EN 16718:2015

Wood and wood based products - Dosage of the total organic carbon (TOC) in wood and wood based products

This European Standard describes a method for determining total organic carbon by calculating the difference between the results of measurements of total carbon (TC) and total inorganic carbon (TIC). The identification of the bio-based content given by the stable isotopes such as 13C is described also.
This method is applicable to all wood species, wood-based materials (panels, plywood, wood-polymer, etc.) and woods containing chemicals in general.

Holz und Holzprodukte - Bestimmung des gesamten organischen Kohlenstoffs (TOC) in Holz und Holzprodukten

Diese Europäische Norm beschreibt ein Verfahren zur Bestimmung des gesamten organischen Kohlenstoffs durch Berechnung der Differenz zwischen den Messergebnissen des gesamten Kohlenstoffs (TC) und des gesamten anorganischen Kohlenstoffs (TIC). Die Identifizierung des durch die stabilen Isotope, wie 13C, festgestellten biobasierten Gehalts wird ebenfalls beschrieben.
Dieses Verfahren ist für alle Holzarten, Holzprodukte (Platten, Sperrholz, Holzpolymer usw.) und die in Hölzern im Allgemeinen enthaltenen Chemikalien anwendbar.

Produits de préservation du bois et matériaux à base de bois - Dosage du carbone organique total (COT) dans les bois et matériaux à base de bois

La présente Norme européenne décrit une méthode de détermination du carbone organique total par calcul de la différence entre les résultats des mesures de carbone total (CT) et du carbone inorganique total (CI). Il décrit également l'identification du contenu biosourcé indiqué par les isotopes stables tels que 13C.
Cette méthode est applicable sur toutes les essences de bois, les matériaux à base de bois (panneaux, contre-plaqués, bois-polymères, etc.) et les bois contenant des produits chimiques en général.

Les in lesni proizvodi - Delež celotnega organskega ogljika (TOC) v lesu in lesnih proizvodih

Ta dokument opisuje metodo za ugotavljanje skupnega organskega ogljika z izračunom razlike med rezultati merjenja skupnega ogljika (TC) in skupnega anorganskega ogljika (TIC). Opisuje tudi identifikacijo biološke vsebine, ki jo podajajo stabilni izotopi, kot je 13C.
Metoda splošno velja za vse lesne vrste, materiale na osnovi lesa (plošče, vezan les, lesni polimer itd.) in les, ki vsebuje kemikalije.

General Information

• Status: Published
• Publication Date: 17-Nov-2015
• Withdrawal Date: 30-May-2016
• ICS: 79.060.01 - Wood-based panels in general
• Technical Committee: CEN/TC 38 - Durability of wood and derived materials
• Drafting Committee: CEN/TC 38/WG 26 - Physical/chemical factors (analytical methods)
• Current Stage: 9093 - Decision to confirm - Review Enquiry
• Completion Date: 18-Nov-2021
• Ref Project: SIST EN 16718:2016 - Wood and wood based products - Dosage of the total organic carbon (TOC) in wood and wood based products

Standards Content (Sample)

SLOVENSKI STANDARD
01-februar-2016
Les in lesni proizvodi - Delež celotnega organskega ogljika (TOC) v lesu in lesnih
proizvodih
Wood and wood based products - Dosage of the total organic carbon (TOC) in wood and
wood based products
Holz und Holzprodukte - Bestimmung des gesamten organischen Kohlenstoffs (TOC) in
Holz und Holzprodukten
Produits de préservation du bois et matériaux à base de bois - Dosage du carbone
organique total (COT) dans les bois et matériaux à base de bois
Ta slovenski standard je istoveten z: EN 16718:2015
ICS:
79.040 Les, hlodovina in žagan les Wood, sawlogs and sawn
timber
79.060.01 /HVQHSORãþHQDVSORãQR Wood-based panels in
general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 16718
EUROPEAN STANDARD
NORME EUROPÉENNE
November 2015
EUROPÄISCHE NORM
ICS 79.060.01
English Version
Wood and wood based products - Dosage of the total
organic carbon (TOC) in wood and wood based products
Produits de préservation du bois et matériaux à base Holz und Holzprodukte - Bestimmung des gesamten
de bois - Dosage du carbone organique total (COT) organischen Kohlenstoffs (TOC) in Holz und
dans les bois et matériaux à base de bois Holzprodukten
This European Standard was approved by CEN on 12 September 2015.

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
© 2015 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 16718:2015 E
worldwide for CEN national Members.

Contents Page
European foreword . 4
Introduction . 5
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 7
4 Principle . 7
5 Reagents and products . 8
6 Apparatus . 8
7 Procedure. 8
7.1 Preparation of the sample . 8
7.2 Water content . 8
7.3 Dosage . 9
7.3.1 General . 9
7.3.2 TC dosage . 9
7.3.3 TIC dosage . 9
7.4 Calibration . 9
7.5 Control measurements . 10
7.6 Evaluation . 10
7.7 C measurement by IRMS (Isotope Ratio Mass Spectrometer) . 11
7.7.1 Material and methods . 11
7.7.2 C isotope . 12
7.7.3 O isotope . 12
7.7.4 H isotope (Deuterium) . 12
7.7.5 N Isotopes . 12
13 18 2
7.7.6 Multi-isotopic determinations: C, O and H in wood and tree . 12
8 Performance characteristics . 13
9 Test report . 13
Annex A (informative) Results of the validation method . 14
A.1 General . 14
A.2 Response function . 14
A.2.1 General . 14
A.2.2 Total carbon . 15
A.2.3 Inorganic carbon . 16
A.3 Trueness . 17
A.3.1 General . 17
A.3.2 Total carbon . 18
A.3.3 Inorganic carbon . 18
A.4 Precision . 18
A.4.1 General . 18
A.4.2 Total carbon . 18
A.4.3 Inorganic carbon . 20
A.5 Measurement uncertainty . 21
A.5.1 General . 21
A.5.2 Total carbon. 21
A.5.3 Inorganic carbon . 22
A.6 Accuracy . 22
A.6.1 General . 22
A.6.2 Total carbon. 22
A.6.3 Inorganic carbon . 24
A.7 Linearity of results . 25
A.7.1 Total carbon. 25
A.7.2 Inorganic carbon . 26
A.8 Quantification limit and dosage interval . 27
A.8.1 Total carbon. 27
A.8.2 Inorganic carbon . 27
A.9 Conclusion . 27
Annex B (informative) Measurements on wood species and wood-based materials . 28
Bibliography . 29

European foreword
This document (EN 16718:2015) has been prepared by Technical Committee CEN/TC 38 “Durability of
wood and wood-based products”, the secretariat of which is held by AFNOR.
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 May 2016, and conflicting national standards shall be
withdrawn at the latest by May 2016.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent
rights.
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, 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 the United Kingdom.
Introduction
Bio-based products from forestry and agriculture have a long history of application. The last decades
have seen the emergence of new bio-based products in the market. Acknowledging the need for
common standards for bio-based products, the European Commission issued mandate M/492, resulting
in a series of standards developed by CEN/TC 411.
For business to business transactions, claims which are relevant to describe characteristics of bio-based
products in a business to business environment will be given in the near future. Data are by
consequence required to generate and transfer information in the industrial chain and/or as an input
for product specific standards and certification schemes.
The work to be done by the CEN/TC 411/WG 3 concerns the determination of the bio-based carbon in
order to determine the level of bio-
...