Eye and face protection. Test methods - Physical and mechanical properties1 Scope This document specifies the reference test methods for determining the physical and mechanical properties of eye and face protectors. This document does not apply to any eye and face protection products for which the requirements standard(s) specifies other test methods. Other test methods can be used if shown to be equivalent and include uncertainties of measurement no greater than those required of the reference method.

Designate  the intensity of uniform changes in appearance

although measurements at the building are generally preferred

D: dimensional test methods

Market and financial data

BS EN IEC 61000‑3‑11 on electromagnetic compatibility (limits) is useful for:

The hazards covered by this standard are identified in clause 4

• constructional and performance requirements

dew-point temperature etc

Substantial changes to reflect scientific and technological advances since 1991

testing and maintenance in order to ensure confidence in the reliability of welded structures and their behaviour in service

NOTE 4: Additional guidance on domestic gas systems can be found in the European functional standards BS EN 1775 and BS EN 12279

acquirers and independent evaluators