EN 14719:2005

Pulp, paper and board - Determination of the Diisopropylnaphthalene (DIPN) content by solvent extraction

This European Standard describes a method for the determination of the content of diisopropylnaphthalene (DIPN) in paper, board and pulp by solvent extraction. The content of diisopropylnaphthalene (DIPN) is expressed as mg of total diisopropylnaphthalene DIPN isomers per kilogram of paper, board or pulp. This test method is appropriate for the quantitative determination of the content of diisopropylnaphthalene (DIPN) with a limit of determination of about 0,6 mg/kg.

Faserstoff, Papier und Karton - Bestimmung des Gehaltes an Diisopropylnaphthalin (DIPN) mittels Lösemittelextraktion

Diese Europäische Norm beschreibt ein Prüfverfahren zur Bestimmung des Gehaltes an Diisopropylnaphthalin (DIPN) in Papier, Karton und Faserstoff mittels Lösemittelextraktion. Der Gehalt an Diisopropylnaphthalin (DIPN) wird in Milligramm Diisopropylnaphthalin-Isomere je Kilogramm Papier, Karton oder Faserstoff angegeben. Dieses Prüfverfahren ist für die quantitative Bestimmung des Gesamtgehaltes an Diisopropylnaphthalin (DIPN) mit einer Bestimmungsgrenze von etwa 0,6 mg/kg geeignet.

Pâtes, papiers et cartons - Détermination de la teneur en diisopropylnaphtalène (DIPN) par extraction au solvant

La présente Norme européenne décrit une méthode de détermination de la teneur des papiers, cartons et pâtes en diisopropylnaphtalène (DIPN) par extraction au solvant. La teneur en diisopropylnaphtalène (DIPN) est exprimée en mg d'isomères totaux de diisopropylnaphtalène (DIPN) par kilogramme de papier, carton ou pâte. Cette méthode d'essai permet d'effectuer une détermination quantitative de la teneur en diisopropylnaphtalène (DIPN) avec une limite de détermination de 0,6 mg/kg environ.

Vlaknine, papir in karton – Določevanje diisopropilnaftalena (DIPN) pri ekstrakciji s topilom

General Information

• Status: Published
• Publication Date: 09-Aug-2005
• Withdrawal Date: 27-Feb-2006
• ICS: 85.040 - Pulps
• ICS: 85.060 - Paper and board
• Technical Committee: CEN/TC 172 - Pulp, paper and board
• Drafting Committee: CEN/TC 172/WG 3 - Analytical methods for the assessment of paper and board in contact with foodstuffs
• Current Stage: 9093 - Decision to confirm - Review Enquiry
• Start Date: 15-Dec-2020
• Completion Date: 23-Sep-2025
• Ref Project: SIST EN 14719:2005 - Pulp, paper and board - Determination of the Diisopropylnaphthalene (DIPN) content by solvent extraction

Overview

EN 14719:2005 - published by CEN - specifies a laboratory method for the determination of Diisopropylnaphthalene (DIPN) in pulp, paper and board by solvent extraction followed by gas chromatography–mass spectrometry (GC‑MS). Results are reported as mg of total DIPN isomers per kilogram of sample. The method is designed for quantitative determination with a limit of determination of about 0.6 mg/kg and is intended to detect DIPN as an adsorbed or encapsulated contaminant (often occurring in recovered fibres).

Key Topics and Requirements

• Scope & reporting: DIPN content expressed as mg DIPN isomers/kg paper, board or pulp; applicable to adsorbed and encapsulated forms.
• Principle: Solvent extraction (acetone) of test pieces, addition of an internal standard, and analysis by GC‑MS using peak area ratios.
• Reagents & standards:
  • Diisopropylnaphthalene (technical mixture) as analyte standard.
  • Diethylnaphthalene (DEN) (≥97 % purity) as internal standard.
  • Acetone as extraction solvent.
• Sample preparation:
  • Test pieces (approx. 2.00 g) extracted in 25 ml acetone with internal standard, ~16 h soak plus ultrasonic bath.
  • Duplicate determinations recommended; include blank and control standard.
• Calibration & quantification:
  • Two calibration ranges recommended (0.05–1.0 mg/l and 1–10 mg/l equivalents).
  • Construct calibration by plotting DIPN/DEN peak area ratio vs mass of DIPN; correlation coefficient ≥ 0.996.
  • Example GC‑MS operating conditions and diagnostic ions provided (DIPN ions m/z 155, 197, 212; DEN m/z 169).
• Apparatus: GC‑MS with capillary column (example: 5% phenylmethyl siloxane, 30 m × 0.25 mm × 0.25 µm), ultrasonic bath, microsyringes, PTFE‑lined screw vials.
• Quality control: Blank checks for contamination, control standard recovery within ±8% of true value.

Applications and Users

• Quality control and contaminant monitoring in pulp and paper mills, especially those using recovered fibres.
• Analytical and contract laboratories performing regulatory or customer‑driven screening of paper, board and pulp for DIPN contamination.
• Environmental and safety assessments where DIPN presence needs quantification.
• Product compliance testing for recycled‑fiber products and packaging materials where contaminant transfer is a concern.

Related Standards (applicable)

• Other CEN/TC 172 standards for pulp, paper and board testing and European methods for solvent extraction and GC‑MS analysis. Laboratories should align EN 14719:2005 procedures with national implementations and relevant laboratory accreditation requirements.

Keywords: EN 14719:2005, DIPN, diisopropylnaphthalene, paper testing, pulp testing, solvent extraction, GC‑MS, diethylnaphthalene, CEN, limit of determination 0.6 mg/kg.

Standards Content (Sample)

SLOVENSKI STANDARD
01-december-2005
9ODNQLQHSDSLULQNDUWRQ±'RORþHYDQMHGLLVRSURSLOQDIWDOHQD',31SULHNVWUDNFLMLV
WRSLORP
Pulp, paper and board - Determination of the Diisopropylnaphthalene (DIPN) content by
solvent extraction
Faserstoff, Papier und Karton - Bestimmung des Gehaltes an Diisopropylnaphthalin
(DIPN) mittels Lösemittelextraktion
Pâtes, papiers et cartons - Détermination de la teneur en diisopropylnaphtalene (DIPN)
par extraction au solvant
Ta slovenski standard je istoveten z: EN 14719:2005
ICS:
85.040 Vlaknine Pulps
85.060 Papir, karton in lepenka Paper and board
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 14719
NORME EUROPÉENNE
EUROPÄISCHE NORM
August 2005
ICS 85.040; 85.060
English version
Pulp, paper and board - Determination of the
Diisopropylnaphthalene (DIPN) content by solvent extraction
Pâtes, papiers et cartons - Détermination de la teneur en Faserstoff, Papier und Karton - Bestimmung des Gehaltes
diisopropylnaphtalène (DIPN) par extraction au solvant an Diisopropylnaphthalin (DIPN) mittels
Lösemittelextraktion
This European Standard was approved by CEN on 27 June 2005.
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 Central Secretariat 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 Central Secretariat has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,
Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2005 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 14719:2005: E
worldwide for CEN national Members.

Contents
Foreword .3
1 Scope.4
2 Principle.4
3 Reagents.4
3.1 General.4
3.2 Standards.4
3.2.1 Diisopropylnaphthalene (DIPN) (technical mixture of isomers) .4
3.2.2 Diethylnaphthalene (DEN), with a purity of 97 % or more.4
3.3 Chemicals, Acetone.4

3.4 Calibration stock solutions.4
3.5 Internal standard stock solution.5
4 Apparatus and auxiliary aids .5
4.1 Gas chromatograph.5
4.2 Gas chromatograph analytical capillary column.5
4.3 Ultrasonic bath.6
4.4 Microsyringes, 100 µl, 250 µl.6
4.5 Graduated pipettes, 1 ml, 2 ml, 10 ml .6
4.6 40 ml screw top vials, with PTFE (polytetrafluorethylene) lined septa .6
5 Sampling.6
6 Preparation of test pieces .6
7 Calibration.6
7.1 Calibration standards.6
7.1.1 General.6
7.1.2 Calibration A.6
7.1.3 Calibration B.6
7.2 Blank value.7
7.3 Control standard.7

8 Procedure.7
8.1 GC-MS analysis.7
8.2 Calibration.7
8.3 Test piece analysis .7
8.3.1 Test piece extracts.7
8.3.2 Determination of DIPN.7
8.4 Evaluation of data .7
8.4.1 Interferences.7
8.4.2 Determination of the DIPN concentration in the test pieces.7
8.4.3 Calculation of the DIPN content in the paper.8
9 Precision.9
10 Test report.9
Bibliography.10

Foreword
This European Standard (EN 14719:2005) has been prepared by Technical Committee CEN/TC 172 "Pulp, paper
and board", the secretariat of which is held by DIN.
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 February 2006, and conflicting national standards shall be withdrawn at the latest
by February 2006.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark,
Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
1 Scope
This European Standard describes a method for the determination of the content of diisopropylnaphthalene (DIPN)
in paper, board and pulp by solvent extraction. The content of diisopropylnaphthalene (DIPN) is expressed as mg
of total diisopropylnaphthalene DIPN isomers per kilogram of paper, board or pulp. This test method is appropriate
for the quantitative determination of the content of diisopropylnaphthalene (DIPN) with a limit of determination of
about 0,6 mg/kg.
2 Principle
The content of total diisopropylnaphthalene (DIPN) is determined by solvent extraction of the paper, board or pulp
sample and analysed by gas chromatography with mass selective detection (GC-MS), using diethylnaphthalene as
an internal standard.
NOTE It may be worthwhile to state that diisopropylnaphthalene (DIPN) can be present as a contaminant in pulp, paper
and board. For the time being it cannot be avoided that diisopropylnaphthalene (DIPN) is present when using recovered fibres.
It may be present as either adsorbed onto the test piece or presen
...