2014

SABG indicates the hydrolytic acidic level of a soil, expressed as the volume of solution of sodium hydroxide, in millilitres (ml) used per kilogram (kg) of dried soil 3.2 undisturbed sample bulk sample obtained from the soil using a method designed to preserve the soil structure 3.3 disturbed sample bulk sample, obtained from the soil without any attempt to preserve the soil structure 3.4 laboratory sample reduced sample derived from a bulk sample
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