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EPUB® documents, unlike print books or PDF files, are designed to change. The content flows, or reflows, to fit the screen and to fit the needs of the reader. The EPUB 3.0 Specification says that "content presentation should adapt to the user rather than the user having to adapt to a particular representation of content." But this principle doesn't work for all types of documents.…

ISO 17730:2014 specifies requirements and their test methods for total digestible fluoride content in dental varnishes containing fluoride, intended for use in the oral cavity directly on the outer surfaces of teeth and fillings. It also specifies the requirements for their packaging and labelling, including the instructions for use. This International Standard covers fluoride varnishes to be…

IEC 60071-5:2014 provides guidance on the procedures for insulation co-ordination of high-voltage direct current (HVDC) converter stations, without prescribing standardized insulation levels. This standard applies only for HVDC applications in high-voltage a.c. power systems and not for industrial conversion equipment. Principles and guidance given are for insulation co-ordination purposes only.…

IEC 61481-1:2014 is applicable to portable phase comparators of capacitive type to be used on electrical systems for voltages exceeding 1 kV a.c. and frequencies of 50 Hz and/or 60 Hz. This standard is applicable to single-pole phase comparators of capacitive type operating with a memory system up to 36 kV a.c., and two-pole phase comparators of capacitive type operating with a wireless…

ISO 9928-2:2014 specifies the contents of a manual for the operators of mobile cranes as defined in ISO 4306 2.

IEC TR 60068-3-12:2014 presents two approaches for establishing a possible temperature profile for a lead-free reflow soldering process using SnAgCu solder paste. This process covers a great variety of electronic products, including a large range of package sizes (e.g. molded active electronic components, passive components and electromechanical components). Study A addresses requirements needed…

ISO 1656:2014 specifies a macro-method and a semi-micro method for the determination of nitrogen in raw natural rubber and in natural rubber latex using variants of the Kjeldahl process.

ISO 17855-1:2014 establishes a system of designation for polyethylene thermoplastic material, which may be used as the basis for specifications. ISO 17855-1:2014 is applicable to all polyethylene homopolymers and to copolymers of ethylene having a content of other 1-olefinic monomers of less than 50 % (mass fraction) and a content of non-olefinic monomers with functional groups up to a maximum of…

IEC 61747-4-1:2014(E) describes the essential ratings and characteristics of matrix colour liquid crystal display (LCD) modules. This edition includes the following significant technical changes with respect to the previous edition: Adding the contents of the IEC 61747 series, adding the TFT technical kinds, revising the electrical and optical characteristics in Table 1 and correcting some…

IEC 60793-1-20:2014 establishes uniform requirements for measuring the geometrical characteristics of uncoated optical fibres. The geometry of uncoated optical fibres directly affect splicing, connectorization and cabling and so are fundamental parameters requiring careful specification, quality control, and thus measurement. This second edition cancels and replaces the first edition, published…