Field testing of general ventilation filtration devices and systems for in situ removal efficiency by particle size and resistance to airflow1 Scope This International Standard describes a procedure for measuring the performance of general ventilation air cleaning devices in their end use installed configuration. The performance measurements include removal efficiency by particle size and the resistance to airflow. The procedures for test include the definition and reporting of the system airflow. The procedure describes a method of counting ambient air particles of 0,3 m to 5,0 m upstream

Designing a building such that neither the whole building nor a significant part of it will collapse if localized failure were sustained

This vocabulary covers all topics that are the responsibility of the Sector Committee for Building and Civil Engineering

— There is a range of susceptibility and preference in the population

generic function types for plant/project specific applications and engineering functions for building controls and operations

2 Who should read this report

BS EN 61158-6-8 on Fieldbus application layer protocol specification is useful for:

Stragglers and outliers are also considered

a bi-directional backscatter using an optical time-domain reflectometer (OTDR)

BS EN 50289-4-16 specifies the criteria for circuit integrity of control and communication cables – wires

a calculation method to derive some mechanical properties (strength and stiffness in bending

The equipment specified by this standard is suitable for use with liquid petroleum products and other dangerous substances of Class 3 of ADR-European Agreement concerning the International Carriage of Dangerous Goods by Road – (flammable liquids) which have a vapour pressure not exceeding 110 kPa at 50 °C and petrol

Information on the use of filters for direct observation of the sun is given in Annex A and Annex B