Power line communication systems for power utility applications - Part 1: Planning of analogue and digital power line carrier systems operating over EHV/HV/MV electricity grids (IEC 62488-1:2012); Germ...
发布日期:2013-11-01 实施日期:2013-11-01
Portable video/audio recording equipment for the individual enforcing policeman
适用范围:本标准规定了单警执法视音频记录仪的术语和定义、分类与编码、技术要求、试验方法、检验规则、标志、包装、运输和贮存本标准适用于单警执法视音频记录仪的设计、制造和检验。公安公共管理中使用的其他视音频记录仪可参照使用。
发布日期:2011-08-11 实施日期:2011-08-11
Measurements of the electrical properties of low-power electronic tubes--Methods of measurement of output power and nonlinear distortion under test in the conditions of low-frequency amplification
Coaxial communication cables - Part 1-122: Electrical test methods - Test for cross-talk between coaxial cables
适用范围:applies to coaxial communications cables. It specifies a test method for determining the cross-talk between coaxial cables for use in communications systems. This method is applicable for the measureme...
发布日期:2006-03-13 实施日期:2006-03-13
Length-measuring of perforated motion-picture films and magnetic tapes; tables of running times 1 to 120 min in relation to film length
适用范围:Length-measuring of perforated motion-picture films and magnetic tapes; tables of running times 1 to 120 min in relation to film length.Mesurement de la longueur des films perforés et des rubans magnét...
Space data and information transfer systems -- Proximity-1 space link protocol -- Physical layer
适用范围:ISO 21460:2007 defines the Proximity-1 space link protocol physical layer. It specifies the channel connection process, provision for frequency bands and assignments, hailing channel, polarization, mod...
发布日期:2007-10-01 实施日期:2007-10-01
Non-broadcast video tape recorders. Methods of measurement - Part1: General, video (NTSC/PAL) and audio (longitudinal)characteristics
适用范围:Deals with the assessment of the performance of non-broadcast video tape recorders of the so-called colour-under type for domestic use. Defines test signals, measurement set-ups and measurement conditi...
发布日期:1990-11-15 实施日期:1990-11-15
Akustik. Beschreibung und Messung von Umgebungsgeraeuschen Anwendung auf Geraeuschgrenzwerte Description and Measurement of Environmental Noise Part 3:Guide to Application to Noise Limits (H) (ISO 1996...
适用范围:Gives guidance on the way noise limits should be specified and on methods to verify whether or not they have been complied with.
实施日期:1991-01-01
Sound system equipment - Part 3: Methods of measurement on audio amplifiers
适用范围:本部分规定了放大器规范中应给出的特性,以及其相应的侧量方法。本部分适用于组成专业或家用声系统的模拟放大器以及模拟/数字放大器中的模拟部分。一般地说,所给出的测量方法是与定义有最直接关系的,但并不排除采用能得到...
发布日期:2011-10-31 实施日期:2012-02-01
Connectors for electronic equipment - Part 4-108: Printed board connectors with assessed quality; Detail specification for cable-to-board connectors, with a modular pitch of 25 mm and integrated shield...
实施日期:2002-12-01
Electric sirens for a.c. voltages from 125 to 500 V; technical delivery terms
适用范围:Electric sirens for a.c. voltages from 125 to 500V; technical delivery termsFür den Geltungsbereich dieser Norm bestehen keine entsprechenden regionalen oder internationalen Normen.
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
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