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IEC 60268-21:2018 specifies an acoustical measurement method that applies to electro-acoustical transducers and passive and active sound systems, such as loudspeakers, TV-sets, multi-media devices, personal portable audio devices, automotive sound systems and professional equipment. The device under test (DUT) can be comprised of electrical components performing analogue and digital signal…

This document provides guidance on the sampling of soils of — natural and near-natural sites, — natural arboreal areas including forests and woods, — areas used for agriculture (arable and pasture sites), — areas used for horticulture (including domestic gardens, allotments), and — areas used for special crop-cultivation, orchards, vineyards,…

This standard applies to chairs used in office environments including chairs for computer uses and non-computer (occasional) uses i.e. conference (w/Table) and guest applications (Side chair). The dimensions given in this standard aim to respect generally accepted ergonomic guidelines and design requirements such as those of CAN/CSA-ISO 9241-5 and BIFMA G1-2013, along with the best practices…

This document provides concepts, specification and qualification of 2G HTS joining procedure. A welding procedure specification (WPS) is needed to provide a basis for planning joining operations and for quality control during joining. Joining is considered as a special process in the terminology of standards for quality systems. Standards for quality systems usually require that special processes…

IEC 62106-3:2018 defines the Open Data Application (ODA) feature of the Radio Data System (RDS). The ODA feature in essence allows raw data to be transmitted via a transparent data channel from a service provider to a suitably equipped receiver without there being any prior knowledge of the data content by the IEC 62106 standard. This document defines the method of packaging the data within the…

This document specifies a method of testing the continuous wave (cw) laser resistance of the shaft of a tracheal tube and the cuff regions including the inflation system of tracheal tubes designed to resist ignition by a laser. NOTE 1 When interpreting these results, the attention of the user is drawn to the fact that the direct applicability of the results of this test method to the clinical…

This National Standard of Canada applies to two types of automotive fuel: type 1, 50% to 85% by volume denatured fuel ethanol with gasoline and type 2, 20% to 25% by volume denatured fuel ethanol with gasoline. Both types are strictly for use in flexible-fuel vehicles over a wide range of climatic conditions. Users of this standard are advised to consult the owner’s manual and/or the original…

1 Scope 1.1 This Standard specifies the requirements for all types of welded aluminum construction with the exception of those types listed in Clause 1.2. Common requirements that are essential to all structures, including statically-loaded structures and cyclically-loaded structures, are included in this Standard. 1.2 This Standard is not intended to apply to pressure vessels or to…

This document specifies the requirements for medium tolerance sling chains of grade 4 from stainless steel for use preferably in chain slings of grade 4 from stainless steel or for other lifting purposes. The range of nominal diameter, dn, covered by this document is from 4 mm to 22 mm. These sling chains are round steel short link chains with a nominal pitch, pn = 3 × dn, electrically welded,…

This document specifies a method for the determination of ammonia in tobacco and tobacco products using ion chromatographic analysis. It is applicable to tobacco, processed tobaccos, smokeless tobacco products and cigarette filler. The ammonia calibration range specified in the method is from 0,100 μg/ml to 10,0 μg/ml. This range correlates to 10 µg/g to 1 000 µg/g ammonia in tobacco. Samples…