Pregled nacrta
This document specifies the requirements for qualification testing of welders for fusion welding of steels,
aluminium, copper, nickel, titanium and zirconium.
In this document, the terms "aluminium", “copper”, “nickel”, “titanium” and “zirconium” refer to the
materials and their alloys.
This document provides a set of technical rules for a systematic qualification test of the welder, and
enables such qualifications to be uniformly accepted independently of the type of product, location and
examiner or examining body.
When qualifying welders, the emphasis is placed on the welder's ability to manually manipulate the
electrode, welding torch or welding blowpipe, thereby producing a weld of acceptable quality.
The fusion welding processes referred to in this document include welding processes which are
designated as manual or partly mechanized.
This document does not cover fully mechanized and automated welding processes which are covered by
ISO 14732.
The principles of this document can be applied to other fusion welding processes.
This document specifies the requirements for qualification testing of welders for fusion welding of steels,
aluminium, copper, nickel, titanium and zirconium.
In this document, the terms "aluminium", “copper”, “nickel”, “titanium” and “zirconium” refer to the
materials and their alloys.
This document provides a set of technical rules for a systematic qualification test of the welder, and
enables such qualifications to be uniformly accepted independently of the type of product, location and
examiner or examining body.
When qualifying welders, the emphasis is placed on the welder's ability to manually manipulate the
electrode, welding torch or welding blowpipe, thereby producing a weld of acceptable quality.
The fusion welding processes referred to in this document include welding processes which are
designated as manual or partly mechanized.
This document does not cover fully mechanized and automated welding processes which are covered by
ISO 14732.
The principles of this document can be applied to other fusion welding processes.
This document specifies the requirements relating to:
Steel FE-PL2108 (36NiCrMo16)
1 250 MPa ≤ Rm ≤ 1 400 MPa
Bars
De ≤ 75 mm
for aerospace applications
This document defines terms and specifies requirements and test methods for wood veneer floor coverings for internal use.
This document is not applicable to multilayer parquets according to EN 13489 with a top layer thickness ≥ 2,5 mm and to modular mechanical locked floor covering (MMF) panels with wear resistant top layer according EN 16511.
This document specifies the minimum and optional content of the product passport and the unified code (definition of symbols, abbreviated terms, ...) relating to the identification of floor coverings and underlays excluding their packaging necessary for the implementation of a circular economy. The intended use of this document is to provide information that allows different stakeholders to assess floor coverings and underlays on product content, environmental information, reuse, and/or recycling potential.
This document specifies an engineering method for calculating the attenuation of sound during propagation outdoors in order to predict the levels of environmental noise at a distance from a variety of sources. The method predicts the equivalent continuous A-weighted sound pressure level (as described in ISO 1996-series) under meteorological conditions favourable to propagation from sources of known sound emission.
These conditions are for downwind propagation or, equivalently, propagation under a well-developed moderate ground based temperature inversion, such as commonly occurs in clear, calm nights. Inversion conditions over extended water surfaces are not covered and may result in higher sound pressure levels than predicted from this document (see e.g. References [11] and [12]).
The method also predicts a long-term average A weighted sound pressure level as specified in ISO 1996-1 and ISO 1996-2. The long-term average A weighted sound pressure level encompasses levels for a wide variety of meteorological conditions.
Guidance has been provided to derive a meteorological correction based on the angular wind distribution relevant for the reference or long-term time interval as specified in ISO 1996-1:2016, 3.2.1 and 3.2.2. Examples for reference time intervals are day, night, or the hour of the night with the largest value of the sound pressure level. Long-term time intervals over which the sound of a series of reference time intervals is averaged or assessed representing a significant fraction of a year (e.g. 3 months, 6 months or 1 year).
The method specified in this document consists specifically of octave band algorithms (with nominal mid-band frequencies from 63 Hz to 8 kHz) for calculating the attenuation of sound which originates from a point sound source, or an assembly of point sources. The source (or sources) may be moving or stationary. Specific terms are provided in the algorithms for the following physical effects:
— geometrical divergence;
— atmospheric absorption;
— ground effect;
— reflection from surfaces;
— screening by obstacles.
Additional information concerning propagation through foliage, industrial sites and housing is given in Annex A. The directivity of chimney-stacks to support the sound predictions for industrial sites has been included with Annex B. An example how the far-distance meteorological correction C0 can be determined from the local wind-climatology is given in Annex C. Experiences of the last decades how to predict the sound pressure levels caused by wind turbines is summarized in Annex D.
The method is applicable in practice to a great variety of noise sources and environments. It is applicable, directly, or indirectly, to most situations concerning road or rail traffic, industrial noise sources, construction activities, and many other ground-based noise sources. It does not apply to sound from aircraft in flight, or to blast waves from mining, military, or similar operations.
To apply the method of this document, several parameters need to be known with respect to the geometry of the source and of the environment, the ground surface characteristics, and the source strength in terms of octave band sound power levels for directions relevant to the propagation.
If only A weighted sound power levels of the sources are known, the attenuation terms for 500 Hz may be used to estimate the resulting attenuation.
The accuracy of the method and the limitations to its use in practice are described in Clause 9.
This document establishes a classification of surface insulations for electrical steel sheet, strip and laminations according to their general composition, relative insulating ability and function.
These surface insulations are either oxide layers or applied coatings.
The purpose of this classification is to create a nomenclature for the various types of surface insulations and to assist users of surface insulations by providing general information about the chemical nature and use of the surface insulations.
It is not the intent of this classification to specify insulation requirements in terms of specific values of surface insulation resistance. Such requirements are to be agreed between the purchaser and the steel producer, where applicable.
The classification is to be used in conjunction with the various specifications for cold rolled electrical steels (see Clause 2).
This document specifies the requirements relating to:
Steel FE-PL2108 (36NiCrMo16)
1 250 MPa ≤ Rm ≤ 1 400 MPa
Bars
De ≤ 75 mm
for aerospace applications.
This document defines terms and specifies requirements and test methods for wood veneer floor coverings for internal use.
This document is not applicable to multilayer parquets according to EN 13489 with a top layer thickness ≥ 2,5 mm and to modular mechanical locked floor covering (MMF) panels with wear resistant top layer according EN 16511.
This document specifies the minimum and optional content of the product passport and the unified code (definition of symbols, abbreviated terms, ...) relating to the identification of floor coverings and underlays excluding their packaging necessary for the implementation of a circular economy. The intended use of this document is to provide information that allows different stakeholders to assess floor coverings and underlays on product content, environmental information, reuse, and/or recycling potential.
This document specifies an engineering method for calculating the attenuation of sound during propagation outdoors in order to predict the levels of environmental noise at a distance from a variety of sources. The method predicts the equivalent continuous A-weighted sound pressure level (as described in ISO 1996-series) under meteorological conditions favourable to propagation from sources of known sound emission.
These conditions are for downwind propagation or, equivalently, propagation under a well-developed moderate ground‑based temperature inversion, such as commonly occurs in clear, calm nights. Inversion conditions over extended water surfaces are not covered and may result in higher sound pressure levels than predicted from this document (see e.g. References [11] and [12]).
The method also predicts a long-term average A‑weighted sound pressure level as specified in ISO 1996-1 and ISO 1996-2. The long-term average A‑weighted sound pressure level encompasses levels for a wide variety of meteorological conditions.
Guidance has been provided to derive a meteorological correction based on the angular wind distribution relevant for the reference or long-term time interval as specified in ISO 1996-1:2016, 3.2.1 and 3.2.2. Examples for reference time intervals are day, night, or the hour of the night with the largest value of the sound pressure level. Long-term time intervals over which the sound of a series of reference time intervals is averaged or assessed representing a significant fraction of a year (e.g. 3 months, 6 months or 1 year).
The method specified in this document consists specifically of octave band algorithms (with nominal mid-band frequencies from 63 Hz to 8 kHz) for calculating the attenuation of sound which originates from a point sound source, or an assembly of point sources. The source (or sources) may be moving or stationary. Specific terms are provided in the algorithms for the following physical effects:
— geometrical divergence;
— atmospheric absorption;
— ground effect;
— reflection from surfaces;
— screening by obstacles.
Additional information concerning propagation through foliage, industrial sites and housing is given in Annex A. The directivity of chimney-stacks to support the sound predictions for industrial sites has been included with Annex B. An example how the far-distance meteorological correction C0 can be determined from the local wind-climatology is given in Annex C. Experiences of the last decades how to predict the sound pressure levels caused by wind turbines is summarized in Annex D.
The method is applicable in practice to a great variety of noise sources and environments. It is applicable, directly, or indirectly, to most situations concerning road or rail traffic, industrial noise sources, construction activities, and many other ground-based noise sources. It does not apply to sound from aircraft in flight, or to blast waves from mining, military, or similar operations.
To apply the method of this document, several parameters need to be known with respect to the geometry of the source and of the environment, the ground surface characteristics, and the source strength in terms of octave band sound power levels for directions relevant to the propagation.
If only A‑weighted sound power levels of the sources are known, the attenuation terms for 500 Hz may be used to estimate the resulting attenuation.