Chemie a potravinářství

Oblast zaměření: Mléko
Komise : CEN/TC 92 (Water meters)
Původce: CEN
K připomínkám do: 3.02.2022
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This document specifies definitions, requirements and testing of additional functionalities for water meters, without metrological impact, in combination with Additional Functionality Devices (AFD) and in response to EU/EFTA Mandate M/441 EN. These AFDs are considered as “ancillary devices” as defined in EN ISO 4064‑1:2017 and EN ISO 4064‑4:2014.

This document does not cover the changing of metrological software within the meter or the upload/download of metrological software.

NOTE          A manufacturer can claim compliance only for additional functionalities described in this document. It is not mandatory that an AFD complies with all additional functionalities described herein.

Oblast zaměření: Hnojiva
Komise : CEN/TC 223 (Soil improvers and growing media)
Původce: CEN
K připomínkám do: 10.02.2022
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This document describes a method for the determination of and the dimensions measured of the bulk density of pre-shaped growing media.

In this document, “pre-shaped growing media”:

—    includes solid, regular shaped, stable growing media sold, which are ready for use as a growing media, where the dimensions and any corners are stable;

—    does not include plugs;

—    does not include solid growing media that has to be hydrated for it to form, varies in dimension with varying water content – for example, coir or peat slabs or growing bags.

Oblast zaměření: Laboratorní sklo
Komise : CEN/TC 332 (Laboratory equipment)
Původce: CEN
K připomínkám do: 10.02.2022
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This document is a product specification, giving performance requirements for fire safety storage cabinet to be used for the storage of flammable liquids. It is applicable to cabinets with a total internal volume of not greater than 2 m3, which may be free standing, restrained to a wall or mounted on plinth or castors.

It is not applicable to brick enclosures or walk-in storage rooms.

This document does not apply to any support frame or mechanism other than the base which is integral to the cabinet.

Requirements are given in respect of the construction of the fire safety storage cabinet and its capacity to resist fire conditions on the outside. A classification of fire safety storage cabinets is given, according to the level of fire resistance offered, and a type test is included, see Annex A.

The tests described in this document are type tests.

This document does not discriminate between different flammable liquids, which may have considerably different physical properties.

Attention is drawn to national regulations, which can apply with regards to the storage of flammable liquids.

Oblast zaměření: Lepidla
Komise : CEN/TC 193 (Adhesives)
Původce: CEN
K připomínkám do: 17.02.2022
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This document establishes a classification for phenolic and aminoplastic polycondensation adhesives according to their suitability for use for load-bearing timber structures in defined climatic exposure conditions, and specifies performance requirements for such adhesives for the factory manufacture or factory-like manufacturing conditions of load-bearing timber structures only.

This document only specifies the performance of an adhesive for use in an environment corresponding to the defined conditions.

The performance requirements of this document apply to the adhesive only, not to the timber structure. This document does not cover the performance of adhesives for on-site gluing (except for factory-like conditions) nor the production of wood-based panels, except solid wood panels, or modified and stabilized wood with considerably reduced swelling and shrinkage properties, e.g. such as acetylated wood, heat treated wood and polymer impregnated wood.

This document is primarily intended for the use of adhesive manufacturers and for the use in timber structures bonded with adhesives, to assess or control the quality of adhesives. The requirements apply to the type testing of the adhesives. Production control activities are outside the scope of this document.

Adhesives meeting the requirements of this document are adequate for use in a load-bearing timber structures, provided that the bonding process has been carried out according to an appropriate product standard.

Oblast zaměření: Lepidla
Komise : CEN/TC 193 (Adhesives)
Původce: CEN
K připomínkám do: 17.02.2022
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This document specifies a method for determining the effect on bond strength of damage to wood fibres caused by the action of acids from the adhesive or primer used in the gluing process during climatic cycling.

It is suitable for the following applications:

a)     for assessing the compliance of adhesives with EN 301, EN 15425 and EN 16254;

b)    for assessing the suitability and quality of adhesives for load-bearing timber structures;

c)     for determining if the adhesive after bonding has a damaging influence on the strength of the wood due to chemical action.

This test is intended primarily to obtain performance data for the classification of adhesives for load-bearing timber structures according to their suitability for use in defined climatic environments. This test is carried out on Norway spruce (Picea abies L.) or Beech (Fagus sylvatica L.).

This method is not intended for use to provide numerical design data and does not necessarily represent the performance of the bonded member in service.

Oblast zaměření: Lepidla
Komise : CEN/TC 193 (Adhesives)
Původce: CEN
K připomínkám do: 17.02.2022
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This document establishes a classification for emulsion polymerized isocyanate (EPI) adhesives according to their suitability for use in load-bearing timber products in defined climatic exposure conditions, and specifies performance requirements for such adhesives for the industrial manufacture of load-bearing timber products only.

The performance requirements of this document apply to the adhesives only, not to the timber products. This document does not cover the performance of adhesives for on-site gluing (except for factory-like conditions) nor the production of wood-based panels, except solid wood panels, or modified and stabilized wood with considerably reduced swelling and shrinkage properties, e.g. such as acetylated wood, heat treated wood and polymer impregnated wood.

This document is primarily intended for the use of adhesive manufacturers and for the use in timber products bonded with adhesives, to assess or control the quality of adhesives. This document only specifies the performance of an adhesive for use in an environment corresponding to the defined conditions.

Such an adhesive meeting the requirements of this document for its type is adequate for use in load-bearing timber products, provided that the bonding process has been carried out according to an appropriate product standard.

Oblast zaměření: Lepidla
Komise : CEN/TC 193 (Adhesives)
Původce: CEN
K připomínkám do: 17.02.2022
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This document establishes a classification for one component polyurethane (PUR) adhesives according to their suitability for use in load-bearing timber products in defined climatic exposure conditions; it specifies performance requirements for such adhesives for the factory manufacture or factory like manufacturing of load-bearing timber products only.

It also classifies “adhesive lines” where all the products within the line have almost identical physical/chemical properties and gluing performance, but different reactivity.

This document only specifies the performance of adhesives for use in an environment corresponding to the defined conditions.

The performance requirements of this document apply to the adhesives only, not to the manufactured timber products. This document does not cover the performance of adhesives for on-site gluing (except for factory-like conditions) nor the production of wood-based panels, except solid wood panels, or modified and stabilized wood with considerably reduced swelling and shrinkage properties, e.g. such as acetylated wood, heat treated wood and polymer impregnated wood.

This document is primarily intended for the use of adhesive manufacturers and for the use in timber products bonded with adhesives, to assess or control the quality of adhesives. The requirements apply to the type testing of the adhesives. Production control activities are outside the scope of this document.

Adhesives meeting the requirements of this document are adequate for use in load-bearing timber products, provided that the bonding process has been carried out according to an appropriate product standard.

This document does not address the classification and use of adhesives in combination with the spraying of water before or during the bonding process; see informative Annex C of this document.

This does neither allow nor forbid the use of adhesives in combination with spraying of water.