LLZ - Les, lesni izdelki in zaščita lesa

This document specifies a test method to determine the top layer delamination of multilayer parquet elements according to EN 13489 with different structures, dimensions and adhesives for internal use as flooring, at the time of the first delivery of the product.
The document specifies 2 pre-treatments (PT1 and PT2) of the test specimens.
The test methods described in this document allow to determine the minimum top layer bonding quality, also for the use application on floor heating, and for the identification of bonding failure.
NOTE 1   For this application, the pre-treatments have proven to be suitable.
This document does not apply to the bonding quality of plywood if it is in use in the multilayer parquet construction.
NOTE 2   This standard doesn’t allow to estimate the compatibility of use in wet conditions.

This document specifies methods of measuring the geometrical characteristics of wood flooring and wood panelling and cladding elements.
This document does not specify sampling, which is intended to be found in the product standards or test methods and it does not apply to elements which are installed.

This document specifies a method of test for determining the natural durability of a timber against wood-destroying basidiomycetes cultured on a malt extract agar medium. The method is applicable to all timber species.
Furthermore this method can be used to test modified wood. The test method described in this document can be applied to specific wood species, commercial supplies of sawn timber, wood-based materials, wood treated with preservatives and modified wood, both thermally and chemically modified wood.
However, this document is not intended to determine the effectiveness of wood preservatives used to prevent decay.
NOTE 1 Determining the efficacy of wood preservatives used to prevent decay is the scope of EN 113-1. However, in addition to this and with some amendments, it might also be possible in some cases to test treated wood using the method described here.
NOTE 2 This method can be used in conjunction with an ageing procedure, for example EN 73 or EN 84.
Annex A (informative) contains a guidance on sampling.
Annex B (normative) contains some methods of sterilization.
Annex C (informative) contains information on the culture vessels.
Annex D (informative) contains an example of a test report.
Annex E (informative) contains information on the test fungi.
Annex F (informative) contains the assessment of the results.

This document specifies a method for determining the efficacy of wood preservatives applied to wood by
penetration treatment against wood destroying basidiomycetes cultured on a malt extract agar medium.
The method is applicable to formulated products or to their active ingredients.
NOTE This method can be used in conjunction with an ageing procedure, for example EN 73 or EN 84.
Annex A (informative) contains an example of a test report.
Annex B (informative) contains some methods of sterilization.
Annex C (informative) contains information on the test vessels.
Annex D (informative) contains information on test fungi.
Annex E (informative) contains a recommended but non-comprehensive list of optional fungi.

This document specifies a procedure for determination of accelerated formaldehyde release from
uncoated and coated wood-based panels using the gas analysis method. The procedure is also suitable
for the testing of other materials (e.g. edge bands, floor coverings, foams, foils, laminated wood
products, veneered wood products, coated wood products).

This document specifies a method for the leaching of test specimens of wood which are used in the testing of the biological efficacy of wood preservatives.
This standard is applicable to:
a)   the pre-conditioning of test specimens prior to their being subjected to a biological test ; or
b)   assessment of loss of effectiveness by comparing the performance in a biological test of treated test specimens subjected to this procedure with others that have not undergone any leaching procedure.
NOTE   The method may also be used for pre-conditioning of wood-based panel products which may or may not have received preservative treatment.

This document specifies an evaporative ageing procedure, applicable to test specimens of wood which have been previously treated with a wood preservative, in order to evaluate any loss of effectiveness when these test specimens are subsequently subjected to biological tests.

This document specifies a method for determining the performance of a preservative, applied to the upper surface of the mortar test specimens, in preventing the growth of dry rot through the treated mortar when exposed to the test fungus.
This method is only applicable to masonry fungicides applied as a true solution of the preservative in water or dilute oil in water emulsion. It is not applicable to rods, pastes and other similar preservative types. This method is applicable to preservatives applied to masonry by brushing, spraying and/or injection techniques or mixed into rendering and plastering mortar for masonry.

This European Standard specifies the minimum performance requirements in biological tests for products for curative uses against specific wood destroying organisms. It specifies the biological tests required together with the efficacy criteria to be achieved in each test.
Chemicals against insects can act according to their specific properties within a short time (fast acting) or only after a long period (slow acting or with a deferred effect). Different tests and efficacy requirements are needed for these various types of curative wood preservatives.
This European Standard is applicable to all wood preservative products supplied for application in liquid form for curative uses against attack by wood boring beetles. This European Standard is also applicable for products applied to prevent the growth of the dry rot fungus through masonry.
This European Standard is also applicable to products for curative uses supplied for application as pastes, solids or in capsule form but only where appropriate biological methods of test exist as published European Standards or as normative annexes to this European Standard.
NOTE 1   For re-testing after making variations in product formulation, guidance is given in Annex A.
NOTE 2   This standard is used as a reference document for the evaluation of efficacy of biocidal products PT8 (wood preservatives) in the framework of the European Regulation on Biocidal Products (EU) No 528/2012 (BPR).
This European Standard is not applicable to products used as fumigants.
This European Standard is also not applicable for determining whether specific curative products, used alone or in combination, are effective in conferring long-term protection against attack by wood destroying organisms. Preventive effectiveness can be determined using EN 599-1 but only for products that can be tested using the methods and interpretative procedures defined in EN 599-1.
Annex A (informative) contains a guidance on re-testing after making variations in product formulation.
Annex B (informative) contains some test recommendations for specific curative products against other insect species than Hylotrupes bajulus and Anobium punctatum.
Annex C (informative) contains a guidance for physical chemical properties.

This document specifies the characteristics of individual hardwood boards and pre-assembled hardwood boards with grooves and/or tongues for internal use as flooring. This document covers hardwood boards with or without surface coating.
This document does not cover solid parquet elements. (See Annex C).

This document specifies a method for the determination of the eradicant action of a surface application of a fast and a slow acting wood preservative product or a deferred acting wood preservative product on timber infested with larvae of Hylotrupes bajulus (Linnaeus).
This method is applicable to:
organic formulations, as supplied or as prepared in the laboratory by dilution of concentrates,
or
organic water dispersible formulations, as supplied or as prepared in the laboratory by dilution of concentrates,
or
water soluble products, for example, salts.
NOTE   An ageing procedure cannot be combined with this method.

This European Standard defines and specifies the relevant characteristics and the appropriate test methods to determine these characteristics for solid wood products to be used as panelling and cladding (including siding) for:
-   wall and ceiling panelling for internal use,
-   wall and ceiling cladding for external uses.
It provides for the assessment and verification of constancy of performance and the requirements for marking these products.
This European Standard does not cover panels intended for use as stiffening elements.
This European Standard does not cover suspended ceiling in wood panelling and cladding.
This European Standard does not cover the processes for treatment, surface coating or modification.
This European standard does not cover products which are produced from laminated layer section.
This European Standard covers treated, untreated and surface coated products, including those made of thermally or chemically modified wood, as well as finger jointed and edge glued products.
NOTE   Prescriptions for surface coating and treatment can be found in documents valid in the place of use.
This European Standard covers products in compliance with EN 14519, EN 15146 and EN 14951, and other solid timber products manufactured for use as panelling and cladding.

This document specifies a method, derived from the test, for determining the resistance to indentation of wood flooring.

This European Standard defines general terms relating to sawn timber and round timber used in European Standards.

This document specifies the requirements for softboards as defined in EN 316, with a density ≥ 230 kg/m3 to 400 kg/m3.
The values listed in this document relate to product properties but they are not characteristic values to be used in design calculations.
NOTE   Panels which are intended for use exclusively as thermal insulating products are covered by EN 13171.

This European Standard defines and specifies the relevant characteristics, requirements and appropriate test methods for determination of the suitability of floorings made with at least a top layer of lignified material other than wood for use as internal flooring including in fully enclosed public transport premises.
The European Standards for specific flooring products made of lignified material other than wood to which this European Standard applies, and which provide product definitions, requirements for dimensional tolerances and other technical specifications, are the following:
- Bamboo flooring products (EN YYYYY),
- Palm flooring products (EN ZZZZZ).
This European Standard provides also for the assessment and verification of constancy of performance and the requirements for marking these products.
This European Standard covers flooring products made of lignified material other than wood which may or may not be treated to improve their reaction to fire performance or their durability against biological agents.
This European Standard does not apply to:
- flooring products specifically manufactured for enhanced tactile and recognition,
- wood flooring products covered by EN 14342,
- laminate flooring products covered by EN 14041.

This European Standard defines terms and their definitions relating to wood flooring.

This European Standard specifies a method for determining the water uptake and the effectiveness of the drying process of solid wood, wood based materials or coated wood by means of water absorption and water vapour desorption. This European Standard lays down a method to assess the moisture dynamics of wooden products and indirectly their susceptibility to wood rot.

CCMC - addition of superseding note in the European Foreword

This Technical Specification describes a laboratory method for obtaining water samples from preservative treated wood exposed out of ground contact (wood held in the storage yard after treatment and which has been in conditions designed to simulate outdoor, out of ground contact situations), at increasing time intervals after exposure.

This European Standard specifies the methodology for measurement of features - in relation to wood structure, biological agencies and other damage - taken into account in the visual grading:
a)   for appearance - of sawn, processed and round timber;
b)   for serviceability - of sawn and processed timber (identified in EN 1611-1 as the integrity of the timber).
When the standard is applied the methodology of measurement used shall be stated.
It is not applicable to structural timber for which strength grading in accordance with EN 14081-1 is required.
This standard applies to hardwood and softwood sawn timber, both square edged and un-edged, to processed timber and to round timber.
It does not apply to tropical timber.

This European Standard defines a method of assessment of drying quality. It applies to a lot of dried sawn timber (surfaced or not). It applies to both softwood and hardwood with a thickness not greater than 100 mm.
The quality of drying is expressed in terms of target and average moisture content of the lot as well as defining the moisture content variation between individual pieces expressed as allowable upper and lower limits.
An option for specifying the degree of case-hardening is included.
NOTE 1   Other features related to drying, e.g. checking, distortions, stain, etc., are specified in documents for visual grading of sawn timber or in product specifications and are not covered by this document.
NOTE 2   In the following the term "sawn timber" is used for all dried timber covered by this the scope.

This European Standard specifies the characteristics of solid lamparquet products for internal use as flooring. It applies to elements. This European Standard does not apply to panels made from elements, for which the EN 13810-1 applies.
This European Standard covers products without surface treatment.

This European Standard describes the characteristics that fire-retardant treated wood products should exhibit in order that its fire-retardant properties will persist undiminished throughout the desired service life in the anticipated conditions of use.
The Standard prescribes the classification requirements for the durability of the reaction to fire performance of fire-retardant treated wood products to be used in interior and exterior end use conditions. The products shall initially meet required reaction to fire classification. For interior and exterior use, limited hygroscopicity shall be verified. In addition, products for exterior use shall meet the minimum durability of reaction to fire performance requirements specific to the end use.
The requirements are applicable to wood which has been treated during a production process with fire retardant product applied either by a penetration process or by a superficial process, such as with a film forming or intumescent fire retardant coating. The fire-retardant treated products may be coated with an ordinary paint.
Mechanical properties and biological durability of fire-retardant treated wood products are not covered by this European Standard.
Paints, coatings and varnishes intended to improve the reaction to fire performance of a construction product when incorporated in situ in the construction works, are covered by ETAG 028 [19].
This Standard may be used as a basis for an approval system.

This document specifies definitions, requirements and test methods for wood veneer floor coverings for internal use. It gives guidance for the evaluation of conformity of the products to the requirements of this standard. Wood-veneer floor coverings without finishing are excluded.

This European Standard specifies the characteristics of multi-layer parquet elements for internal use as flooring.

This European Standard specifies the surface requirements and dimensional tolerances for decorative melamine faced boards for interior use which are common for particleboards, extruded particleboards fibreboards and sandwich boards for furniture.
This standard does not apply to boards laminated with so called priming foils, finish foils, laminates according to EN 438-1.
This standard does not apply to laminate floor coverings.
Melamine faced wood-based boards in accordance with this standard may be referred to as MFB

This European Standard specifies test methods for the determination of characteristics of melamine faced boards (MFB) as defined in EN 14322.

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.

This European Standard gives guidance on methods for determining and classifying the durability of wood against biological wood-destroying agents, its permeability to water and its performance in use.
The methods can be applied either to individual wood species, batches of wood and wood-based materials.
This standard is not intended to test the efficacy of biocides.
The wood-destroying agents considered under in this standard are:
-   wood-destroying fungi (basidiomycete and soft-rot fungi);
-   beetles capable of attacking dry wood;
-   termites;
-   marine organisms.
Data on the biological durability of selected wood species considered of economic importance in European countries are presented in Annex B (informative), which also provides information relating to their geographical origin, density, sapwood width and treatability.
NOTE 1   The guidance on the durability classification appropriate for a particular use class is given in the EN 460 standard.
NOTE 2   Annex C (informative) provides a methodology allowing the classification of wood treatability
Wood durability is an important factor that influences service life of a wood product. This standard provides input to service life prediction of wood and wood-based products as it ranks durability against wood-destroying organisms of various wood species thereby allowing species of appropriate durability to be selected for a particular use class. It shall however be emphasized that the biological durability rating of wood species given in Annex B cannot be regarded as any guarantee of performance in service.
NOTE 3   There are many other factors influencing service life of a wood product, such as principles of good design, use conditions, climate, maintenance (…) and should be taken into consideration.

This document specifies a method for the determination of the toxic values of a wood preservative against the larvae of Hylotrupes bajulus (Linnaeus), introduced into wood treated previously by full impregnation. This method is applicable to: ¾ water-insoluble chemicals which are being studied as active insecticides; ¾ organic formulations, as supplied or as prepared in the laboratory by dilution of concentrates; ¾ organic water-dispersible formulations as supplied or as prepared in the laboratory by dilution of concentrates; ¾ water-soluble materials, for example salts. The method is applicable whether or not the test specimens have been subjected to appropriate ageing procedures.

This European Standard specifies the requirements for labelling wood preservative products according to their efficacy and suitability for use, for each of the five use classes defined in EN 335.
This European Standard is applicable to all wood preservative products supplied for application in liquid form for the preventive treatment of timbers (structural and non-structural) against wood-attacking fungi, wood-attacking insects and marine organisms as described in EN 1001 2 and EN 335. It is applicable to products for preventive treatments against fungi causing disfigurement (blue stain) of wood in service, only if this forms part of the overall preventive effectiveness of the product.
This European Standard is not applicable to wood preservative products supplied for application as pastes, solids or in capsule form because they cannot be tested without modification of the biological tests demanded in this standard. It does not apply either to wood preservative products for remedial (curative) treatments or to those applied to prevent fungi causing sap stain on green (unseasoned) timber.

This part of ISO 12460 specifies a desiccator method for the determination of the quantity of formaldehyde
emitted from particleboard, fibreboard, plywood, oriented strand board (OSB), and wooden laminated flooring.

This European Standard specifies a method for the determination of the preventive action of a wood preservative against recently hatched larvae of Hylotrupes bajulus (Linnaeus) when the preservative is applied as a surface treatment to wood. This method is applicable to: - water-insoluble chemicals which are being studied as active insecticides; - organic formulations, as supplied or as prepared in the laboratory by dilution of concentrates; - organic water-dispersible formulations as supplied or as prepared in the laboratory by dilution of concentrates; and - water-soluble materials, for example salts. The method is applicable whether or not the test specimens have been subjected to appropriate ageing procedures.

This European Standard specifies a method for the determination of the preventive action of a wood preservative against eggs of Hylotrupes bajulus (Linnaeus) when the preservative is applied as a surface treatment to wood. This method is applicable to: - water-insoluble chemicals which are being studied as active insecticides; - organic formulations, as supplied or as prepared in the laboratory by dilution of concentrates; - organic water-dispersible formulations as supplied or as prepared in the laboratory by dilution of concentrates; or - water-soluble materials, for example salts. The method is applicable whether or not the test specimens have been subjected to appropriate ageing procedures.

This European Standard specifies a method of test to determine the dimensional changes and warp of the elements of wood flooring and wood panelling and cladding.

This European Standard specifies a method for the determination of the protective effectiveness or the toxic values of a wood preservative against infestation by Anobium punctatum (De Geer) when the product is applied as a surface treatment to wood. This method is applicable to: ¾ water-insoluble chemicals which are being studied as active insecticides, ¾ organic formulations, as supplied or as prepared in the laboratory by dilution of concentrates, ¾ organic water-dispersible formulations as supplied or as prepared in the laboratory by dilution of concentrates, ¾ water-soluble materials, for example salts. NOTE This method may be used in conjunction with an ageing procedure, for example EN 73.

This document specifies an extraction method called the perforator method, to determine the formaldehyde content of unlaminated and uncoated wood-based panels.

This document 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.

This document specifies a method for the determination of the protective effectiveness or the toxic values of a wood preservative against Anobium punctatum (De Geer) by egg-laying and larval survival in wood which has been treated previously by full impregnation. This method is applicable to: ¾ water-insoluble chemicals which are being studied as active insecticides; ¾ organic formulations, as supplied or as prepared in the laboratory by dilution of concentrates;, ¾ organic water-dispersible formulations as supplied or as prepared in the laboratory by dilution of concentrates, and ¾ water-soluble materials, for example salts. NOTE This method may be used in conjunction with an ageing procedure, for example EN 73.

This European Standard specifies the requirements for plywood, as defined in EN 313 2, for both general purpose use (non-structural application) and structural application in dry, humid or exterior conditions. It also gives a classification system based on the bending properties.
NOTE 1   This European Standard is referenced in EN 13986 for construction applications.
This standard can be appropriately applied for all plywood, including overlaid and coated plywood, but it does not cover materials or processes used for overlaying or coating. Neither does it cover any materials or processes applied in relation to enhancement of biological durability.
NOTE 2   For additional guidance on biological durability and the potential need for preservative treatment, according to application and serviceability, reference can be made to CEN/TS 1099.
The values listed under Clause 4 relate only to product properties; they are not 'characteristic values' and are not to be used in design calculations.
NOTE 3   Characteristic values (i.e. for use in design calculation according to EN 1995–1–1) are given either in EN 12369–2 which is based on the classification system given in this standard or by the manufacturer based on testing according to EN 789, EN 1058 and ENV 1156.
Additional information on supplementary properties for certain applications is also given.

The scope of WG28 Performance Classification is expressed in this Technical Report:
Guidance on the determination of end use performance of wood products: utilization and improvement of existing test methods to estimate service life, in order to give input to the harmonized product standards dealing with the durability requirement of the CPD and future CPR.
This Technical Report brings together the evaluations and discussions to date that have occurred within CEN/TC38/WG28 Performance Classification.

This document defines wood-based panels for use in construction and specifies the relevant characteristics and the appropriate test methods to determine these characteristics for wood-based panels, unfaced, overlaid, veneered or coated:
-   for internal use as structural components in dry conditions ) ;
-   for internal (or protected external) use as structural components in humid conditions ) ;
-   for external use as structural components ) ;
-   for internal use as non-structural components in dry conditions1);
-   for internal (or protected external) uses as non structural components in humid conditions2);
-   for external use as non-structural components3);
-   for use as structural floor decking on joists in dry1) or humid2) or external3) conditions;
-   for use as structural roof decking on joists in dry1) or humid2) or external3) conditions;
-   for use as structural wall sheathing on studs in dry1) or humid2) or external3) conditions.
   It provides for the evaluation of conformity and the requirements for marking these products.
This document covers wood-based panels in the form of solid wood panels, LVL ) , plywood, OSB, particleboards (chipboards) either resin- or cement-bonded, wet process fibreboards (hardboards, medium boards, softboards) and dry process fibreboards (MDF) for use in construction. They may contain chemical agents to improve their reaction to fire and their resistance to biological attack, e.g. by fungi and insects.
This document is not intended to be applicable to wood-based panels for use in non-constructional applications.

This Technical Report gives guidance on the use of wood-based panels in structural applications as structural floor and roof decking on joists or structural wall sheathing on studs in accordance with EN 12871. It provides information on:
—   inspection at site;
—   transport and delivery;
—   handling;
—   stacking;
—   storage;
—   moisture content, conditioning and the effects of moisture;
—   cutting and machining;
—   selection;
—   installation.

This specifies a method for the determination of the relative protective effectiveness of a wood preservative when the product is applied as a treatment to wood in ground contact.

This European Standard specifies a method of test for the determination of the protective effectiveness of a wood preservative, applied to the surface of the wood, against wood destroying basidiomycetes cultured on an agar medium.
The method is applicable to all products which are to be applied by superficial application processes. This includes:
-   organic solvent-based wood preservatives; or
-   organic water-dispersible formulations, as supplied or as prepared in the laboratory by dilution of concentrates; or
-   water-soluble products; or
-   chemicals which are being studied as active ingredients for application by superficial processes.
NOTE   This method may be used in conjunction with an ageing procedure, for example EN 73.

This European standard specifies a method for determining the relative protective effectiveness against fungal decay of a wood preservative applied to wood, which is subsequently surface coated, and exposed out of contact with the ground. The method is applicable to the testing of commercial or experimental preservatives applied to non-durable timbers by methods appropriate to commercial practice and subsequently overcoated with a specified coating system. The method is applicable to products and processes used individually or in combination to prevent the development of the decay in wood

EN 326-2+A1 specifies methods for internal initial type testing (ITT) and internal factory production control (FPC) as well as external control of wood-based panels for their compliance with EN 13986 and other relevant product specifications. However, it may also apply, at the option of the manufacturer, to wood-based panels applied for non-construction purposes. This European Standard is not applicable for the assessment of compliance with specifications of panels comprised in consignments. In such cases, EN 326-3 applies. For internal factory production control, if required, methods for the assessment of conformity of batches and of production over longer periods are given. For external control, if required, methods for the initial inspection of a factory and initial type testing of a product, and for the surveillance of the factory production control, are given. In the factory production control small test pieces are used. The statistics of evaluation is based on normal distribution.

EN 16481 constitutes a frame standard for the design of timber stairs as well as wood- and wood based components used in stairs by calculation methods. Some calculation methods can be derived from testing results, for example CEN/TS 15680.This document specifies the design and the requirements for materials and components to be used in these calculation methods. It may be complemented by national application documents based on this standard. This European Standard applies to coated and uncoated components. This document covers load-bearing components such as strings, steps, risers, newels, handrails and balustrades. This document provides examples of calculations in part 2 (or Annex, see separate document N 283). The requirements for a timber stair are defined in the product standard, EN 15644. This document does not cover stairs that contribute to the overall stability of the works or the strength of the structure. This European Standard is valid for the verification of mechanical performance characteristics, usability and load-bearing capacity and their related durability. Other requirements, e.g. requirements for acoustic properties, are not covered by this standard. For the design, calculation and determination of not solely resting actions, additional requirements need to be taken into account. (to be checked). For the dimensioning with special reference to resistance to fire and earthquake/seismic action, additional requirements may be taken into account.

EN 599 specifies for each of the five use classes defined in EN 335-1, the biological tests required for evaluating the efficacy of wood preservatives for the preventive treatment of solid timber, together with the minimum ageing tests required for the respective use class. It provides the method for calculating the critical value of a preservative. The critical value is the value that shall be used to calculate the recommended retention of the preservative appropriate for specific service conditions. The critical value is not necessarily the recommended retention or the minimum retention level for the preservative. The wide range of hazards, exposure conditions and service life requirements across Europe make it necessary to allow for local considerations in the calculation of the required preservative retention; EN 351-1 provides for the critical value to be adjusted to take account of these factors. This part of EN 599 is applicable to all wood preservative products supplied for application in liquid form for the preventive treatment of timbers (structural and non-structural) against wood-attacking fungi, wood-attacking insects and marine borers as described in EN 335-1. However, it is applicable to products for preventive treatments against fungi causing disfigurement (blue stain) of wood in service if this forms part of the overall preventive efficacy of the product.