Stavebnictví

Oblast zaměření: Tapety
Komise : CEN/TC 99 (Wallcoverings)
Původce: CEN
K připomínkám do: 2.04.2019
Zobraz více Zobraz méně
 

This document defines terms of interest to the users of wallcoverings that are supplied in roll form for hanging on to walls and ceilings by means of an adhesive.

This document also provides the necessary definitions and symbols for the purposes of other European Standards for wallcoverings (see references in 3.1).

Table 1 gives the symbols to be used.

Oblast zaměření: Požární zkoušky
Komise : CEN/TC 127 (Fire safety in buildings)
Původce: CEN
K připomínkám do: 9.04.2019
Zobraz více Zobraz méně
 

This document specifies a method for determining the fire resistance of horizontal service ducts and vertical service shafts, which pass through walls or floors and enclose pipes and cables. The test scenario examines the behaviour of ducts and shafts exposed to fire either from outside or inside the system. This document is intended to be read in conjunction with EN 1363-1:2012.

This document does not examine the risk of fire spread as a result of thermal conduction along the piping or cabling installed in service ducts or shafts or thermal conduction through the media these pipes carry. It does not cover the risk of damage produced by thermal elongation or shortening of tubes and cables as a result of fire or damaged pipe suspensions. This document does not give guidance on how to test one, two or three sided service ducts or shafts.

NOTE          Guidance on testing service ducts and shafts of less than four sides will be covered in the extended field of application rules being developed by CEN/TC 127.

This test applies to systems with boards and also for such systems with continuous covering with intumescent materials on the boards. It cannot be applied to systems where intumescent material is only applied in the range of the penetration.

This test is unsuitable for evaluating service ducts or shafts with internal barriers at walls and floors.

This test is unsuitable for evaluating fire protective systems for cable systems and associated components with maintenance of integrity in case of fire. This is covered by EN 1366-11: Fire protective systems for cable systems and associated components.

Whilst the walls of service ducts or shafts tested to this method provides specified levels of integrity or insulation, testing according this document does not replace the testing of the functional endurance of small electrical cables which is covered in EN 50200.

Fire resistance testing of ducts for air distribution systems is covered in EN 1366-1.

Oblast zaměření: Zděné konstrukce
Komise : CEN/TC 246 (Natural stones)
Původce: CEN
K připomínkám do: 9.04.2019
Zobraz více Zobraz méně
 

This document specifies a test method to assess the relative resistance of natural stones with an open porosity of greater than 5 %, measured in accordance with EN 1936, to damage caused by the crystallization of salts. The test is not necessary for low porosity stones.

Oblast zaměření: Stavební konstrukce
Komise : CEN/TC 250 (Structural Eurocodes)
Původce: CEN
K připomínkám do: 9.04.2019
Zobraz více Zobraz méně
 

Amendment

Oblast zaměření: Zděné konstrukce
Komise : CEN/TC 246 (Natural stones)
Původce: CEN
K připomínkám do: 9.04.2019
Zobraz více Zobraz méně
 

This document specifies a method to assess the sensitivity of natural stones when exposed to accidental staining. It defines a procedure for the application of the stains as well as the cleaning and the assessment of the surface appearance after cleaning. It also covers the possibility to assess the efficiency of a surface treatment. Note that the method does not intend to present any de-staining technique.

Oblast zaměření: Geotechnika
Komise : CEN/TC 396 (Earthworks)
Původce: CEN
K připomínkám do: 16.04.2019
Zobraz více Zobraz méně
 

This document gives recommendations for the hydraulic placement of extractive wastes and may be applicable to the following:

—    all stakeholders engaged in the deposition of mineral wastes using hydraulic placement techniques with respect to geotechnical and geochemical aspects of the investigation, engineering design, construction and operation of a mine waste facility and all subsequent monitoring activities;

—    those extractive industries involving the production of fine particulate wastes which, in the course of industrial processing, require to be stored in a safe, stable and environmentally acceptable location;

—    practitioners in non-extractive industries in fields where similar techniques may be applicable and for which no other European guidance exists.

The scope of this document includes all aspects of a dam, confining embankment or other structure serving to contain, retain, confine or otherwise support such wastes on surface in a terrestrial environment. The overall framework for the standard and for each stage of a hydraulic fill project is shown in Figure 3. This standard therefore addresses the characterization of the extractive waste for the purposes of hydraulic placement in the MWF both as part of the confining embankment and for safe storage and, in addition:

—    specifies minimum requirements for the data to be acquired before the design and execution stage of a hydraulic fill project;

—    provides guidelines for the selection of the type of confining embankment appropriate for the selected site;

—    provides guidelines for the selection and characterization of the construction materials;

—    establishes general principles on how to design and execute the hydraulic fill project from pre-deposition through operation to closure and rehabilitation;

—    provides guidelines for monitoring and quality control of all stages of the hydraulic fill project to ensure long-term safety and stability.

This document considers how to store safely a given material resulting from a preceding process.  It does not define, establish or specify detailed elements of the design of a hydraulic fill project but provides overall guidelines in order to comply with good regulatory and engineering practice. he document recognizes that similar techniques may be applicable to the hydraulic placement of materials in the non-extractive industries where no other European guidance exists, but notes that it is not applicable to landfill, dredging or the hydraulic filling aspects related to grouting.

Oblast zaměření: Požární ochrana
Komise : CEN/TC 191 (Fixed firefighting systems)
Původce: CEN
K připomínkám do: 16.04.2019
Zobraz více Zobraz méně
 

This document specifies requirements and gives recommendations for the design, installation, inspection and maintenance of fixed land based water mist systems.

This document is intended to apply to water mist automatic nozzle systems and water mist deluge systems supplied by stand alone or pumped systems.

The document covers only applications and occupancies which are covered by relevant fire test protocols.

Aspects of water mist associated with explosion protection and/or vehicles are not covered by this document.

This document does not cover all legislative requirements. In certain countries specific national regulations apply and take precedence over this document. Users of this document are advised to inform themselves of the applicability or non-applicability for this document by their national responsible authorities.

Oblast zaměření: Kamenivo
Komise : CEN/TC 154 (Aggregates)
Původce: CEN
K připomínkám do: 16.04.2019
Zobraz více Zobraz méně
 

This document specifies the nominal sizes of apertures for test sieves used for determination of particle size of aggregates.

It applies to

—    test sieves of perforated metal plate having square holes of size from 4 mm and up to 125 mm;

—    test sieves of metal wire cloth having apertures sizes below 4 mm down to 0,063 mm.

Oblast zaměření: Cement
Komise : CEN/TC 51 (Cement and building limes)
Původce: CEN
K připomínkám do: 30.04.2019
Zobraz více Zobraz méně
 

This document specifies the scheme for the assessment and verification of constancy of performance (AVCP) of cements, including certification of constancy of performance.

The document provides technical rules for factory production control, further testing of samples taken at the manufacturing plant (autocontrol testing) and assessment of the performance of the cement, initial inspection of the manufacturing plant and of factory production control, continuing surveillance, assessment and evaluation of factory production control and audit-testing of samples. It also provides rules for actions to be followed in the event of non-conformity and requirements for dispatching centres and for depots.

In this document, the word “cement” is used to refer both to common cements as defined in EN 197-1 and to other cements and binders for which the relevant product specification standard makes reference to this document and which are submitted for certification. Such a cement is produced at a given factory and belongs to a particular type and a particular strength class, as defined and specified in the relevant product specification standard.

The guidelines given in the Technical Report CEN/TR 14245 [4] contain information for the application of this document.

NOTE          The reason for having drafted this separate document is that the provisions it includes are applicable to different products covered by different European Standards.