实施日期:2009-10-31
Evaluation standization of grade for microcomputers and peripheral equipments service center
适用范围: 本标准规定了微型计算机及其外围设备维修服务部等级划分的条件和评定规则。 本标准适用于在中华人民共和国境内工商登记注册、合法经营的微型计算机及其外围设备维修服务法人经营单位或其所属经营单位、下设机构。
发布日期:2005-04-16 实施日期:2005-06-01
Fu und Beinschutz. Anforderungen und Prüfverfahren für durchtrittsichere Einlagen und Zehenkappen Foot and leg protectors. Requirements and test methods for toecaps and penetration resistant inserts Pr...
适用范围:This European Standard specifies requirements and test methods for toe caps and inserts with resistanceagainst mechanical penetration, intended to function as components of PPE footwear (e.g. as descri...
实施日期:2010-06-30
Quartz crystal controlled oscillators - Part 2: Guide to the use of quartz crystal controlled oscillators (IEC 60679-2:1981)
适用范围:The document describes the general properties and performance characteristics of quartz crystal controlled oscillators.
实施日期:2003-11-19
Surface acoustic wave (SAW) resonators; part 3: standard outlines and lead connections; identical with IEC 61019-3:1991
适用范围:Explains details to perform drawings. Figure 1 and the sheets 1 to 6 illustrate designation and dimensioning of the object and tabulating the corresponding data.
Stairs and guard rails for engine rooms and boiler rooms in seagoing ships - Fundamental requirements
适用范围:The document contains fundamental requirements for stairs and railings of engine rooms and boiler rooms in vessels. It restricts the scope to seagoing vessels.
实施日期:2002-08-01
Electrical strength of insulating materials. Test methods. Part 1 : tests at power frequencies.
Standard Specification for Precipitation Hardening Iron Base Superalloy Bars,Forgings,and Forging Stock for High-Temperature Service
适用范围:<p id="s00002">1.1 This specification covers hot-finished or cold-finished precipitation hardening iron base superalloy bars, forgings, and forging stock for high-temperature service. The mechanical ...
实施日期:2010-04-01
Calcium aluminate cement - Composition, specifications and conformity criteria
适用范围:This European Standard gives a general definition of calcium aluminate cement and its composition. Itincludes requirements for the mechanical, physical and chemical properties and also states theconfor...
实施日期:2007-04-01
Vordruck fuer Bauartspezifikation. Hochbelastbare Festwiderstaende (Bewertungsstufe S) Harmonized System of Quality Assessment for Electronic Components Blank Detail Specification:Fixed Power Resistors...
适用范围:Fixed resistors, Power resistors, Resistors, Electrical components, Electronic equipment and components, Quality assurance systems, Assessed quality, Qualification approval, Approval testing, Inspectio...
实施日期:1997-09-15
Low-voltage electrical installations. Part 4-444:Protection for safety. Protection against voltage disturbances and electromagnetic disturbances
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