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Brown coals are classified in this International Standard according to the following properties: total moisture content calculated on the ash-free basis; tar hiels calculated on the dry, ash-free basis. In tables class numbers, group number and code numbers of brown coal types are given.

This document provides requirements and recommendations on the development of accessible audiovisual content. It requires and recommends a variety of different accessibility components, dealt with in further detail in additional parts of the ISO 20071 series, that meet different user accessibility needs. It also provides guidance related to translations, localizations, timing, importance, and…

This International Standard specifies a method for the determination of the chlorine and bromine content of liquid petroleum products, synthetic oils and fluids, and additives for petroleum products (including used oils) that are soluble in organic solvents of negligible or accurately known chlorine/bromine content. The method is applicable to products or additives having chlorine contents in the…

This Standard describes the determination of height-resolved profiles of atmospheric backscattering by means of active optical sounding. The measurements allow the following properties of the atmosphere up to several kilometres above ground to be derived: • Cloud bases • Upper boundaries of optically thin clouds • Upper and lower boundaries and internal structures of particle layers: – The height…

This document specifies an analytical method for the determination of silver on a material considered homogeneous. The silver content of the samples lies preferably between 50 ‰ (parts per thousand) and 990 ‰ (parts per thousand). Fineness above 999,0 ‰ can be determined using a spectroscopy method by difference (e.g. ISO 15096). NOTE Lower contents of silver can be analyzed with this method.

This International Standard describes a method with two procedures for the assessment of pigment or carbon black particle and agglomerate size and degree of dispersion in polyolefin pipes, fittings and compounds. The method is applicable to polyolefin pipes and fittings, as well as raw material in pellet form, with the choice of procedure to be determined by the referring specification. The…

ISO 17523:2016 specifies the requirements that apply to electronic prescriptions. It describes generic principles that are considered important for all electronic prescriptions. ISO 17523:2016 is constrained to the content of the electronic prescription itself, the digital document which is issued by a prescribing healthcare professional and received by a dispensing healthcare professional. The…