Precast concrete products. Ribbed floor elements1 Scope This document identifies the requirements, the basic performance criteria and evaluation of conformity for precast ribbed elements made of reinforced or prestressed normal weight concrete, used in floors or roofs. The elements consist of a top and or bottom slab and one or more (usually two) ribs; transverse ribs may also be present. Some examples of precast elements considered in this document are shown in Annex A. Specific requirements for

The measurement of the thermal energy transferred from the exterior of a material to the interior when exposed to a thermal hazard can be a significant factor in determining the level of protection or insulation provided by an assembly

Low voltage is used in electric power transmission and distribution

the test equipment and possible alternatives

BS EN IEC 63132‑2 gives you step-by-step guidelines for installation of vertical generators

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Who is BS EN 61987-11 – Measuring equipment for electronic data exchange for

This part of ISO 17165 specifies requirements for hose assemblies that are manufactured from hoses that conform to ISO 3949 and to all parts of ISO 1436

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The method is applicable to the determination of the concentration of ozone present in ambient air up to 500 µg/m3

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The new code of practice is intended for use by anyone responsible for implementing

BS EN 4331 recommends you the appropriate standard for quality control of Steel FE-WL1804