Hovedemner

This document specifies a screening test method for determining the resistance of geotextiles and geotextile-related products to hydrolysis by exposing test specimens to water at elevated temperatures, followed by an evaluation of the changes in properties resulting from such exposure. It is intended as a means of establishing a minimum acceptable level of durability. The test is applicable to any geotextile and geotextile-related product susceptible to hydrolysis, in particular polyester and polyamide based materials, and in addition to the yarns from which these geotextiles are made. This method is not intended for determining the resistance of geotextiles to hydrolysis under highly acid or alkaline conditions. NOTE Performance tests to predict long-term lifetime or to compare products of different polymers or of similar polymers with differing structures can be based on the same method but with a wider range of temperatures and durations.

This document specifies requirements for design, construction, testing and marking of hand-held, portable and transportable vacuum cleaners, including their accessories, constructed to Group II G (of explosion groups IIA, IIB and hydrogen) categories 2 and 3, and Group II D categories 2 and 3, intended for the collection of combustible or non-combustible dusts and flammable or non-flammable liquids in potentially explosive atmospheres. A potentially explosive atmosphere could be generated by the equipment during its intended use. It covers equipment driven by electricity and by pneumatic power. This document deals with all significant hazards, hazardous situations and events relevant to vacuum cleaners when they are used as intended and under conditions of misuse which are reasonably foreseeable by the manufacturer. Typical applications for the concerned equipment are: — Collection of dust produced by machinery at the point of generation; — General housekeeping around machinery and of working areas; and/or — Collection of spills. For other specific applications, a specific assessment willl be performed. This document does not cover equipment used to collect toxic dusts where there is a health risk if dust passes through the filter elements. This document does not cover either the collection of dusts which have explosive and unstable properties (UN transport class 1, class 4.1 and class 5.2). This document covers vacuum cleaners with an internal dirty air volume of max. 250 l. This document does not apply to vacuum trucks. This document does not apply to applications where the material is conveyed into a separate receiving container. This document does not apply to Group I vacuum cleaners for mining. For an easier readability, all types of equipment concerned by this document are referred as “Vacuum cleaner”.

This document specifies the safety, construction and performance requirements for thermoelectric flame supervision devices, energized by a thermocouple intended for use with gas burners, gas appliances and similar use, hereafter referred to as “controls”. This document is applicable to controls with declared maximum inlet pressures up to and including 500 kPa (5 bar) of nominal connection sizes up to and including DN 50 for use with one or more fuel gases in accordance with EN 437. This document is not applicable to: a) the thermocouple; b) controls which use auxiliary energy (e.g. electrical energy supplied externally).

This European Standard specifies the safety, design, construction, and performance requirements and testing for gas filters for burners and appliances burning one or more gaseous fuels. This European Standard is applicable to: — gas filters with declared maximum inlet pressure up to and including 600 kPa, of nominal connection size up to and including DN 250 for use with one or more fuel gases in accordance with EN 437:2009; — gas filters specified as pressure accessories as defined by EU Directive 2014/68/EU (see Annex F). NOTE 1 For pressure accessories, the requirements of EN 13611:2019, Annex F also apply. NOTE 2 Requirements for pressures above 500 kPa are considered in sub-clause 6.3.1 by referring to EN 13611:2019, Annexes F to H. This European Standard is not applicable to gas filters that are connected directly to mains pipe-work or to a container that maintains a standard distribution pressure.

This European standard applies to eutectic cooling devices which are intended to be used with insulated transport equipment. The following applications are covered: • Eutectic cooling devices with or without compressor /condenser unit intended to be installed into insulated means of transport (e.g. lorries, trailers, swap bodies, other transport containers and wagons). Charging of the eutectic elements from the liquid to the solid phase may be performed either by a compressor/condenser unit mounted onto the vehicle or cooled by a stationary direct or indirect system. The eutectic cooling devices are equipped, if relevant, with necessary components for the charging, transmission, cooling and/or with temperature control devices. The eutectic elements can be fitted with or without fans. • Eutectic cooling devices with independent eutectic elements which have to be charged using external means. This standard specifies the testing methodologies. This standard is only applicable for mono-temperature eutectic cooling devices. This standard does not provide any safety requirements.