TP058 - Pravilnik o prvem ocenjevanju in obratovalnem monitoringu za vire hrupa ter o pogojih za njegovo izvajanje

ISO/IEC 17025:2017 specifies the general requirements for the competence, impartiality and consistent operation of laboratories.
ISO/IEC 17025:2017 is applicable to all organizations performing laboratory activities, regardless of the number of personnel.
Laboratory customers, regulatory authorities, organizations and schemes using peer-assessment, accreditation bodies, and others use ISO/IEC 17025:2017 in confirming or recognizing the competence of laboratories.

This document describes how sound pressure levels intended as a basis for assessing environmental
noise limits or comparison of scenarios in spatial studies can be determined. Determination can be
done by direct measurement and by extrapolation of measurement results by means of calculation.
This document is primarily intended to be used outdoors but some guidance is given for indoor
measurements as well. It is flexible and to a large extent, the user determines the measurement effort
and, accordingly, the measurement uncertainty, which is determined and reported in each case. Thus,
no limits for allowable maximum uncertainty are set up. Often, the measurement results are combined
with calculations to correct for reference operating or propagation conditions different from those
during the actual measurement. This document can be applied on all kinds of environmental noise
sources, such as road and rail traffic noise, aircraft noise and industrial noise.

1.1 This part of IEC 61260 describes procedures for periodic testing of octave-band and
fractional-octave-band filters that were designed to conform to the class 1 or class 2
specifications given in IEC 61260-1:2014. The aim of this standard is to ensure that periodic
testing is performed in a consistent manner by all laboratories.
1.2 The purpose of periodic testing is to assure the user that the performance of an octaveband
and fractional-octave-band filter conforms to the applicable specifications of IEC 61260-
1 for a limited set of key tests and for the environmental conditions under which the tests
were performed.
1.3 The extent of the tests in this standard is deliberately restricted to the minimum
considered necessary for periodic tests.
1.4 Periodic tests described in this standard apply to filters for which the manufacturer
claims conformance to the specifications in IEC 61260-1:2014. Periodic tests in this standard
apply to filters for which the model has been, or has not been, pattern approved by an
independent testing organization responsible for pattern approvals in accordance with the test
procedures of IEC 61260-2.
1.5 Because of the limited extent of the periodic tests, if evidence of pattern approval is not
publicly available, no general conclusion about conformance to the specifications of
IEC 61260-1 can be made, even if the results of the periodic tests conform to all applicable
requirements of this standard.

1.1 This part of IEC 61260 provides details of the tests necessary to verify conformance to
all mandatory specifications given in IEC 61260-1:2014 for octave-band and fractional-octaveband
filters.
1.2 Tests and test methods are applicable to class 1 and class 2 bandpass filters. The aim
is to ensure that all testing laboratories use consistent methods to perform pattern-evaluation
tests

This part of ISO 1996 defines the basic quantities to be used for the description of noise in community
environments and describes basic assessment procedures. It also specifies methods to assess
environmental noise and gives guidance on predicting the potential annoyance response of a community
to long-term exposure from various types of environmental noises. The sound sources can be separate
or in various combinations. Application of the method to predict annoyance response is limited to areas
where people reside and to related long-term land uses.
Community response to noise can vary differently among sound sources that are observed to have
the same acoustic levels. This part of ISO 1996 describes adjustments for sounds that have different
characteristics. The term “rating level” is used to describe physical sound predictions or measurements
to which one or more adjustments have been added. On the basis of these rating levels, the long-term
community response can be estimated.
The sounds are assessed either singly or in combination, allowing for consideration, when deemed
necessary by responsible authorities, of the special characteristics of their impulsiveness, tonality,
and low-frequency content, and for the different characteristics of road-traffic noise, other forms of
transportation noise (such as aircraft noise), and industrial noise.
This part of ISO 1996 does not specify limits for environmental noise.
NOTE 1 In acoustics, several different physical measures describing sound can have their level expressed in
decibels (e.g. sound pressure, maximum sound pressure, and equivalent continuous sound pressure). The levels
corresponding to these physical measures normally will differ for the same sound. This often leads to confusion.
Therefore, it is necessary to specify the underlying physical quantity (e.g. sound pressure level, maximum sound
pressure level, and equivalent continuous sound pressure level).
NOTE 2 In this part of ISO 1996, quantities are expressed as levels in decibels. However, some countries
validly express the underlying physical quantity, such as maximum sound pressure, in pascal or sound exposure
in pascal-squared seconds.
NOTE 3 ISO 1996-2 deals with the determination of sound pressure levels.

EN IEC 61260-1 specifies performance requirements for analogue, sampled-data, and digital implementations of band-pass filters. The extent of the pass-band region of a filter's relative attenuation characteristic is a constant percentage of the exact midband frequency for all filters of a given bandwidth. An instrument conforming to the requirements of this standard may contain any number of contiguous band-pass filters covering any desired frequency range. Performance requirements are provided for two filter classes: class 1 and class 2. In general, specifications for class 1 and class 2 filters have the same design goals and differ mainly in the acceptance limits and the range of operational temperature. Acceptance limits for class 2 are greater than, or equal to, those for class 1. Maximum-permitted expanded uncertainties of measurement are also specified. Performance requirements are given for designs where the octave frequency ratio and the mid-band frequencies are powers of ten. Band-pass filters conforming to the performance requirements of this standard may be part of various measurement systems or may be an integral component of a specific instrument such as a spectrum analyser. This standard specifies the ranges of environmental conditions for operation of the filters. The required range depends on whether the instrument containing the filters is designed to be operated in a controlled environment or more generally in the field. Band-pass filters conforming to the requirements of this standard are capable of providing frequency-band-filtered spectral information for a wide variety of signals, for example, time-varying, intermittent or steady; broadband or discrete frequency; and long or short durations.

This part of IEC 61672 gives electroacoustical performance specifications for three kinds of sound measuring instruments: - a time-weighting sound level meter that measures exponential-time-weighted, frequencyweighted sound levels; - an integrating-averaging sound level meter that measures time-averaged, frequencyweighted sound levels; and - an integrating sound level meter that measures frequency-weighted sound exposure levels. Sound level meters conforming to the requirements of this standard have a specified frequency response for sound incident on the microphone from one principal direction in an acoustic free field or successively from random directions. Sound level meters specified in this standard are intended to measure sounds generally in the range of human hearing. NOTE The AU frequency weighting specified in IEC 61012 can be applied for measurements of A-weighted sound levels of audible sound in the presence of a source that contains spectral components at frequencies greater than 20 kHz. 1 Two performance categories, class 1 and class 2, are specified in this standard. In general, specifications for class 1 and class 2 sound level meters have the same design goals and differ mainly in the acceptance limits and the range of operational temperature. Acceptance limits for class 2 are greater than, or equal to, those for class 1. This standard is applicable to a range of designs for sound level meters. A sound level meter may be a self-contained hand-held instrument with an attached microphone and a built-in display device. A sound level meter may be comprised of separate components in one or more enclosures and may be capable of displaying a variety of acoustical signal levels. Sound level meters may include extensive analogue or digital signal processing, separately or in combination, with multiple analogue and digital outputs. Sound level meters may include general-purpose computers, recorders, printers, and other devices that form a necessary part of the complete instrument. Sound level meters may be designed for use with an operator present or for automatic and continuous measurements of sound level without an operator present. Specifications in this standard for the response to sound waves apply without an operator present in the sound field.

This International Standard contains requirements for the competence of bodies performing inspection and for the impartiality and consistency of their inspection activities. It applies to inspection bodies of type A, B or C, as defined in this International Standard, and it applies to any stage of inspection.

This International Standard specifies the framework of an engineering method for calculating a statistical distribution of sound exposure levels for impulsive sound events for the purposes of environmental noise assessment. This International Standard is applicable to impulse sounds propagating over large distances (e.g. 0,5 km to 30 km) from sources such as mine blasting, artillery fire and bomb explosions, using conventional explosives of moderate charge mass (e.g. 0,05 kg to 1 000 kg of TNT equivalent). The effects of meteorological conditions and terrain upon sound propagation are considered.

This International Standard describes preferred methods for the description and the physical measurement of single impulsive sounds or short series of impulsive sounds and for the presentation of the data. It does not provide methods for interpreting the potential effects of series of impulses of noise on hearing, community response or structures. This International Standard applies to single impulsive sounds or short series of impulsive sounds such as those produced by explosions, artillery fire, bombing and similar activities, sonic booms, pistol and rifle fire, and cartridgeoperated tools or machines. Two different kinds of measurements are considered:
a) measurements of phase-sensitive parameters, such as peak sound pressure level and duration, that directly characterize the variation of sound pressure with time; and
b) measurements of time-integrated quantities such as frequency-weighted sound exposure level or sound energy level.

This International Standard describes preferred methods for the description and the physical measurement of single impulsive sounds or short series of impulsive sounds and for the presentation of the data. It does not provide methods for interpreting the potential effects of series of impulses of noise on hearing, community response or structures. This International Standard applies to single impulsive sounds or short series of impulsive sounds such as those produced by explosions, artillery fire, bombing and similar activities, sonic booms, pistol and rifle fire, and cartridgeoperated tools or machines. Two different kinds of measurements are considered:
a) measurements of phase-sensitive parameters, such as peak sound pressure level and duration, that directly characterize the variation of sound pressure with time; and
b) measurements of time-integrated quantities such as frequency-weighted sound exposure level or sound energy level.

Together with EN 61672-1, supersedes EN 60651:1994 + A1:1994 + A2:2001 + EN 60804:2000