Railway applications. Track. Concrete sleepers and bearers - General requirements1 Scope This part of the EN 13230 series defines technical criteria and control procedures which need to be satisfied by the constituent materials and the finished concrete sleepers and bearers, i. e.: precast concrete sleepers, twin block reinforced sleepers, bearers for switches and crossings, and special elements for railway tracks. The main requirement of concrete sleepers and bearers is the transmission of vertical, lateral and longitudinal loads

prevention of contamination and spill-proof water supply

research and development

not just electric lighting and it recognizes the importance of daylight for energy saving

Studio photographer

9 Centring device

The scope of the standard has been restricted to castors with wheels having diameters from 63 mm to 250 mm

Ferry terminals

but this could significantly increase the hazards of this procedure

the quantity of oil separated

EN 60728-1-1

those types of record and document which are the subject of separate British Standards should comply with them: for example BS 2509

What is BS EN 62496-2-4 - Optical circuit boards about