Ophthalmic instruments. Indirect ophthalmoscopesBS EN ISO 10943: 2006 specifies minimum requirements and test methods for hand held, spectacle type, and head worn indirect ophthalmoscopes for observing indirect images of the eye fundus. BS EN ISO 10943 is not applicable to condensing lenses used for indirect ophthalmoscopy or to accessories. Nor does it apply to table mounted instruments such as Gullstrand ophthalmoscopes and their derivatives, nor to ophthalmoscopes primarily intended for image

BS EN ISO 14004 Environmental management systems - General guidelines on principles

Who is BS EN 17120- Measurement of phenol degradation for water purification for

and how to prepare the information and make it available

This is a full revision of the 2001 edition and introduces the following principal changes:

which covers the safety of gas fired tumble dryers and replaces BS 5258-17

• High efficiency filter specification table

it is necessary to make a distinction between the service definition or specification and the provision and delivery of the service:

4 Protection against dust emission

Overall conclusions regarding risk management standards

determination of binder content and grading of mineral aggregate

Annex B (normative) Inspection of delivery lines

operation and maintenance of services