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1 Scope This part of IEC 61400 presents measurement procedures that enable noise emissions of a wind turbine to be characterised. This involves using measurement methods appropriate to noise emission assessment at locations close to the machine, in order to avoid errors due to sound propagation, but far away enough to allow for the finite source size. The procedures described are different…

1 Scope 1.1 General This Standard provides criteria in accordance with the National Building Code of Canada, for the structural design and evaluation of structures or structural elements made from wood or wood products, including: a) graded lumber; b) glued-laminated timber; c) cross-laminated timber (CLT); d) unsanded plywood; e) oriented strand board (OSB); f) composite building…

1 Scope and application 1.1 General This Standard provides rules and requirements for the design, fabrication, and erection of a broad range of steel structures based on limit states design approach. The term “steel structures” refers to structural members and frames that consist primarily of structural steel components, including structural steel acting compositely with concrete, and…

1 Scope This clause of Part 1 is applicable, except as follows: Addition: This standard applies to hand-held hedge trimmers which are designed for use by one operator for trimming hedges and bushes, including extended-reach hedge trimmers with a maximum length of 3,5 m. NOTE 101 The measurement of the length for extended-reach hedge trimmers is specified in 21.101. This standard is not…

This method determines the dimensional change of fabrics or garments, likely to occur in domestic laundering. A fabric specimen or garment is subjected to an appropriate combination of specified washing, drying and restoration procedures. This method contains six washing, five drying and one restoration procedure as listed below: Washing procedures 1 - 30 °C, low mechanical action, synthetic…

This document provides guidance on the type and extent of soil characterization necessary for the evaluation of human exposure to substances present in possibly leading to adverse effects. It does not provide guidance on: — the design or selection of numerical models that can be used to estimate exposure; — potential exposure to radioactivity, pathogens or asbestos in soil. Background…

This document specifies requirements for elastomeric materials used in seals for supply pipes and fittings, ancillaries and valves at operating temperatures in general from ?5 °C up to 50 °C and in special cases from ?15 °C up to 50 °C, for the following: a) general applications (see Table 4, type G series): — gaseous fuel [manufactured, natural and liquefied petroleum gas (LPG) in the…

IEC 60068-3-3:2019 RLV contains both the official IEC International Standard and its Redline version. The Redline version is available in English only and provides you with a quick and easy way to compare all the changes between the official IEC Standard and its previous edition. IEC 60068-3-3:2019 applies primarily to electro-technical equipment but its application can be extended to other…

IEC 60068-3-3:2019 applies primarily to electro-technical equipment but its application can be extended to other equipment and to components. In addition, if some type of analysis is always performed when making a seismic qualification, for example for the choice of the representative sample to be tested or for the extension of the seismic qualification from the tested specimen to similar…

IEC 61747-30-3:2019(E) applies to transmissive type active matrix liquid crystal displays. This document defines general procedures for quality evaluation related to the motion performance of transmissive thin film transistor (TFT) LCDs. It defines artefacts in the moving image and methods for motion artefact measurement. NOTE Motion blur measurement methods and analysis methods introduced in…