Suomen Standardisoimisliitto SFS

This European Standard specifies the minimum requirements for visors designed specifically to be used only with protective helmets, including but not limited to those conforming to EN 443, EN 14052, EN 16471 and EN 16473 as the situation dictates. These visors may be permanently fitted to, or removable from, the helmet. See the scope of the various helmet standards for applications.These visors are not intended to protect against smoke and gas /vapour hazards.Three types of visors in two forms are described in this document.The two forms are:- face guards provide both eye and face protection, and- eye guards that are shorter and effectively provide only eye protection.The three types are:- Visors for general use: Eye guards and face guards providing resistance and/or protection against mechanical, liquid chemical and basic physical hazards.- Visors with increased thermal performance: Face guards that additionally provide resistance and/or protection against higher than basic levels of heat and flame. This additional requirement is not applicable for eye guards.- Mesh visors: Eye guards and face guards that incorporate mesh oculars with defined levels of performance from EN 1731, and other additional mechanical requirements described in this standard.Visors for sporting use, those with corrective effect, and goggles used with a protective helmet are not covered by this standard.

This European Standard specifies a method for the detection of foods containing cellulose which have been treated with ionizing radiation, by analysing the electron spin resonance (ESR) spectrum, also called electron paramagnetic resonance (EPR) spectrum, of the food.Interlaboratory studies have been successfully carried out with pistachio nut shells, paprika powder and fresh strawberries. However, it has been shown that false positive results can appear when analysing bleached nuts. For further information, see Clause 7 on limitations.

This European Standard specifies a method for the detection of foods containing crystalline sugars which have been treated with ionizing radiation, by analysing the electron spin resonance (ESR) spectrum, also called electron paramagnetic resonance (EPR) spectrum, of the food.Interlaboratory studies have been successfully carried out on dried figs, dried mangoes, dried papayas and raisins.

This European Standard specifies the characteristics and performance requirements for tubing and hoses made of either rubber or plastics for use with commercial propane and commercial butane and mixtures thereof, in the vapour phase, for connection of appliances, from:- pressurized gas container to a regulating device,- pressurized gas container to an appliance,- regulating device to an appliance, and- regulating device to installation pipework,in environments of a temperature range from -30 °C to +70 °C. Working pressures are from 0 bar to 30 bar.Three classes are defined in Table 1 according to the maximum working pressures and minimum ambient temperatures.This European Standard only covers the tubing or hose part of assemblies. The assemblies themselves will be covered by EN 16436-2.This European Standard does not apply to hoses for:- welding purposes (see EN ISO 3821, EN 1327);- propulsion purposes;- LPG transfer purposes (see EN 1762).

This European Standard specifies the common requirements and test methods, as well as the classification, marking and energy labelling of gas-fired central heating boilers that are fitted with atmospheric burners, fan assisted atmospheric burners or fully premixed burners, and are hereafter referred to as “boilers”.This European Standard is to be used in conjunction with the specific Parts 2 (Part 2-1 and following ones).This European Standard applies to boilers of types B and C.NOTE For further background information on appliance types see CEN/TR 1749:2014 [1].a) that use one or more combustible gases of the three gas families at the pressures stated in EN 437;b) where the temperature of the water is below or above 105 °C during normal operation;c) where the maximum operating pressure in the water circuit does not exceed 6 bar;d) which can give rise to condensation under certain circumstances;e) which are declared in the instructions for installation to be either a "condensing" boiler or a "low temperature boiler" or a "standard boiler" or an "other boiler". If no declaration is given the boiler is to be considered both a "standard boiler" and an "other boiler";NOTE The Ecodesign Directive defines "other boilers", "low temperature boilers" and "condensing boilers". The Boiler Efficiency Directive defines "standard boilers", "low temperature boilers" and "condensing boilers". Depending on the legislation applied, a boiler can be both "a standard boiler" and an "other 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.This European Standard applies to boilers designed for sealed water systems or for open water systems.NOTE This general standard and the specific standards (see Part 2) provide requirements for boilers with known constructions. For boilers with any alternative constructions, which might not fully be covered by this standard or a specific standard, the risk associated with this alternative construction will need to be assessed.An example of an assessment methodology, based upon risk assessment, is given in Clause 11.This European Standard is not intended to cover appliances intended for connection 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 EE).This European Standard is not intended to cover appliances designed and constructed to burn gas containing toxic components.