Category: EN standards

1 Scope This document describes the basic verification tests, the testing methods, the amount of testing and the requirements for the qualification of welding consumables for steel, nickel and nickel alloys intended for all fields of application. This document describes a wide range of tests, which are appropriate for the majority of applications. When supplementary tests are required (see EN […]

1 Scope This Part 1 -2 of the European Standard EN 50290 gives the terms and definitions for the design, the construction, the tests and the installation of symmetrical, coaxial and optical fibre cables used for the infrastructure of communication and control networks. These definitions apply for the European Standard series EN 50290 and EN 50289 and all the relevant […]

1 Scope This clause of Part 1 is applicable, except as follows: 1 .1 Addition: This standard applies to sanders and polishers with the exception of all types of rotating disc-type sanders, which are covered by EN 60745-2-3. NOTE Until publication of EN 60745-2-3, rotating disc-type sanders are covered by EN 501 44-2-3. Tools covered by this standard include but […]

1 Scope This sheet of IEC 6081 9-3 specifies requirements for two types of filled glass paper designated: P-FG type 1 : high inorganic content paper with maximum organic content 1 5 %; P-FG type 2: medium inorganic content paper with maximum organic content 25 %. 2 Normative references The following normative documents contain provisions which, through reference in the […]

1 Scope This part of IEC 61 1 08 specifies the minimum operational and performance requirements, methods of testing and required test results conforming to performance standards not inferior to those adopted by the IMO in resolution MSC.1 1 4(73). In addition, it takes account of IMO resolution A.694(1 7) and is associated with IEC 60945. When a requirement of […]

5 Atmosphere for conditioning and testing The following requirements supersede any other specification for the atmosphere for conditioning and testing that may be given in one or more of the documents referred to in this standard. Unless otherwise agreed, the atmosphere for conditioning and testing for laboratory evaluations shall be (23 ± 2) °C and (1 2 ± 3) % […]

1 Scope This International standard specifies tests and requirements for verifying the mechanical behaviour of sealed portable secondary cells and batteries during handling and normal use. Relevant national and International standards have been taken into consideration. This standard provides test objectives, methods of tests and acceptance criteria relevant to sealed portable secondary cells and batteries of d ifferent electrochemical systems […]

1 Overview 1.1 Scope This standard sets down guidelines for the application, design concepts, and implementation of computer-based control systems for hydroelectric plant automation. It addresses functional capabilities, performance requirements, interface requirements, hardware considerations, and operator training. It includes recommendations for system testing and acceptance. Finally, case studies of actual computer-based automatic control applications are presented. The automation of control […]

1 Scope This International Standard specifies the requirements for a heavy-duty series of bolted bonnet steel gate valves for petroleum refinery and related applications where corrosion, erosion and other service conditions would indicate a need for full port openings, heavy wall sections and large stem diameters. This International Standard sets forth the requirements for the following gate valve features: bolted […]

1 Scope This part of ISO 1 1 904 specifies basic framework measurement methods for sound immission from sound sources placed close to the ear. These measurements are carried out with a manikin, equipped with ear simulators including microphones. The measured values are subsequently converted into corresponding freefield or diffuse-field levels. The results are given as free-field related or diffuse-field […]