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ISO 20819:2018 specifies the types and proportions of raw materials to be used for wood-plastic recycled composites (hereafter referred to as WPRC). It also specifies the health and safety requirements for WPRC and the methods to test these properties. ISO 20819:2018 is applicable to WPRC which are primarily used as building materials.

L'ISO 4829-1:2018 spécifie une méthode spectrophotométrique au silicomolybdate réduit pour la détermination du silicium dans les aciers et les fontes. La méthode est applicable aux teneurs en silicium comprises entre 0,05 % et 1,0 %.

ISO 4829-1:2018 specifies a spectrophotometric method for the determination of total silicon in steel and cast iron using reduced molybdosilicate. The method is applicable to the determination of silicon mass fraction between 0,05 % and 1,0 %.

L'ISO 21028-2:2018 spécifie les exigences de ténacité des matériaux métalliques utilisables à une température comprise entre −20 °C et −80 °C pour assurer leur aptitude à l'emploi pour les récipients cryogéniques. Il est applicable aux aciers à grains fins et aux aciers faiblement alliés avec une limite d'élasticité spécifiée ≤ 460 N/mm2, à l'aluminium et aux alliages d'…

ISO 8625-2:2018 defines general terms relating to flow in fluid systems used in aerospace construction.

ISO 8625-3:2018 defines general terms relating to temperature in fluid systems used in aerospace construction.

ISO 8625-1:2018 defines general terms relating to pressure in fluid systems used in aerospace construction.

ISO 21028-2:2018 specifies the toughness requirements of metallic materials for use at temperatures between −20 °C and −80 °C to ensure their suitability for cryogenic vessels. This document is applicable to fine-grain and low-alloyed steels with specified yield strength ≤460 N/mm2, aluminium and aluminium alloys, copper and copper alloys and austenitic stainless steels. NOTE For steel…