German standard methods for the examination of water, waste water and sludge; general information (group A); Part 45: Interlaboratory comparisons for proficiency testing of laboratories (A45)
适用范围:This standard specifies requirements on carrying out interlaboratory trials for external quality control of laboratories. With respect to the purpose the standard differs from DIN 38402-41 and DIN 3840...
实施日期:2000-05-01
Bahnanwendungen. Umweltbedingungen für Betriebsmittel. Umweltbedingungen für Signalund Telekommunikationseinrichtungen Railway applications. Environmental conditions for equipment. Part 3:Equipment for...
适用范围:This European Standard specifies the environmental conditions encountered within Europe. It can also beapplied elsewhere by agreement between the supplier and the customer.The scope of this European St...
实施日期:2003-03-19
Metallic materials - Calibration of extensometer systems used in uniaxial testing (ISO 9513:2012 + Cor. 1:2013); German version EN ISO 9513:2012
发布日期:2013-05-01 实施日期:2013-05-01
Tyres for agricultural tractors and machines -- Code-designated and service-description marked radial drive-wheel tyres
适用范围:ISO 8664:2005 specifies the marking, dimensions, load ratings and reference speeds for existing series of agricultural tractor drive-wheel tyres with service description (load index and speed symbol). ...
发布日期:2005-06-01 实施日期:2005-06-01
Durchfluss(mengen)messung in offenen Gerinnen. Bestimmung des Verhaeltnisses zwischen (Fluessigkeits)Stand und Ablauf(menge) Measurement of Liquid Flow in Open Channels-Part 2:Determination of the Stag...
适用范围:Specifies methods of determining the stage-discharge relation for a gauging station in both stable and unstable channels, including those subject to ice conditions. Includes an analysis of the uncertai...
实施日期:1998-07-15
Helical-scan video tape cassette system using 12,65 mm (0,5 in) magnetic tape on type beta format; identical with IEC 60767, edition 1983
Electrical insulating materials - Thermal endurance properties - Part 2: Determination of thermal endurance properties of electrical insulating materials - Choice of test criteria
适用范围:Gives guidance for the choice of test criteria for the determination of thermal endurance characteristics. It includes a list of existing published procedures which is however not exhaustive. The main ...
发布日期:2005-08-11 实施日期:2005-08-11
Connectors for frequencies below 3 MHz for use with printed boards - Part 11: Detail specification for concentric connectors (dimensions for free connectors and fixed connectors)
适用范围:Covers concentric connectors for use in LF (low-frequency) audio applications such as the interconnection of headphones and microphones in sound system components. Specifies the dimensions, general req...
发布日期:1992-03-15 实施日期:1992-03-15
Overhead Lines Testing of Foundations for Structures IEC 1773: 1996
发布日期:1996-12-11 实施日期:1997-08-01
High-voltage alternating-current circuit-breakers
适用范围:本标准适用于设计安装在户内或户外且运行在频率为50 Hz 、电压3000 V 及以上的系统中的交流断路器。本标准仅适用于三相系统中的三极断路器和单相系统中的单极断路器。用于单相系统中的两极断路器及用于频率低于50 Hz 时应...
发布日期:2003-06-05 实施日期:2004-01-01
实施日期:1999-08-01
Gears -- Cylindrical involute gears and gear pairs -- Concepts and geometry
适用范围:ISO 21771:2007 specifies the geometric concepts and parameters for cylindrical gears with involute helicoid tooth flanks. Flank modifications are included. It also covers the concepts and parameters fo...
发布日期:2007-09-01 实施日期:2007-09-01
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