HRN EN IEC 60942:2018
Elektroakustika -- Zvučni umjerivači (IEC 60942:2017; EN IEC 60942:2018)
| Oznaka: | HRN EN IEC 60942:2018 |
| Naslov (HR): | Elektroakustika -- Zvučni umjerivači (IEC 60942:2017; EN IEC 60942:2018) |
| Naslov (EN): | Electroacoustics -- Sound calibrators (IEC 60942:2017; EN IEC 60942:2018) |
| Područje primjene (EN): | This document specifies the performance requirements for three classes of sound calibrator: class LS (Laboratory Standard), class 1 and class 2. Acceptance limits are smallest for class LS and greatest for class 2 instruments. Class LS sound calibrators are normally used only in the laboratory; class 1 and class 2 are considered as sound calibrators for field use. 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 61672-1. The acceptance limits for class LS sound calibrators are based on the use of a laboratory standard microphone, as specified in IEC 61094-1, for demonstrations of conformance to the requirements of this document. The acceptance limits for class 1 and class 2 sound calibrators are based on the use of a working standard microphone, as specified in IEC 61094-4, for demonstrations of conformance to the requirements of this document. To promote consistency of testing of sound calibrators and ease of use, this document contains three normative annexes – Annex A Pattern evaluation tests, Annex B Periodic tests, Annex C Pattern evaluation report, and two informative Annexes – Annex D Relationship between tolerance interval, corresponding acceptance interval and the maximum-permitted uncertainty of measurement and Annex E Example assessments of conformance to specifications of this document. This document does not include requirements for equivalent free-field or random-incidence sound pressure levels, such as can be used in the overall sensitivity adjustment of a sound level meter. A sound calibrator can provide other functions, for exammple, tonebursts. Requirements for these other functions are not included in this document. |
| Izdanje: | 2 |
| ICS: | 17.140.50 Elektroakustika |
| Tehnički odbor/pododbor: | TO E501, Elektroakustika i ultrazvuk |
| Oznaka faze: | 60.60 - HRN dostupan |
| Glasilo (rasprava): | HZN e-Glasilo 6/2016 () |
| Glasilo (objava): | HZN e-Glasilo 3/2018 () |
| Glasilo (ispravak): | 4/2018 () |
| Način prihvaćanja: | pr - prihvaćanje strane norme u izvorniku |
| Cijena #1: | Cijena: 52,00 € | Jezik: en | Cjenovni razred: K | Broj stranica: 58 |
| Izvornik: | EN IEC 60942:2018 |
| Zamjenjuje: | HRN EN 60942:2004 |
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