Iec 60942 class 1 calibrator the larson davis model cal250 is a battery operated precision microphone calibrator for 1 microphones used for the calibration of sound level meters and other sound measurement equipment. Tolerance limits are smallest for class ls and greatest for class 2 instruments. The following bibliographic material is provided to assist you with your purchasing decision. Specifications under standard ambient conditions iec 60942. The numbers of older iec standards were converted in 1997 by adding 60000. This standard is identical with and has been reproduced from iec 60942. This document specifies the performance requirements for three classes of sound calibrator. Pdf electrical installation guide according to iec. A new standard iec 60942, an extensive revision of the existing document, was prepared by iec tc29 electroacoustics, working group 17. If you have a class 2 sound level meter you can use either a class 2 or class 1 calibrator. All bsi british standards available online in electronic and print formats. Draft international standards are circulated to the national bodies for voting. Iec 60942 class 2 calibrator the larson davis cal150 sound level calibrator is a battery operated precision microphone calibrator used for the calibration of sound level meters and other sound measurement equipment.
Iec 60942, class 1 compliant sound calibrator for 1inch and 12inch microphones nc74 the nc74 is a sound calibrator conforming to iec 60942, class 1 requirements, suitable for calibrating highprecision sound pressure level meters. Iec 60942, class 1 compliant sound calibrator for 1inch. There are other standards for the calibrator, for noise dosimeters, personal sound exposure meters, octave band filters and so on. Download international iec standard 60812 book pdf free download link or read online here in pdf. The current standard for sound level meters, iec 61672, is published in three parts. These requirements are intended to be general for all types of.
The compliance of an assembly is declared referring to the specific assembly standard e. Also complies with iec 60942 version 4 currently under revision. Maritime navigation and radiocommunication equipment and systems. Homepagedin standards din en iec 60942 elektroakustik schallkalibratoren iec 60942.
Standard swedish standard ssen iec 60942 electroacoustics sound calibrators status. International standard iec 6205621 has been prepared by iec technical committee. To satisfy most regulations, new meters should meet the standard iec 61672 or the british standard equivalent bs en 61672 to either class 1 or class 2. Iec standards often have multiple subpart documents. It cant be otherwise since organisations that publish standards, like bis who publish indian standards, is, iso, iec etc. Iec 61672 a standard for sound level meters explained. Compact and lightweight sound calibrator allows highly. Missing page numbers correspond to the frenchlanguage pages. Iec 60942, class 1 compliant sound calibrator for 1inch and. Standard electroacoustics sound calibrators ssen iec. The acceptance limits for class ls sound calibrators are based on the use of a laboratory standard microphone, as specified in iec 610941, for. A class 1 sound calibrator is primarily intended for use with a class 1 sound level meter and a class 2 sound calibrator primarily with a class 2 sound level meter, as specified in iec 616721. The objective of this standard is to specify the performance requirements for three classes of sound calibrator, laboratory standard class ls, class 1 and class 2.
Specifications in this standard for the response to sound waves apply without an operator present in the sound. In general, if you have a class 1 or type 1 sound level meter then you should use a class 1 calibrator. Calibration of measurement microphones, sound level meters, and other sound. Oct 28, 2014 acoustic and vibration standards compliance ansi, iec, iso, jis publish date. Iec 60027 letter symbols to be used in electrical technology iec 60028 international standard of resistance for copper iec 60034 rotating electrical machinery iec 60038 iec. This fourth edition cancels and replaces the third edition published in 1996 and constitutes a technical revision. Din en iec 60942 electroacoustics sound calibrators iec 60942. The class 1 calibrator is a little more accurate than the class 2. All books are in clear copy here, and all files are secure so dont worry about it. Iec 61439 standard for low voltage switchgear and controlgear assemblies on. Iec 61439 the rule is two parts for each type of assembly.
Consolidated editions the iec is now publishing consolidated versions of its publications. Acceptance limits are smallest for class ls and greatest for class 2 instruments. A 12 microphone adaptor is supplied with the cal250. For example, iec 341 is now referred to as iec 600341. Acoustic and vibration standards compliance ansi, iec, iso. Most of the standards, national or ibternational, are priced publications and not free. International standard iec 60942 has been prepared by iec technical. International standards are drafted in accordance with the rules given in the iso iec directives, part 2. International standard iec 60945 has been prepared by iec technical committee 80. This standard has brought considerable clarity in technical interpretation. Scope show below hide below this international standard specifies the performance requirements for three classes of sound calibrator. Small dimensions and light weight make the unit easy to carry and use anywhere. The tolerance limits for class 1 and class 2 sound calibrators are based on the use of a working standard microphone, as specified in iec 610944, fordemonstrations of conformance to the requirements of this standard.
Apr 23, 2020 iec 60942 pdf purchase your copy of bs en iec as a pdf download or hard copy directly from the official bsi shop. Dec 22, 2019 iec 60942 pdf purchase your copy of bs en iec as a pdf download or hard copy directly from the official bsi shop. In order to promote public education and public safety, equal justice for all, a better informed citizenry, the rule of law, world trade and world peace, this legal document is hereby made available on a noncommercial basis, as it is the right of all humans to know and speak the laws that govern. International standard iec 60446 basic and safety principles for manmachine interface, marking and identification identification of equipment terminals, conductor terminations and conductors defines basic safety principles for identifying electrical conductors by colours or numerals, for example in electricity distribution wiring. The calibrator should meet the standard iec 60942 to either class 1 or class 2. As iec 609422004 download asme bpvc standards 2019.
Please check our terms and conditions mainly for engineering standards in electronic pdf. The international standards for photovoltaic pv module safety qualification, iec 61730 series 617301 and 617302, were recently updated to reflect changes in pv module technologies. Whether it is for air conditioning or heating, disco noise, machine noise or noise in. Following, the international standard iec 60942 is discussed emphasizing parameters, target measurement uncertainty and criteria for conformance to the requirements of the standard. Specifies the performance requirements for three classes of sound calibrator.
Jan 20, 2020 iec 60942 pdf purchase your copy of bs en iec as a pdf download or hard copy directly from the official bsi shop. Any divergence between the iec standard and the corresponding national or regional standard shall be clearly indicated in the latter. Oct 28, 2014 overview the ni sound and vibration toolkit and ni sound and vibration measurement suite meet the following standards for measurement and analysis as of the sound and vibration software 2014 release. As iec 609422004 electroacoustics sound calibrators. Specifies the performance requirements for these classes of sound calibrator, laboratory standard class ls, class 1 and class 2. Iec 60751 standard pdf iec industrial platinum resistance thermometers and platinum temperature sensors. Iec 60439, the standard for lowvoltage switchgear and controlgear assemblies, was under restructuring from the last decade. Pdf 9 users english, pdf 5 users english, pdf 3 users english, pdf 1 user. The sentence tta switchgear according to iec 604391 is now replaced by power switchgear and. Aug 19, 2019 iec 60942 pdf purchase your copy of bs en iec as a pdf download or hard copy directly from the official bsi shop. Each product comes standard with a jcss calibration. List of international electrotechnical commission standards. Equipment for electrical energy measurement and load control.
Iec 61439 standard for low voltage switchgear and controlgear iec 61439 standard for low voltage switchgear and controlgear assemblies. This calibration comprises in measuring sound pressure level, frequency and total harmonic distortion. Standard electroacoustics sound calibrators iec 60942. This is an incomplete list of standards published by the international electrotechnical commission iec the numbers of older iec standards were converted in 1997 by adding 60000. Here our explanation of iec 61672 and what these parts mean for sound level meters. Read online international iec standard 60812 book pdf free download link book now. Documents sold on the ansi standards store are in electronic adobe acrobat pdf format, however some iso and iec standards are available from amazon in hard copy format. Standard routines for use with fastbus data acquisition system standard routines for use with fastbus data acquisition system iec 61053 helicalscan video tape cassette system using 12,65 mm 0,5 in magnetic tape on type beta format fm audio recording. International iec standard 60812 pdf book manual free. Are the documents at the ansi webstore in electronic adobe acrobat pdf format only. Journal of research of the national institute of standards and technology. Published in 2016, the new second edition relies on the important and fundamental concepts from iec horizontal standards, in particular, the iec 60664 series.
International standard iec 60567 third edition 200506 this englishlanguage version is derived from the original bilingual publication by leaving out all frenchlanguage pages. This site is like a library, you could find million book here by using search box. Iec 614392, and the compliance with the general rules iec 614391 is always implicit. Part 2 pattern evaluation tests the text of the iec standard has been approved as suitable for publication as an indian standard without deviations. Electrical installation guide according to iec international standards this guide has been written for electrical engineers who have to design, select electrical equipment, install these equipment and, inspect or maintain lowvoltage electrical installations in compliance with international standards of the international electrotechnical. Iec60942 electroacoustics sound calibrators document. The new series of iec 61439 standards were published in january 2009. Sound level calibrator acoustic calibrator a definition. Din en 60942 200405 electroacoustics sound calibrators iec 60942. Publication as an international standard requires approval by at least 75 % of the national bodies casting a vote. The first part, part 1, details the performance characteristics that a class 1 or class 2 sound level meter should have. This first edition iec 6205621 cancels and replaces the second edition of iec 61107 published in 1996 and constitutes a technical revision. Following, the international standard iec 60942 is discussed emphasizing parameters, target measurement uncertainty and criteria for conformance to the. The acceptance limits for class ls sound calibrators are based on the use of a laboratory standard microphone, as specified in iec 610941, for demonstrations.
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