Acoustics. Measurement of the influence of road surfaces on traffic noise - The close-proximity method1 Scope This document specifies a method of evaluating different road surfaces with respect to their influence on traffic noise, under conditions when tyre road noise dominates. The interpretation of the results applies to free flowing traffic travelling on essentially level roads at constant speeds of 40 km h and upwards, in which cases tyre road noise is assumed to dominate (although in some countries it is possible that tyre road noise does not

it is not compound-specific or specific to the oxidation state of the metals

It achieves this by using at least two races to contain the balls and transmit the loads through the balls

banks with vegetation with no superimposed load and not exceeding a total height of 1 m

— Access control services which may depend on active use of some data card classes such as microprocessor cards

What is ISO 4254-1-Safety requirements for agricultural machinery about

Measurement condition B

with caution

BS EN 61193-1 is the first part of a multi-series standard used for quality assessment systems

The pressure-balanced foot valve also called the emergency valve or internal security valve is the subject of BS EN 13316 and is an internal self-closing stop valve ensuring the primary containment to confine the transported dangerous substances within the tank when closed

It is intended to be applied to building rather than civil engineering works and aims to assist in the following:

Complete Semiconductor drive unit (SDU) and power converters are covered by EN 61287-1

requirements for quality conformance inspection