Bygningsmaterialer og bygging

This document specifies a method for the energy assessment of domestic/sanitary hot water storage tanks of up to 2 000 l. Whilst this document does not cover water heaters intended primarily for direct heating, it does allow the provision of electric heating elements for auxiliary use. Primary heating buffer tanks are not covered by this document. Heat losses of domestic hot water storage tanks integrated into combi boilers marketed as a single unit are not covered by this document.

This European Standard covers single and double leaf, hinged and pivoted, steel based doorsets. It prescribes the methodology for extending the application of test results obtained from fire resistance test(s) conducted in accordance with EN 1634-1. Subject to the completion of the appropriate test or tests, the extended application may cover all or some of the following examples: - integrity (E), integrity/radiation (EW) or integrity/insulation (EI1 or EI2) classification; - door leaf; - ventilation grilles and/or louvres - wall/ceiling fixed elements (frame/suspension system); - glazing for door leaf, side, transom and flush over panels; - items of building hardware; - decorative finishes; - intumescent, smoke, draught or acoustic seals; - alternative supporting construction(s).

This document provides the product category rules (PCR) for Type III environmental declarations (as in EN 15804:2012+A2:2019+AC:2021) for factory made and in situ thermal insulation products. Complementary to EN 15804:2012+A2:2019+AC:2021, the PCR described in this document: - specify the declared unit to be used; - define the system boundaries for thermal insulation products; - specify/describe the default scenarios and rules for defining scenarios for certain life cycle information modules. These PCR are intended to be used for cradle to gate, cradle to gate with options or cradle to grave assessment, provided the intention is properly stated in the system boundary description.

Dette dokumentet inneholder overordnede bestemmelser og informasjon for de øvrige delene av NS 3420 i relevant omfang.

Dette dokumentet fastsetter differensierte kriterier for lydforhold og egenskaper for saler for musikkframføring med volum opptil 6500 m3. Kriteriene for lydforhold er differensiert ut fra tre musikkformer: lydsvak akustisk musikk, lydsterk akustisk musikk og forsterket musikk. Disse gjelder uavhengig av bygningstypen lokalene befinner seg i.Dette dokumentets kriterier er ikke beregnet brukt for større spesialiserte konsertsaler eller operasaler.

1.1 Scope of EN 12309 Appliances covered by this standard include one or a combination of the following: - gas-fired sorption chiller; - gas-fired sorption chiller/heater; - gas-fired sorption heat pump. This European Standard applies to appliances designed to be used for space heating or cooling or refrigeration with or without heat recovery. This European Standard applies to appliances having flue gas systems of type B and type C (according to CEN/TR 1749) and to appliances designed for outdoor installations. EN 12309 does not apply to air conditioners, it only applies to appliances having: - integral burners under the control of fully automatic burner control systems, - closed system refrigerant circuits in which the refrigerant does not come into direct contact with the water or air to be cooled or heated, - mechanical means to assist transportation of the combustion air and/or the flue gas. The above appliances can have one or more primary or secondary functions (i.e. heat recovery - see definitions in EN 12309 1:2014). In the case of packaged units (consisting of several parts), this European Standard applies only to those designed and supplied as a complete package. The appliances having their condenser cooled by air and by the evaporation of external additional water are not covered by EN 12309. Installations used for heating and/or cooling of industrial processes are not within the scope of EN 12309. All the symbols given in this text should be used regardless of the language used. 1.2 Scope of this Part 6 to EN 12309 This part of EN 12309 specifies the calculation methods of seasonal performances for gas-fired sorption appliances for heating and/or cooling with a net heat input not exceeding 70 kW. It deals in particular with the calculation methods of reference seasonal performances in cooling and heating mode for monovalent and bivalent appliances. NOTE This European Standard serves as an input for the calculation of the system energy efficiency in heating mode of specific heat pump systems in buildings, as stipulated in EN 15316-4-2.

This European Standard specifies the functional requirements and test methods for bidets used for domestic purposes and made from either ceramics or stainless steel. All drawings are examples only, other forms are permissible. NOTE For the purposes of this standard the term ‘domestic purposes‘ includes use in hotels, accommodation for students, hospitals and similar buildings, except when special medical provisions are required.

This European Standard specifies, the requirements and test methods concerning the classification and marking of gas-fired central heating boilers that are fitted with atmospheric burners, fan assisted atmospheric burners and are hereafter referred to as 'boilers'. Where the word boiler is used, this is to be read as the boiler including its connecting ducts, ducts and terminals, if any. This document is to be used in conjunction with FprEN 15502-1:2021 This European Standard covers gas-fired central heating boilers type B11, B11BS, B12, B12BS, B13, B13BS: NOTE For further background information on appliance types see EN 1749:2020 a) that have a nominal heat input (on the basis of net calorific value) not exceeding 70 kW; b) that use one or more combustible gases of the three gas families at the pressures stated in EN 437:2018; c) where the temperature of the heat transfer fluid does not exceed 105 °C during normal operation; d) where the maximum operating pressure in the water circuit does not exceed 6 bar; e) which are declared in the technical instructions to be either a 'low temperature boiler' or a 'standard boiler'. If no declaration is given the boiler is to be considered a 'standard boiler'; f) which are intended to be installed inside a building or in a partially protected place; g) which are intended to produce also hot water either by the instantaneous or storage principle, as a single unit. h) which are designed for either sealed water systems or for open water systems. For applications within the scope of the PED further requirements may be necessary (e.g. situations where the maximum allowable temperature exceeds 110 °C, or where volume times maximum allowable pressure is over 50 bar x litres). NOTE This standard provides requirements for boilers with known constructions. For boilers with any alternative constructions, which might not fully be covered by this standard, the risk associated with this alternative construction needs to be assessed. An example of an assessment methodology, based upon risk assessment, is given in Clause 11. This standard does not cover all the requirements for: i) appliances that are intended to be connected to gas grids where the quality of the distributed gas is likely to vary to a large extent over the lifetime of the appliance (see Annex AB); j) appliances using flue dampers; k) appliances that have a nominal heat input (on the basis of net calorific value) exceeding 70 kW; l) appliances of the types A, B14, B2, B3, B4, B5 and C; m) appliances intended to be connected to a (common) flue having mechanical extraction; n) appliances with gas/air ratio control; o) modular boilers; p) boilers which can give rise to condensation under certain circumstances; q) boilers intended to be installed in a room with a foreseeable negative pressure relative to the pressure in the flue system; r) surface temperatures of external parts particular to children and elderly people; s) appliances that are intended to burn natural gases of the second family where hydrogen is added to the natural gass; t) boilers intended to be installed in areas accessible to elderly people and children. NOTE Negative pressure relative to the pressure in the flue system can for example be caused by mechanical or thermal ventilation in airtight buildings.

This draft European standard is applicable to the physical and link layer parameters of baseband communication over twisted pair (M Bus) for meter communication systems. It is especially applicable to thermal energy meters, heat cost allocators, water meters and gas meters. NOTE It is usable also for other meters (like electricity meters) and for sensors and actuators. For generic descriptions concerning communication systems for meters and remote reading of meters see EN 13757-1.

This document specifies a method for identifying an admixture by infrared analysis (IR).

This document specifies definitions, characteristics and requirements for shrinkage reducing admixtures for use in concrete. It covers admixtures for plain, reinforced and prestressed concrete which are used in site mixed, ready mixed concrete and precast concrete. The performance requirements in this document apply to admixtures used in concrete of normal consistence. They may not be applicable to admixtures intended for other types of concrete such as semi dry and earth moist mixes. Provisions governing the practical application of admixtures in the production of concrete, i.e. requirements concerning composition, mixing, placing, curing etc. of concrete containing admixtures are not part of this document.