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prEN 13810-1 Viešoji apklausa

Komentavimo iki data 2026-01-20

Medienos skydai. Prie pagrindo netvirtinamos grindys. 1 dalis. Eksploatacinių charakteristikų specifikacijos ir reikalavimai

This document provides the performance specifications and requirements for wood-based panels used in continuously fully supported non-structural floating floors.

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prEN 14823 Viešoji apklausa

Komentavimo iki data 2026-01-13

Medienos ir medienos gaminių biologinis ilgaamžiškumas. Pentachlorfenolio kiekio medienoje kiekybinis nustatymas. Dujų chromatografijos metodas

This document specifies a laboratory method of determining the pentachlorophenol content of wood. The method is applicable to all types of pentachlorophenol (PCP) in woods and wood- based materials as well as for the analysis of waste timber with respect to its pentachlorophenol (PCP) content. The method described has a measurement range from 250 μg/kg up to pentachlorophenol (PCP) contents of 5 mg/kg of dry matter. These figures refer to the given example (where an aliquot of 1 ml of the extract is used for acetylation, see 9.4). NOTE 1 If lower quantification limits are required, a higher volume of extract aliquot can be used for derivatisation. NOTE 2 This method could have some modifications with some wood species as hardwoods. In general, in the case of complex matrix, a method using mass spectrometry is used.

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prEN 49-1 Viešoji apklausa

Komentavimo iki data 2025-12-16

Medienos konservantai. Apsaugos nuo Anobium punctatum (De Geer) efektyvumo nustatymas pagal kiaušinėlių dėjimą ir lervų išlikimą. 1 dalis. Paviršiaus apdorojimas (laboratorinis metodas)

This document 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: - water-insoluble chemicals that 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; - water-soluble materials, for example salts. The method is applicable whether or not the test specimens have been subjected to appropriate ageing procedures.

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prEN 46-2 Viešoji apklausa

Komentavimo iki data 2025-12-11

Medienos konservantai. Profilaktinio poveikio ką tik išsiritusioms Hylotrupes bajulus (Linnaeus) lervoms nustatymas. 2 dalis. Ovicidinis efektas (laboratorinis metodas)

This document 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.

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prEN 47 Viešoji apklausa

Komentavimo iki data 2025-12-11

Medienos konservantai. Toksiškumo Hylotrupes bajulus (Linnaeus) lervoms verčių nustatymas (laboratorinis metodas)

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: - 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; - water-soluble materials, for example salts. The method is applicable whether or not the test specimens have been subjected to appropriate ageing procedures.

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prEN 46-1 Viešoji apklausa

Komentavimo iki data 2025-12-11

Medienos konservantai. Profilaktinio poveikio ką tik išsiritusioms Hylotrupes bajulus (Linnaeus) lervoms nustatymas. 1 dalis. Naudojimas apdorojant paviršių (laboratorinis metodas)

This document 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; - water-soluble materials, for example salts. The method is applicable whether or not the test specimens have been subjected to appropriate ageing procedures.

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prEN 49-2 Viešoji apklausa

Komentavimo iki data 2025-12-11

Medienos konservantai. Apsaugos nuo Anobium punctatum (De Geer) efektyvumo nustatymas pagal kiaušinėlių dėjimą ir lervų išlikimą. 2 dalis. Įmirkymas (laboratorinis metodas)

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: - 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; - water-soluble materials, for example salts. The method is applicable whether or not the test specimens have been subjected to appropriate ageing procedures.

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