Surface active agents - Determination of total base nitrogen - Potentiometric titration

This European Standard specifies a method for the determination of total base nitrogen content in surface-active agents by potentiometric titration.

Grenzflächenaktive Stoffe - Bestimmung des Gehalts an Gesamt-Basenstickstoff - Potentiometrische Titration

Diese Europäische Norm legt ein Prüfverfahren zur Bestimmung des Gehalts an Gesamt-Basenstickstoff in grenzflächenaktiven Stoffen durch potentiometrische Titration fest.

Agents de surface - Détermination de la teneur en azote total basique - Titrage potentiométrique

La présente norme européenne spécifie une méthode de détermination de la teneur  en azote total basique dans les agents de surface par titrage potentiométrique.

Površinsko aktivne snovi - Določevanje celotnega bazičnega dušika - Potenciometrijska titracija

General Information

Status
Published
Publication Date
31-May-2002
ICS
71.100.40 - Surface active agents
Technical Committee
KDS - Cosmetics, chemical disinfectants and surface active agents
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
01-Jun-2002
Due Date
01-Jun-2002
Completion Date
01-Jun-2002
Ref Project
EN 13716:2001 - Surface active agents - Determination of total base nitrogen - Potentiometric titration

SIST EN 13716:2002 – Surface Active Agents: Determination of Total Base Nitrogen by Potentiometric Titration

Overview

SIST EN 13716:2002 is a European Standard developed by CEN (European Committee for Standardization) that specifies a reliable and precise analytical method for determining the total base nitrogen content in surface active agents. The test utilizes potentiometric titration with trifluoromethane sulfonic acid in glacial acetic acid to quantify nitrogen present in primary, secondary, and tertiary amines found in surfactants. This method ensures consistent evaluation of surface active agents, essential for quality control and formulation in various industrial applications.

Key Topics

  • Scope:
    The standard applies to the quantitative analysis of total base nitrogen concentration in surface-active agents, critical for assessing chemical composition and quality.
  • Principle:
    Potentiometric titration measures nitrogen by reacting amines with a strong acid (trifluoromethane sulfonic acid), enabling accurate detection through an inflection point on a titration curve.
  • Reagents and Apparatus:
    • Glacial acetic acid (100% purity)
    • Standardized trifluoromethane sulfonic acid solution (0.1 mol/L)
    • Analytical-grade tris(hydroxymethyl)aminomethane for titrant factor calibration
    • Laboratory titrator with combined glass pH electrode
  • Sample Preparation:
    Laboratory samples are handled according to ISO 607 guidelines to ensure representative test material.
  • Calculation of Results:
    Total nitrogen content is expressed as grams per 100 grams of sample, calculated based on titrant volume used and standardized solution concentration. Results are reported to two decimal places for accuracy.
  • Precision and Reliability:
    The standard defines repeatability and reproducibility limits validated through interlaboratory ring tests, ensuring method repeatability within and across laboratories.

Applications

  • Quality Control in Detergent Manufacturing:
    Accurate nitrogen determination helps verify surfactant quality and consistency in detergents and cleaning products.
  • Industrial Chemical Analysis:
    Applicable in chemical industries producing emulsifiers, dispersants, and wetting agents containing nitrogenous bases.
  • Environmental and Safety Testing:
    Monitoring nitrogen content in surface active agents supports compliance with regulatory and safety standards.
  • Research and Development:
    Facilitates formulation optimization for new surfactant products by providing precise nitrogen quantification.

Related Standards

  • ISO 607: Surface Active Agents and Detergents – Methods of Sample Division
    Supports sample preparation methodology to ensure representative and uniform test samples.
  • Other CEN Standards on Surface Active Agents
    Various related CEN standards cover additional surfactant properties and analytical methods, complementing EN 13716.
  • Analytical Techniques for Nitrogen Determination
    Alternate potentiometric methods using perchloric acid are recognized as equivalent for titration purposes.

Keywords: EN 13716, surface active agents, total base nitrogen, potentiometric titration, nitrogen determination, CEN standard, trifluoromethane sulfonic acid, surfactants analysis, quality control, chemical testing, detergent industry standards, reproducibility, analytical chemistry.

Frequently Asked Questions

SIST EN 13716:2002 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Surface active agents - Determination of total base nitrogen - Potentiometric titration". This standard covers: This European Standard specifies a method for the determination of total base nitrogen content in surface-active agents by potentiometric titration.

This European Standard specifies a method for the determination of total base nitrogen content in surface-active agents by potentiometric titration.

SIST EN 13716:2002 is classified under the following ICS (International Classification for Standards) categories: 71.100.40 - Surface active agents. The ICS classification helps identify the subject area and facilitates finding related standards.

You can purchase SIST EN 13716:2002 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of SIST standards.

Standards Content (Sample)


2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Grenzflächenaktive Stoffe - Bestimmung des Gehalts an Gesamt-Basenstickstoff - Potentiometrische TitrationAgents de surface - Détermination de la teneur en azote total basique - Titrage potentiométriqueSurface active agents - Determination of total base nitrogen - Potentiometric titration71.100.40Površinsko aktivna sredstvaSurface active agentsICS:Ta slovenski standard je istoveten z:EN 13716:2001SIST EN 13716:2002en01-junij-2002SIST EN 13716:2002SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 13716December 2001ICS 71.100.40English versionSurface active agents - Determination of total base nitrogen -Potentiometric titrationAgents de surface - Détermination de la teneur en azotetotal basique - Titrage potentiométriqueGrenzflächenaktive Stoffe - Bestimmung des Gehalts anGesamt-Basen-Stickstoff - Potentiometrische TitrationThis European Standard was approved by CEN on 11 November 2001.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the 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 translationunder the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2001 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 13716:2001 ESIST EN 13716:2002

Instrument settings.7Annex B (informative)
Typical titration curve.8Annex C (informative)
Results of interlaboratory test.9SIST EN 13716:2002
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.

Loading comments...