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17 Metrology and measurement. Physical phenomena
New standards
EVS-EN 13523-1:2024
Coil coated metals - Test methods - Part 1: Film thickness
Scope: This document specifies the procedures for determining the dry-film thickness of an organic coating on a metallic substrate (coil coating).
Five appropriate methods are given in this document:
a)  magnetic induction;
b)  eddy current;
c)  micrometer;
d)  optical;
e)  ruggedized optical interference.
The methods are applicable only to products with smooth and flat substrates, but the coating itself can be textured. In that case, for methods a) and b), the average of a series of readings will represent an average of the thickness of the organic coating, while method c) will give the maximum thickness, method d) can provide the minimum, maximum and average thickness, and e) will give the total thickness.
Non-destructive continuous-web methods on measurement of dry-film thickness are only applicable on method a).
Base documents: EN 13523-1:2024
ISO 13473-4:2024
Characterization of pavement texture by use of surface profiles — Part 4: One third octave band spectral analysis of surface profiles
Scope: This document describes the methods that are available to perform a spectral analysis of a pavement surface profile. It specifies a method for performing spatial frequency analysis (or texture wavelength analysis) of two-dimensional surface profiles that describe the pavement texture amplitude as a function of the distance along a straight or curved trajectory over the pavement. It also details an alternative (non-preferred) method to obtain these spectra:
a)       constant-percentage bandwidth obtained by digital filtering (normative method);
b)       constant narrow bandwidth frequency analysis by means of discrete Fourier transform (DFT), followed by a transformation of the narrow-band spectrum to an octave- or one-third-octave-band spectrum (informative).
The result of the frequency analysis will be a spatial frequency (or texture wavelength) spectrum in constant-percentage bandwidth bands of octave or one-third-octave bandwidth.
The objective of this document is to standardize the spectral characterization of pavement surface profiles. This objective is pursued by providing a detailed description of the analysis methods and related requirements for those who are involved in pavement characterization but are not familiar with general principles of frequency analysis of random signals. These methods and requirements are generally applicable to all types of random signals; however, they are elaborated in this document for their use in pavement surface profile analysis.
NOTE            The spectral analysis as specified in this document cannot express all characteristics of the surface profile under study. In particular, the effects of asymmetry of the profile, e.g. the difference of certain functional qualities for “positive” and “negative” profiles cannot be expressed by the power spectral density, as it disregards any asymmetry of the signal (see Annex B).
Base documents:
IEC 62057-3:2024
Electrical energy meters - Test equipment, techniques and procedures - Part 3: Automatic meter testing system (AMTS)
Scope: IEC 62057-3:2024 applies to an automatic meter testing system (AMTS) permanently installed in a controlled environment. It covers the functions, technical requirements and acceptance methods of an AMTS. It also applies to a newly manufactured AMTS to test static active or reactive energy meters on 50 Hz or 60 Hz networks with an AC voltage up to 600 V (phase to neutral).
This document defines the kind of AMTS that can continuously and automatically carry out all the test items specified in IEC 62058-31, including visual inspection, AC voltage test, no-load condition, starting current, accuracy and meter constant test.
This document does not apply to:
• data interfaces to the meter and test procedures of data interface;
• industrial controllers, industrial personal computers, and servers supplied along with the AMTS.
Base documents:
Replaced standards
EVS-EN 13523-1:2017
Coil coated metals - Test methods - Part 1: Film thickness
Scope: This part of the EN 13523 series specifies the procedures for determining the dry-film thickness of an organic coating on a metallic substrate (coil coating).
Four appropriate methods are given in this European Standard:
a)  magnetic induction;
b)  eddy current;
c)  micrometer;
d)  optical.
The methods are applicable only to products with smooth and flat substrates but the coating itself may be textured. In that case, for methods a) and b) the average of a series of readings will represent an average of the thickness of the organic coating, while method c) will give the maximum thickness and method d) can provide the minimum, maximum and average thickness.
Non-destructive continuous-web methods on measurement of dry-film thickness (see EN ISO 2808) are not dealt with.
Base documents: EN 13523-1:2017
ISO/TS 13473-4:2008
Characterization of pavement texture by use of surface profiles -- Part 4: Spectral analysis of surface profiles
Scope: ISO/TS 13473-4:2008 describes the methods that are available to perform a spectral analysis of pavement surface profile signals. It specifies three possible methods for spatial frequency analysis (or texture wavelength analysis) of two-dimensional surface profiles that describe the pavement roughness amplitude as a function of the distance along a straight or curved trajectory over the pavement. The result of the frequency analysis will be a spatial frequency (or texture wavelength) spectrum in constant-percentage bandwidth bands of octave or one-third-octave bandwidth.
ISO/TS 13473-4:2008 offers three alternative methods to obtain these spectra: 1) analogue constant-percentage bandwidth filtering; 2) digital constant-percentage bandwidth filtering; 3) constant narrow bandwidth frequency analysis by means of Discrete Fourier Transform, followed by a transformation of the narrow-band spectrum to an octave- or one-third-octave-band spectrum.
The objective of ISO/TS 13473-4:2008 is to standardize the spectral characterization of pavement surface profiles. This objective is pursued by providing a detailed description of the analysis methods and related requirements for those who are involved in pavement characterization, but are not familiar with general principles of frequency analysis of random signals. These methods and requirements are generally applicable to all types of random signals.
Base documents:
Replaced: ISO 13473-4:2024
Drafts
prEVS-ISO 5725-2
Accuracy (trueness and precision) of measurement methods and results - Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method (ISO 5725-2:2019, identical)
Scope: 1.1 This document
— amplifies the general principles for designing experiments for the numerical estimation of the
precision of measurement methods by means of a collaborative interlaboratory experiment;
— provides a detailed practical description of the basic method for routine use in estimating the
precision of measurement methods;
— provides guidance to all personnel concerned with designing, performing or analysing the results
of the tests for estimating precision.
NOTE Modifications to this basic method for particular purposes are given in other parts of ISO 5725.
1.2 It is concerned exclusively with measurement methods which yield measurements on a continuous
scale and give a single value as the test result, although this single value can be the outcome of a
calculation from a set of observations.
1.3 It assumes that in the design and performance of the precision experiment, all the principles as
laid down in ISO 5725-1 are observed. The basic method uses the same number of test results in each
laboratory, with each laboratory analysing the same levels of test sample; i.e. a balanced uniform-level
experiment. The basic method applies to procedures that have been standardized and are in regular use
in a number of laboratories.
1.4 The statistical model of ISO 5725-1:1994, Clause 5, is accepted as a suitable basis for the
interpretation and analysis of the test results, the distribution of which is approximately normal.
1.5 The basic method, as described in this document, (usually) estimates the precision of a
measurement method:
a) when it is required to determine the repeatability and reproducibility standard deviations as
defined in ISO 5725-1;
b) when the materials to be used are homogeneous, or when the effects of heterogeneity can be
included in the precision values; and
c) when the use of a balanced uniform-level layout is acceptable.
1.6 The same approach can be used to make a preliminary estimate of precision for measurement
methods which have not reached standardization or are not in routine use.
Base documents: ISO 5725-2:2019
prEVS-ISO 5725-4
Accuracy (trueness and precision) of measurement methods and results - Part 4: Basic methods for the determination of trueness of a standard measurement method (ISO 5725-4:2020, identical)
Scope: 1.1 This document
— specifies basic methods for estimating the bias of a measurement method and the laboratory bias
when a measurement method is applied;
— provides a practical approach of a basic method for routine use in estimating the bias of measurement
methods and laboratory bias;
— provides a brief guidance to all personnel concerned with designing, performing or analysing the
results of the measurements for estimating bias.
1.2 It is concerned exclusively with measurement methods which yield measurements on a continuous
scale and give a single value as the measurement result, although the single value can be the outcome of a
calculation from a set of observations.
1.3 This document applies when the measurement method has been standardized and all
measurements are carried out according to that measurement method.
NOTE In ISO/IEC Guide 99:2007(VIM), “measurement procedure” (2.6) is an analogous term related to the
term “measurement method” used in this document.
1.4 This document applies only if an accepted reference value can be established to substitute the true
value by using the value, for example: — of a suitable reference material;
— of a suitable measurement standard;
— referring to a suitable measurement method;
— of a suitable prepared known sample.
1.5 This document applies only to the cases where it is sufficient to estimate bias on one property at
a time. It is not applicable if the bias in the measurement of one property is affected by the level of any
other property (i.e. it does not consider interferences by any influencing quantity). Comparison of the trueness of two-measurement methods is considered in ISO 5725-6
Base documents: ISO 5725-4:2020
prEN ISO 13473-5
Characterization of pavement texture by use of surface profiles - Part 5: Determination of megatexture (ISO/DIS 13473-5:2024)
Scope: ISO 13473-5:2009 specifies procedures for determining the average depth or level of pavement surface megatexture by measuring the profile curve of a surface and calculating megatexture descriptors from this profile. The technique is designed to give meaningful and accurate measurement and description of pavement megatexture characteristics for various purposes.
Since there is an overlap between megatexture and the surrounding ranges, the megatexture descriptors unavoidably have a certain correlation with corresponding measures in those ranges. ISO 13473-5:2009 specifies measurements and procedures which are in relevant parts compatible with those in ISO 13473-1, ISO 8608 and EN 13036-5.
Base documents: ISO/DIS 13473-5; prEN ISO 13473-5
prEN IEC 60704-2-3:2024
Household and similar electrical appliances - Test code for the determination of airborne acoustical noise - Part 2-3: Particular requirements for dishwashers
Scope: These particular requirements apply to single unit electric dishwashers for household and similar use, with or without automatic programme control, for cold and/or warm water supply, for detachable or permanent connection to water supply or sewage systems, intended for placing on the floor against a wall, for building-in or placing under a counter, a kitchen worktop or under a sink, for wall-mounting or on a counter.
Base documents: 59A/263/CDV; prEN IEC 60704-2-3:2024
prEN ISO 14405-1
Geometrical product specifications (GPS) - Dimensional tolerancing - Part 1: Linear sizes (ISO/DIS 14405-1:2024)
Scope: This document establishes the default specification operator (see ISO 17450-2) and defines a special specification operator for linear sizes. It applies to the following features of linear size:
— cylinders,
— spheres,
— two parallel opposite planes.
Annex C handles the definition of sizes for circles as sections of a cone. Annex D handles the definition of sizes for circles as sections of a torus. Annex E handles the definition of sizes for parallel opposite lines as longitudinal sections of cylindrical tubes in half planes containing a specified axis. This part of ISO 14405 provides a set of tools to express several types of linear size characteristics. It does not present any information on the relationship between a function or a use and a linear size characteristic.
Base documents: ISO/DIS 14405-1; prEN ISO 14405-1