Réseaux de communication industriels - Spécifications des bus de terrain - Partie 6-3: Spécification...
L’IEC 61158-6-3:2019 fournit des éléments communs pour les communications de messagerie prioritaires et non prioritaires élémentaires entre les programmes d’application des environnements d’automatisation et le matériel spécifique au bus de terrain de type 3. Le terme “prioritaire” sert à représenter la présence d’une fenêtre temporelle, dans les limites de laquelle une ou plusieurs actions…
This document reviews the methodologies or analytical models that have been used to develop the strength and stiffness of structural glued laminated timber (glulam) from the characteristic properties of lumber laminations. The review is limited to the methodologies used in Europe, the USA, Australia/New Zealand, and Canada as they represent different fundamental philosophies in these areas. As a…
Cryogenic vessels — Large transportable vacuum-insulated vessels — Part 1: Design, fabrication, insp...
This document specifies requirements for the design, fabrication, inspection and testing of large transportable vacuum-insulated cryogenic vessels of more than 450 l volume, which are permanently (fixed tanks) or not permanently (demountable tanks and portable tanks) attached to a means of transport, for one or more modes of transport.
This document applies to large transportable vacuum-insulated…
Aluminium alloy castings — Visual method for assessing porosity
This document specifies a visual method for assessing the porosity of the machined surface of aluminium alloy castings.
The method does not apply to assessing porosity shown on radiograms.
Heat pump water heaters — Testing and rating for performance — Part 2: Heat pump water heaters for s...
This document specifies test conditions and test procedures for determining the performance characteristics of air source heat pump water heaters for space heating with electrically driven compressors with or without supplementary heater. The purpose of this document is to rate the performance of the heat pump water heaters for space heating with no operation of any supplementary heater. In the…
Photography — Digital still cameras — Measuring shooting time lag, shutter release time lag, shootin...
This document specifies how to measure and report the shooting time lag, shutter release time lag, shooting rate and start-up time lag for digital still cameras, including camera modules in phones and tablet computers. It includes a method that uses control signals inside the digital still camera and a method that determines the timing values without requiring access to the inside of the digital…
Large yachts — Strength, weathertightness and watertightness of glazed openings — Part 3: Quality as...
This document specifies
— the content of the product data sheet of glazing materials for use on yachts,
— the evaluation of conformity to the product data sheet of laminated glass and laminated safety glass for use on yachts,
— the product labelling and identification methods for glass supplied for installation on board a yacht, and
—…
Environmental testing - Part 2-69: Tests - Test Te/Tc: Solderability testing of electronic component...
IEC 60068-2-69:2017+A1.2019 outlines test Te/Tc, the solder bath wetting balance method and the solder globule wetting balance method to determine, quantitatively, the solderability of the terminations. Data obtained by these methods are not intended to be used as absolute quantitative data for pass–fail purposes. The procedures describe the solder bath wetting balance method and the solder…
