Industrial-process control valves - Part 2-1: Flow capacity - Sizing equations for fluid flow under ...
IEC 60534-2-1:2011 includes equations for predicting the flow of compressible and incompressible fluids through control valves. The equations for incompressible flow are based on standard hydrodynamic equations for Newtonian incompressible fluids. They are not intended for use when non-Newtonian fluids, fluid mixtures, slurries or liquid-solid conveyance systems are encountered. The equations for…
Medical electrical equipment - Part 2-27: Particular requirements for the basic safety and essential...
IEC 60601-2-27:2011 applies to electrocardiographic monitoring equipments used in a hospital environment as well as when used outside the hospital environment, such as in ambulances and air transport. This particular standard also applies to ECG telemetry systems used in a hospital environment. Electrocardiographic monitoring equipments intended for use under extreme or uncontrolled environmental…
Digital audiobook file format and player requirements
IEC 62571:2011 defines requirements and provides recommendations to publishers, software developers, content providers, and hardware manufacturers for the data structure, usability requirements, playback systems and delivery systems for audiobooks in digital file format. It should be noted that throughout this International Standard, the term audiobook is defined as any audio file or collection…
Digital audiobook file format and player requirements
IEC 62571:2011 defines requirements and provides recommendations to publishers, software developers, content providers, and hardware manufacturers for the data structure, usability requirements, playback systems and delivery systems for audiobooks in digital file format. It should be noted that throughout this International Standard, the term audiobook is defined as any audio file or collection…
Animal and vegetable fats and oils — Determination of trace elements by inductively coupled plasma o...
ISO/TS 21033:2011 specifies an inductively coupled plasma optical emission spectroscopic (ICP-OES) method for the determination of trace element content in oils. Depending on the dilution solvent used, most types of vegetable oils can be analysed (crude, degummed, refined, bleached, deodorized and hardened oils) and nearly all types of lecithins and phosphatides.
This procedure is only suitable…
Low-voltage surge protective devices - Part 11: Surge protective devices connected to low-voltage po...
IEC 61643-11:2011 is applicable to devices for surge protection against indirect and direct effects of lightning or other transient overvoltages. These devices are packaged to be connected to 50/60 Hz a.c. power circuits, and equipment rated up to 1 000 V r.m.s. Performance characteristics, standard methods for testing and ratings are established. These devices contain at least one nonlinear…
ISO/IEC 24775:2011(E) defines an interface for the secure, extensible,
and interoperable management of a distributed and heterogeneous storage system.
This interface uses an object-oriented, XML-based, messagingbased
protocol designed to support the specific requirements of managing devices and
subsystems in this storage environment. Using this protocol, this International
Standard describes the…
ISO/IEC 24775:2011(E) defines an interface for the secure, extensible, and interoperable management of a distributed and heterogeneous storage system. This interface uses an object-oriented, XML-based, messagingbased protocol designed to support the specific requirements of managing devices and subsystems in this storage environment. Using this protocol, this International Standard describes the…
Information technology - Implementation and operation of customer premises cabling - Part 3: Testing...
ISO/IEC 14763-3:2006+A1:2011 specifies systems and methods for the inspection and testing of optical fibre cabling designed in accordance with ISO/IEC 11801 or equivalent standards. The test methods refer to existing standards-based procedures where they exist. It replaces ISO/IEC TR 14763-3, first edition, published in 2000, and constitutes a technical revision. It incorporates innovations and…
Anodizing of aluminium and its alloys — Determination of mass per unit area (surface density) of ano...
ISO 2106:2011 specifies a gravimetric method for determining the mass per unit area (surface density) of anodic oxidation coatings on aluminium and its alloys.
The method is applicable to all oxidation coatings formed by anodizing aluminium and its alloys, either cast or wrought, and is suitable for most aluminium alloys, except those in which the copper content is greater than 6 %.
