Durability of wood and wood-based products - Determination of emissions from preservative treated wood to the environment - Wooden commodities exposed in Use Class 3 (Not covered, not in contact with the ground) - Semi-field method

This European Standard specifies a method for determining the leaching of active ingredients or other compounds from preservative treated wood by a semi field method for Use Class 3 (outdoor above ground). The preservative treated wood can be tested with or without subsequently surface coating or other water-repellent treatment. The method is applicable to the testing of commercial or experimental preservatives or paint systems applied to non-durable timber by methods appropriate to commercial practice.

Dauerhaftigkeit von Holz und Holzprodukten - Abschätzung von Emissionen von mit Holzschutzmitteln behandeltem Holz an die Umwelt - Holzprodukte in Gebrauchsklasse 3 (nicht abgedeckt, ohne Erdkontakt) - Semi-Feldverfahren

Diese Europäische Norm legt ein Verfahren zur Bestimmung der Auswaschung von Wirkstoffen oder sonstigen Verbindungen aus dem mit Holzschutzmittel behandelten Holz durch ein Semi-Feldverfahren für Holzprodukte der Gebrauchsklasse 3 (nicht abgedeckt, ohne Erdkontakt) fest. Das mit Holzschutzmittel behandelte Holz kann mit oder ohne nachfolgende Oberflächenbeschichtung oder sonstige wasserabwei-sende Behandlung geprüft werden. Das Verfahren gilt für die Prüfung handelsüblicher oder experimenteller Holzschutzmittel oder Anstrichsysteme, die nach in der gewerblichen Praxis üblichen Verfahren auf nicht dauerhaftes Holz aufgetragen werden.

Durabilité du bois et des matériaux dérivés du bois - Détermination des émissions dans l'environnement du bois traité avec des produits de préservation - Produits de base en bois exposés à la classe d’emploi n° 3 (dans un endroit abrité, n'étant pas en contact avec le sol) - Méthode semi-terrain

La présente Norme européenne spécifie une méthode de détermination du délavage de matières actives ou d'autres composés issus du bois traité avec des produits de préservation par une méthode semi-terrain pour classe d'emploi 3 (à l'extérieur au-dessus du sol). Le bois traité avec des produits de préservation peut être soumis à essai avec ou sans revêtement de surface ou traitement hydrofuge ultérieur. La méthode s'applique à l'essai de produits de préservation ou de systèmes de peinture au stade commercial ou expérimental, appliqués sur des bois non durables par des méthodes adaptées aux pratiques du commerce.

Trajnost lesa in lesnih izdelkov - Določanje emisij iz zaščitenega lesa v okolje - Lesni izdelki, izpostavljeni  3. razredu uporabe (niso pokriti, niso v stiku s tlemi) - Delno terenska metoda

Standard CEN/TR 16663 navaja metodo za določevanje izpiranja aktivnih sestavin ali drugih spojin z zaščitenega lesa z delno terensko metodo za 3. razred uporabe (na prostem nad tlemi). Zaščiteni les se lahko preskuša z ali brez naknadnega površinskega premazovanja ali druge obdelave, ki les zaščiti pred vodo. Metoda se uporablja za preskušanje komercialnih in eksperimentalnih zaščitnih sredstev ali barvnih sistemov, ki se jih nanese na les z metodami, primernimi za komercialno prakso.

General Information

Status
Withdrawn
Publication Date
20-May-2014
Withdrawal Date
22-Nov-2016
Current Stage
9960 - Withdrawal effective - Withdrawal
Completion Date
23-Nov-2016

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SLOVENSKI STANDARD
SIST-TP CEN/TR 16663:2014
01-julij-2014

7UDMQRVWOHVDLQOHVQLKL]GHONRY'RORþDQMHHPLVLML]]DãþLWHQHJDOHVDYRNROMH

/HVQLL]GHONLL]SRVWDYOMHQLUD]UHGXXSRUDEH QLVRSRNULWLQLVRYVWLNXVWOHPL 

'HOQRWHUHQVNDPHWRGD
Durability of wood and wood-based products - Determination of emissions from
preservative treated wood to the environment - Wooden commodities exposed in Use
Class 3 (Not covered, not in contact with the ground) - Semi-field method
Dauerhaftigkeit von Holz und Holzprodukten - Abschätzung von Emissionen von mit

Holzschutzmitteln behandeltem Holz an die Umwelt - Holzprodukte in Gebrauchsklasse

3 (nicht abgedeckt, ohne Erdkontakt) - Semi-Feldverfahren

Durabilité du bois et des matériaux dérivés du bois - Détermination des émissions dans

l'environnement du bois traité avec des produits de préservation - Produits de base en

bois exposés à la classe d’emploi n° 3 (dans un endroit abrité, n'étant pas en contact

avec le sol) - Méthode semi-terrain
Ta slovenski standard je istoveten z: CEN/TR 16663:2014
ICS:
13.020.30 Ocenjevanje vpliva na okolje Environmental impact
assessment
79.040 Les, hlodovina in žagan les Wood, sawlogs and sawn
timber
SIST-TP CEN/TR 16663:2014 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST-TP CEN/TR 16663:2014
---------------------- Page: 2 ----------------------
SIST-TP CEN/TR 16663:2014
TECHNICAL REPORT
CEN/TR 16663
RAPPORT TECHNIQUE
TECHNISCHER BERICHT
May 2014
ICS 13.020.30; 71.100.50
English Version
Durability of wood and wood-based products - Determination of
emissions from preservative treated wood to the environment -
Wooden commodities exposed in Use Class 3 (Not covered, not
in contact with the ground) - Semi-field method

Durabilité du bois et des matériaux dérivés du bois - Dauerhaftigkeit von Holz und Holzprodukten - Abschätzung

Détermination des émissions dans l'environnement du bois von Emissionen von mit Holzschutzmitteln behandeltem

traité avec des produits de préservation - Produits de base Holz an die Umwelt - Holzprodukte in Gebrauchsklasse 3

en bois exposés à la classe d'emploi n° 3 (dans un endroit (nicht abgedeckt, ohne Erdkontakt) - Semi-Feldverfahren

abrité, n'étant pas en contact avec le sol) - Méthode semi-
terrain

This Technical Report was approved by CEN on 20 January 2014. It has been drawn up by the Technical Committee CEN/TC 38.

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 Ref. No. CEN/TR 16663:2014 E

worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
SIST-TP CEN/TR 16663:2014
CEN/TR 16663:2014 (E)
Contents Page

Foreword ..............................................................................................................................................................4

Introduction .........................................................................................................................................................5

1 Scope ......................................................................................................................................................6

2 Normative references ............................................................................................................................6

3 Description of the test method .............................................................................................................6

3.1 Principle ..................................................................................................................................................6

3.2 Quality criteria ........................................................................................................................................6

3.3 Wood preservative .................................................................................................................................6

3.4 Apparatus ...............................................................................................................................................7

3.4.1 Vessel for receiving water ....................................................................................................................7

3.4.2 Gutter, screws, hooks ...........................................................................................................................7

3.4.3 Weather station ......................................................................................................................................7

3.4.4 Wood working equipment .....................................................................................................................7

3.4.5 Condition chamber ................................................................................................................................7

3.4.6 Mixing vessel ..........................................................................................................................................7

3.4.7 Preservative treatment ..........................................................................................................................7

3.4.8 Balance ...................................................................................................................................................7

3.4.9 Kiln ..........................................................................................................................................................7

3.4.10 Safety equipment and protection clothing ..........................................................................................7

3.4.11 Refrigerator/Freezer ..............................................................................................................................8

3.4.12 Chemical analysis equipment ..............................................................................................................8

3.4.13 Exposure site .........................................................................................................................................8

3.4.14 Exposure weathering racks ..................................................................................................................8

3.5 Test specimens ......................................................................................................................................8

3.5.1 General ....................................................................................................................................................8

3.5.2 Species of wood.....................................................................................................................................8

3.5.3 Quality of wood and wood moisture content ......................................................................................8

3.5.4 Preparation of test specimens .............................................................................................................9

3.5.5 Number of test specimens ....................................................................................................................9

3.5.6 End seal ..................................................................................................................................................9

3.6 Procedure ...............................................................................................................................................9

3.6.1 Product under test .................................................................................................................................9

3.6.2 Treatment and handling of test specimens ........................................................................................9

3.6.3 Untreated controls (optional) ............................................................................................................ 10

3.6.4 Exposure test site ............................................................................................................................... 10

3.6.5 Duration of the test ............................................................................................................................. 10

3.6.6 Collection of the leachates ................................................................................................................ 11

3.6.7 Chemical analysis ............................................................................................................................... 11

3.7 Expression of results ......................................................................................................................... 11

4 Test report ........................................................................................................................................... 12

Annex A (informative) Test set-up and weather rack .................................................................................. 14

A.1 Vertical exposure ................................................................................................................................ 14

A.2 Horizontal exposure ........................................................................................................................... 16

Annex B (informative) Model treatments ..................................................................................................... 17

B.1 For preservative intended for superficial treatment ....................................................................... 17

B.2 For preservative intended for penetration treatment ...................................................................... 17

---------------------- Page: 4 ----------------------
SIST-TP CEN/TR 16663:2014
CEN/TR 16663:2014 (E)

Annex C (informative) Orientation of annual growth rings and accepted heartwood ............................. 18

Annex D (informative) Stability study ........................................................................................................... 19

Bibliography ...................................................................................................................................................... 20

---------------------- Page: 5 ----------------------
SIST-TP CEN/TR 16663:2014
CEN/TR 16663:2014 (E)
Foreword

This document (CEN/TR 16663:2014) has been prepared by Technical Committee CEN/TC 38 “Durability of

wood and wood-based products”, the secretariat of which is held by AFNOR.

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.

---------------------- Page: 6 ----------------------
SIST-TP CEN/TR 16663:2014
CEN/TR 16663:2014 (E)
Introduction

The leaching from preservative treated wood into the environment need to be quantified to enable an

environmental risk assessment to be made of the treated wood, e.g. according to the Biocidal Products

Regulation, 528/2012. This document describes a semi-field method for the determination of leachate from

preservative treated wood where the preservative treated wood is not covered and not in contact with the

ground or water (use class 3 according to EN 335).

The method is a semi-field procedure for obtaining water samples (leachate) from treated wood exposed out

of ground contact, during a natural exposure. The quantities of emissions in the leachate are related to the

surface area of the wood and may be used in scenarios for the environmental risk assessment of the treated

wood.

NOTE The leachate can also be tested for eco-toxicological effects (example: OECD 202 testing on Daphnia sp.).

---------------------- Page: 7 ----------------------
SIST-TP CEN/TR 16663:2014
CEN/TR 16663:2014 (E)
1 Scope

This Technical Report specifies a method for determining the leaching of active ingredients or other

compounds from preservative treated wood by a semi-field method for use class 3 (outdoor above ground).

The preservative treated wood can be tested with or without subsequently surface coating or other water-

repellent treatment. The method is applicable to the testing of commercial or experimental preservatives or

paint systems applied to timber by methods appropriate to commercial practice.
2 Normative references

The following documents, in whole or in part, are normatively referenced in this document and are

indispensable for its application. For dated references, only the edition cited applies. For undated references,

the latest edition of the referenced document (including any amendments) applies.

EN ISO 5667-3, Water quality - Sampling - Part 3: Preservation and handling of water samples (ISO 5667-3)

3 Description of the test method
3.1 Principle

Panels are treated, assembled and placed outdoors, out of ground contact and exposed to the normal

environmental and ecological factors which affect preservative treated wood so exposed in practice. The

rainwater is retained and the leachate is monitored by chemical analyses of the active ingredients and/or other

compounds.
3.2 Quality criteria

The validity of the analytical method for the substances in question should be determined before conducting

the test:
a) accuracy;
b) specificity;
c) limit of detection (LOD);
d) limit of quantification (LOQ);
e) precision

NOTE EN ISO 5667-3 may give guidance on the preservation and handling of water samples.

3.3 Wood preservative

The test report shall state the name and other designation of the preservative, and the trade or common name

of the active ingredient(s) as defined in the regulation n°528/2012.

Use of a coating is possible (identity and amount of coating used shall be stated in the test report).

---------------------- Page: 8 ----------------------
SIST-TP CEN/TR 16663:2014
CEN/TR 16663:2014 (E)
3.4 Apparatus
3.4.1 Vessel for receiving water

Laboratory brown glass flask or plastic jars with no impurities which can influence the active ingredient.

NOTE EN ISO 5667-3 gives the good practices to preserve water samples.
The brown glass flask or plastic jars shall be protected from heat and sunlight.

The capacity of the vessels depends on the exposure scenario. If the expected annual precipitation is

approximately 700 mm and the test set-up is placed horizontal 25 l containers are recommended. If the test

set-ups are exposed vertically 5 l containers are recommended.
3.4.2 Gutter, screws, hooks

All materials used to fix and support the panels and collect the rainwater shall be made of inert materials.

Stainless steel has been found to be suitable (see Annex A).
3.4.3 Weather station

A weather station capable of monitoring the quantity of rainfall, the wind direction and wind speed at the test

site shall be used.
3.4.4 Wood working equipment

Equipment capable of producing the desired finish of the surface; e.g. fine sawn or planed.

3.4.5 Condition chamber

Conditioning chamber, well ventilated, controlled at (20 ± 2) °C and (65 ± 5) % relative humidity.

3.4.6 Mixing vessel
3.4.7 Preservative treatment

Equipment suitable for carrying out vacuum, vacuum-pressure, immersion or surface treatment of specimens.

3.4.8 Balance
A balance capable of weighing to the nearest 0,1 g.
3.4.9 Kiln

A kiln suitable to dry the preservative treated timber after treatment and post treatment conditioning, if

required. The drying procedure shall follow recommendations from the supplier of the product under test.

3.4.10 Safety equipment and protection clothing
Appropriate for the test product, to ensure the safety of the operator.
---------------------- Page: 9 ----------------------
SIST-TP CEN/TR 16663:2014
CEN/TR 16663:2014 (E)
3.4.11 Refrigerator/Freezer

A refrigerator or freezer (minimum - 18°C) to store the leachate at low temperature to reduce degradation of

the substances to be analysed and the growth of organisms in the leachate. The storage procedure shall

follow recommendations from the supplier of the product under test or EN ISO 5667-3.

3.4.12 Chemical analysis equipment

Analytical equipment appropriate to determine the compounds of interest to be analysed in the leachate.

3.4.13 Exposure site

An open area, free from tall vegetation and not excessively influenced by industrial or agricultural pollution. No

obstacle to the rain has to exist. Distance to building should be précised in the test report.

3.4.14 Exposure weathering racks

The exposure racks, to which the panels are attached, should be robust to maintain the panels in the required

orientation for the duration of the test. Racks which have been found to be suitable are illustrated in Annex A.

3.5 Test specimens
3.5.1 General
The test specimens who make up t
...

SLOVENSKI STANDARD
kSIST-TP FprCEN/TR 16663:2013
01-november-2013

7UDMQRVWOHVDLQOHVQLKL]GHONRY'RORþDQMHHPLVLML]]DãþLWHQHJDOHVDYRNROMH

/HVQLL]GHONLL]SRVWDYOMHQLUD]UHGXXSRUDEH QLVRSRNULWLQLVRYVWLNXVWOHPL 

'HOQRWHUHQVNDPHWRGD
Durability of wood and wood-based products - Determination of emissions from
preservative treated wood to the environment - Wooden commodities exposed in Use
Class 3 (Not covered, not in contact with the ground) - Semi-field method
Dauerhaftigkeit von Holz und Holzprodukten - Abschätzung von Emissionen von mit

Holzschutzmitteln behandeltem Holz an die Umwelt - Holzprodukte in Gebrauchsklasse

3 (nicht abgedeckt, ohne Erdkontakt) - Semi-Feldverfahren

Durabilité du bois et des matériaux dérivés du bois - Détermination des émissions dans

l'environnement du bois traité avec des produits de préservation - Produits de base en

bois exposés à la classe d’emploi n° 3 (dans un endroit abrité, n'étant pas en contact

avec le sol) - Méthode semi-terrain
Ta slovenski standard je istoveten z: FprCEN/TR 16663
ICS:
13.020.30 Ocenjevanje vpliva na okolje Environmental impact
assessment
79.040 Les, hlodovina in žagan les Wood, sawlogs and sawn
timber
kSIST-TP FprCEN/TR 16663:2013 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
kSIST-TP FprCEN/TR 16663:2013
---------------------- Page: 2 ----------------------
kSIST-TP FprCEN/TR 16663:2013
TECHNICAL REPORT
FINAL DRAFT
FprCEN/TR 16663
RAPPORT TECHNIQUE
TECHNISCHER BERICHT
September 2013
ICS
English Version
Durability of wood and wood-based products - Determination of
emissions from preservative treated wood to the environment -
Wooden commodities exposed in Use Class 3 (Not covered, not
in contact with the ground) - Semi-field method

Durabilité du bois et des matériaux dérivés du bois - Dauerhaftigkeit von Holz und Holzprodukten - Abschätzung

Détermination des émissions dans l'environnement du bois von Emissionen von mit Holzschutzmitteln behandeltem

traité avec des produits de préservation - Produits de base Holz an die Umwelt - Holzprodukte in Gebrauchsklasse 3

en bois exposés à la classe d'emploi n° 3 (dans un endroit (nicht abgedeckt, ohne Erdkontakt) - Semi-Feldverfahren

abrité, n'étant pas en contact avec le sol) - Méthode semi-
terrain

This draft Technical Report is submitted to CEN members for Technical Committee Approval. It has been drawn up by the Technical

Committee CEN/TC 38.

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.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to

provide supporting documentation.

Warning : This document is not a Technical Report. It is distributed for review and comments. It is subject to change without notice and

shall not be referred to as a Technical Report.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels

© 2013 CEN All rights of exploitation in any form and by any means reserved Ref. No. FprCEN/TR 16663:2013: E

worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
kSIST-TP FprCEN/TR 16663:2013
FprCEN/TR 16663:2013 (E)
Contents Page

Foreword ..............................................................................................................................................................3

Introduction .........................................................................................................................................................4

1 Scope ......................................................................................................................................................5

2 Normative references ............................................................................................................................5

3 Description of the test method .............................................................................................................5

3.1 Principle ..................................................................................................................................................5

3.2 Quality criteria ........................................................................................................................................5

3.3 Wood preservative .................................................................................................................................5

3.4 Apparatus ...............................................................................................................................................6

3.5 Test specimens ......................................................................................................................................7

3.5.1 General ....................................................................................................................................................7

3.5.2 Species of wood.....................................................................................................................................7

3.5.3 Quality of wood and wood moisture content ......................................................................................7

3.5.4 Preparation of test specimens .............................................................................................................8

3.5.5 Number of test specimens ....................................................................................................................8

3.5.6 End seal ..................................................................................................................................................8

3.6 Procedure ...............................................................................................................................................8

3.6.1 Product under test .................................................................................................................................8

3.6.2 Treatment and handling of test specimens ........................................................................................8

3.6.3 Untreated controls (optional) ...............................................................................................................9

3.6.4 Exposure test site ..................................................................................................................................9

3.6.5 Duration of the test ................................................................................................................................9

3.6.6 Collection of the leachates ...................................................................................................................9

3.6.7 Chemical analysis ............................................................................................................................... 10

3.7 Expression of results ......................................................................................................................... 10

4 Test report ........................................................................................................................................... 10

Annex A (informative) Test set-up and weather rack ................................................................................... 12

A.1 Vertical exposure ................................................................................................................................ 12

A.2 Horizontal exposure ........................................................................................................................... 14

Annex B (informative) Model treatments ....................................................................................................... 15

B.1 For preservative intended for superficial treatment ....................................................................... 15

B.2 For preservative intended for penetration treatment ...................................................................... 15

Annex C (informative) Stability study ............................................................................................................. 16

Bibliography ..................................................................................................................................................... 17

---------------------- Page: 4 ----------------------
kSIST-TP FprCEN/TR 16663:2013
FprCEN/TR 16663:2013 (E)
Foreword

This document (FprCEN/TR 16663:2013) 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 document is currently submitted to the Technical Committee Approval.
---------------------- Page: 5 ----------------------
kSIST-TP FprCEN/TR 16663:2013
FprCEN/TR 16663:2013 (E)
Introduction

The emissions from preservative treated wood into the environment need to be quantified to enable an

environmental risk assessment to be made of the treated wood. This document describes a semi-field method

for the determination of emissions from preservative treated wood where the preservative treated wood is not

covered and not in contact with the ground or water.

The method is a semi-field procedure for obtaining water samples (leachate) from treated wood exposed out

of ground contact, during a natural exposure. The quantities of emissions in the leachate are related to the

surface area of the wood and may be used to calculate an emission rate in mg/m /day which can be used in a

scenario for the environmental risk assessment of the treated wood.

NOTE The leachate can also be tested for eco-toxicological effects (example: OECD 202 testing on Daphnia sp.).

---------------------- Page: 6 ----------------------
kSIST-TP FprCEN/TR 16663:2013
FprCEN/TR 16663:2013 (E)
1 Scope

This European Standard specifies a method for determining the leaching of active ingredients or other

compounds from preservative treated wood by a semi field method for Use Class 3 (outdoor above ground).

The preservative treated wood can be tested with or without subsequently surface coating or other water-

repellent treatment. The method is applicable to the testing of commercial or experimental preservatives or

paint systems applied to non-durable timber by methods appropriate to commercial practice.

2 Normative references

The following documents, in whole or in part, are normatively referenced in this document and are

indispensable for its application. For dated references, only the edition cited applies. For undated references,

the latest edition of the referenced document (including any amendments) applies.

EN ISO 5667-3, Water quality — Sampling — Part 3: Preservation and handling of water samples

(ISO 5667-3)
3 Description of the test method
3.1 Principle

Panels are treated, assembled and placed outdoors, out of ground contact and exposed to the normal

environmental and ecological factors which affect preservative treated wood so exposed in practice. The

rainwater is retained and the leachate is monitored by chemical analyses of the active ingredients and/or other

compounds.
3.2 Quality criteria

The validity of the analytical method for the substances in question should be determined before conducting

the test:
a) accuracy;
b) specificity;
c) limit of detection;
d) limit of quantification;
e) precision

NOTE Guidance on the preservation and handling of water samples according to EN ISO 5667-3.

3.3 Wood preservative

The identity of the preservative product used shall be stated in the test report. It shall state the name and

other designation of the preservative, and the trade or common name of the active ingredient(s), substances

of concern (as defined in the EU Directive 98/8/EC) or a generic description of co-formulates and the

composition expressed in terms of the mass fraction of each of the ingredients.

Use of a top coat is possible (identity and amount of top-coat used) shall be stated in the test report.

---------------------- Page: 7 ----------------------
kSIST-TP FprCEN/TR 16663:2013
FprCEN/TR 16663:2013 (E)
3.4 Apparatus
3.4.1 Vessel for receiving water.

Laboratory brown glass flask or plastic jars with no impurities which can influence the active ingredient.

Laboratory brown glass flasks are preferred when the preservative contains organic biocides and plastic jars

when the preservative contains inorganic biocides.
NOTE EN ISO 5667-3 gives the good practices to preserve water samples.
The brown glass flask or plastic jars shall be protected from heat and sunlight.

The capacity of the vessels depends on the exposure scenario. If the expected annual precipitation is

approximately 700 mm and the test set-up is placed horizontal 25 l containers are recommended. If the test

set-ups are exposed vertically 5 l containers are recommended.
3.4.2 Gutter, screws, hooks.

All materials used to fix and support the panels and collect the rainwater shall inert. (Stainless steel has been

found to be suitable (see Annex A).)
3.4.3 Weather station.

A weather station capable of monitoring the quantity of rainfall, the wind direction and wind speed at the test

site shall be used.
3.4.4 Wood working equipment.

Equipment capable of producing the desired finish of the surface; fine sawn or planed.

3.4.5 Condition chamber.

Conditioning chamber, well ventilated, controlled at (20 ± 2) °C and (65 ± 5) % relative humidity.

3.4.6 Mixing vessel.
A mixing vessel capable of containing minimum 50 l.
3.4.7 Preservative treatment.

Equipment suitable for carrying out vacuum, vacuum-pressure, immersion or surface treatment of specimens.

3.4.8 Balance.
A balance capable of weighing to the nearest 0,1 g.
3.4.9 Kiln.

A kiln suitable to dry the preservative treated timber after treatment and post treatment conditioning, if

required. The drying procedure shall follow recommendations from the supplier of the product under test.

3.4.10 Safety equipment and protection clothing.
Appropriate for the test product, to ensure the safety of the operator.
---------------------- Page: 8 ----------------------
kSIST-TP FprCEN/TR 16663:2013
FprCEN/TR 16663:2013 (E)
3.4.11 Refrigerator/Freezer.

A refrigerator or freezer (minimum - 18°C) to store the leachate at low temperature to reduce degradation of

the substances to be analysed and the growth of organisms in the leachate. The storage procedure shall

follow recommendations from the supplier of the product under test or EN ISO 5667-3.

3.4.12 Chemical analysis equipment.

Analytical equipment appropriate to determine the compounds of interest or the active substance to be

analysed in the leachate.
3.4.13 Exposure site.

An open area, free from tall vegetation and not excessively influenced by industrial or agricultural pollution.

3.4.14 Exposure weathering racks.

The exposure racks, to which the panels are attached, should be robust to maintain the panels in the required

orientation for the duration of the test. Racks which have been found to be suitable are illustrated in Annex A.

3.5 Test specimens
3.5.1 General

The test specimens who make up the test panel are representative or typical of commercial timber, and

exposed to mimic service exposure (e.g. vertical spruce shiplap cladding). Alternatively the test specimens

may be selected to be a ‘realistic worst case’ estimation of the emission for a wood preservative in

Use Class 3.
3.5.2 Species of wood

The wood species shall be typical of the wood species used for the efficacy testing of wood preservatives,

e.g. Pinus sylvestris (Linnaeus) (Scots pine).The percentage of sapwood on the exposed face of the panel

shall be stated in the test report.
Additional tests may be made u
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