BS EN 13138-4. Buoyant aids for swimming instruction - Part 4. In water performance, requirements and test procedures for Class B swimming devices

This second part of the standard gives best-practice recommendations relating to performance testing that will help users during the installation

BS EN IEC 60793‑1‑47 guidelines ensure the development of new fibre optic components and systems and years of reliable fibre performance in the field

and treating agents

11 gives you guidelines about the principle of the test methods

BS 7231-2 has been prepared under the direction of the Textiles and Clothing Standards Policy Committee

— an explanation of the assembly characteristics and options within the IEC 61439 series

thermal insulating materials are classified into inorganic

3 Frequency and voltage

Introduction of description and test methods for lead-free soldering

The baseband frequency response is directly measured in the frequency domain by determining the fibre response to a sinusoidaly modulated light source

BS EN ISO 14155-2:2009 Clinical investigation of medical devices for human subjects

the main differences are that slings do not have integral openings for the child’s limbs and form their structure only when attached to the carer’s torso