Specification for 50 A 650 V flameproof, restrained and bolted plugs and sockets for use in coal mines

This document gives guidelines for design application for features and functions known to increase the accessibility of products and systems used to support daily time management for people with cognitive impairment regardless of age

BS 5459-2:2008 Specification for performance requirements and tests for office furniture

Annex A (informative) Determination of the correction factor RT for conversion to a water temperature of 20 °C

performance requirements and test methods

both in relation to present circumstances and foreseeable developments

and units of measurement for the field of laser technology in order to unify the terminology and to arrive at clear definitions and reproducible tests of beam parameters and laser-oriented product properties

) nor to its characteristics (speeds

New luminance limits are set for luminaires used with display screen equipment according to ISO 9214-307

welding mask

reliable and efficient when in operation

Impartiality

It specifies natural and fanned draught flues for appliances which carry the CE mark